Cctv newsVirus is a word that makes people turn pale and avoid it. However, there is such a scientist who, despite difficulties, has played a key role in successfully stopping the avian influenza epidemics such as H5N1 and H7N9 in China. She is Chen Hualan, director of the National Avian Influenza Reference Laboratory and academician of the Chinese Academy of Sciences.

The National Avian Influenza Reference Laboratory of Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, which she led, built a safety "epidemic prevention wall" by relying on a number of international leading achievements independently developed, and contributed China’s wisdom and strength to the prevention of avian influenza in many countries around the world.

Where is the initial heart?

In 1999, as a postdoctoral fellow, Chen Hualan went to the Influenza Sub-center of the Centers for Disease Control (CDC) in the United States to conduct cooperative research on avian influenza. After the exchange, the other party kindly retained him, but Chen Hualan resolutely embarked on the road of returning home.

"It doesn’t matter if the conditions are backward, we can build it slowly." Chen Hualan said that China is a big country for raising poultry. Once bird flu breaks out, it will inevitably suffer great losses if it lacks effective means. "Since the knowledge and technology I have mastered are urgently needed by the country, why don’t I come back?"

Highly pathogenic avian influenza is a class A infectious disease. Once the bird flu epidemic is found all over the world, the common way is to cull all the poultry in a certain range. Doing so not only consumes huge human and financial resources, but also brings disaster to the aquaculture industry.

"Why not seek a better solution?" Chen Hualan, who has just returned to China, boldly proposed, "It is ‘ to develop a new and efficient vaccine for prevention and control; Four or two thousand catties ’ The best choice. " The laboratory she led was designated as the "National Reference Laboratory for Avian Influenza" by the Ministry of Agriculture, responsible for the epidemic diagnosis, epidemiological monitoring and prevention and control technology research of highly pathogenic avian influenza.

At the beginning of 2004, H5 subtype highly pathogenic avian influenza raided 14 provinces in China. The National Reference Laboratory for Avian Influenza receives samples from all over the country for final identification every day. In a short time, more than 50 cases of highly pathogenic H5N1 avian influenza were diagnosed, which played a key role in controlling the epidemic in time.　

Chen Hualan led the team to speed up the pace of vaccine research and development. In more than a year, they completed the research on the new avian influenza vaccine in the laboratory. The successful development of H5N1 and H5N1 avian influenza vaccines has greatly improved China’s ability to prevent and control avian influenza and saved tens of billions of yuan for the country.

Re-war virus

In March 2013, there were cases of human infection with H7N9 avian influenza in China. The rapid spread of the virus caused a lot of panic in the country and attracted great attention from the international community.

The epidemic situation is like military intelligence, and Chen Hualan has once again started a race against the virus. She and her colleagues sent a number of teams to take samples at the first time, and then immediately conducted research and analysis.

Less than 48 hours after the first infected case was announced, Chen Hualan’s team isolated a similar virus from the samples collected in the live poultry market. According to the research results, Chen Hualan suggested that the live poultry market in infected areas should be closed immediately. After her suggestion was adopted, the number of new infections decreased rapidly.

"Although the H7N9 virus that appeared in 2013 can infect people, it is not pathogenic to poultry, and chickens do not show any clinical symptoms after infection, which makes it difficult to find the virus in time." Chen Hualan later said.

The H7N9 avian influenza virus caused a total of 5 waves of human infections, resulting in 1,567 infections, of which more than 600 people were killed. From October every year to March the following year, it is a high incidence period of human infection with H7N9 avian influenza.

Chen Hualan said: "At the thought that H7N9 avian influenza virus is threatening the lives of thousands of people, we dare not relax for a moment."

In the four Spring Festival after the emergence of H7N9 virus, Chenhualan was spent in the laboratory. But the virus is a tough opponent.

"In January 2017, we found in the monitoring that the H7N9 avian influenza virus had a key mutation, and poultry began to get sick and died in large numbers after infection." The situation that Chen Hualan is most worried about has emerged. "The mutated virus is more harmful to people, and the mortality rate can reach more than 50%."

From January to September, 2017, the "race" between team Chen Hualan and the virus entered a sprint stage: intensify on-site sample collection and pathogen monitoring nationwide, speed up virus analysis and research, formulate prevention and control measures, put forward prevention and control suggestions, speed up the process of creating efficient vaccines, and accept evaluation and testing & HELIP; … Miracle happened like this. Before the arrival of the virus epidemic season in autumn and winter of 2017, Chen Hualan team successfully launched the bivalent inactivated vaccine of recombinant avian influenza virus (H5/H7).

The popularization of the vaccine has effectively controlled the spread of H7N9 avian influenza virus in poultry and successfully blocked the infection of H7N9 avian influenza virus in people.

be as usual

Behind the first-class scientific research is the unimaginable contribution of ordinary people. Team Chen Hualan conducts large-scale avian influenza virus monitoring twice a year, and members go to farms and live poultry markets across the country to take samples from live poultry and bring them back for analysis. When sampling, researchers should use swabs to take samples from the deep throat and cloaca of chickens respectively. In 2017 alone, the team members sampled 53,000 copies. After returning to the laboratory, they must isolate the virus as soon as possible and do further analysis and research.

In addition to epidemic diagnosis and vaccine research, Chen Hualan also led the team to strengthen the active surveillance of avian influenza epidemiology in China and explore the biological characteristics of the virus. By giving full play to the individual strengths of team members, a full chain and systematic influenza research layout has been formed. At the same time, it shoulders the responsibility of providing scientific reference for the prevention and control of bird flu epidemic and early warning of human influenza.

In 2013, Chen Hualan was selected as one of the top ten scientific figures in Nature, and Nature called her "the one fighting in the front line ‘ Influenza detective ’ " . In 2016, Chen Hualan won the "World Outstanding Female Scientist Achievement Award" awarded by UNESCO.

Even though Chen Hualan has stood in the leading position in the world, he and his team are always in a state of "preparing for war". Chen Hualan said: "Avian influenza virus can infect not only poultry, but also migratory birds. Migratory birds who migrate across borders are very free, and they don’t need to fly to any country ‘ Passport ’ . If they carry the virus, an epidemic may occur as soon as they come into contact with local poultry. We must always be vigilant and respond to emerging epidemics at any time. "

Now, the word "avian influenza" has quietly faded out of the sight of ordinary people, while Chen Hualan remains vigilant. "The highly pathogenic avian influenza virus has evolved rapidly, and we can’t relax at all". Some people ask, is it worthwhile to give up many pleasures in life for work? Chen Hualan replied slowly: "Is it more fun and worthwhile for researchers engaged in the prevention and control of infectious diseases to nip the highly dangerous bird flu epidemic in the bud?" (Text/Kan Chunyu)

　　CCTV News:On June 24th, the Dialogue on Investing in China CCTV Financial CBD Multinational Corporations, jointly sponsored by China Central Radio and Television General Station and China Council for the Promotion of International Trade, was launched in Beijing. At the event site, heads of relevant state ministries and commissions, executives of 49 multinational companies, representatives of more than 10 international organizations, mayors of hot investment cities and authoritative experts in the industry gathered together to discuss new opportunities for investment in China.

　　On-site guests: The event shows the latest achievements of China’s comprehensive deepening reform. Walking with China is walking with opportunities.

　　At the event, the guests agreed that the new development of China has brought new impetus and new opportunities to the world.

　　Huang Hanquan, president of the Macroeconomic Research Institute of the National Development and Reform Commission, said that the Dialogue on Investing in China CCTV Financial CBD Multinational Corporations showed an important window for China to comprehensively deepen the latest achievements of reform, and also provided an important platform for domestic and foreign enterprises to understand policies and increase exchanges. Walking with China is walking with opportunities; Investing in China means investing in the future. China economy is the main "engine" and "stabilizer" of world economic growth. At the same time, China is now accelerating the cultivation and development of new quality productivity, which will provide foreign-funded enterprises with new technologies, new equipment, new services and other market demands.

　　On-site guests said that in recent years, many multinational companies have achieved success by "investing in China". Now, a large number of multinational companies are still optimistic about the long-term potential of the China market, and are willing to continue to invest in China, deeply cultivate China and develop together.

　　Tang Yadong, secretary general of the European Union Chamber of Commerce in China, said that he had heard many successful stories of European companies in China and listened to their optimistic prospects in the market. He thinks it is very important for enterprises to know China. European companies see opportunities in China and enjoy the dividends. China has been opening its market and will continue to open it, and they hope this situation will continue.

　　Shi Mingde, chairman of the Asia-Pacific Tourism Association, said that he was very confident that China would continue to develop and prosper in tourism and the overall economy. The whole world is going through challenging times, but looking ahead, he is very optimistic about the future of China.

　　Sing the chinese’s bright economy on foreign-funded enterprises optimistic about China plus China

　　Over the years, many foreign-funded enterprises have achieved success by "investing in China". At the event, when interviewed by reporters, many executives of foreign-funded enterprises were generally full of confidence in China’s economic prospects, hoping to seize the opportunity and actively invest in China to achieve mutual benefit and win-win results.

　　The reporter learned that multinational companies that came to the event site have invested in five continents and gathered advanced productivity in aerospace, biopharmaceuticals and other fields. Some of them have been deeply cultivated in China for more than a hundred years, constantly increasing capital and expanding production, forming the "China practice" of global development; Others rely on China manufacturing to speed up the upgrading of industrial chain and run out of the "China speed" of high-quality development.

　　Shi Nathan, global vice president of Cummins and chairman of Cummins China, said that the scale of China market is the largest in the world, not only for them, but also for the whole market. If you want to be a global player, you must participate.

　　The data shows that from January to May 2024, newly established foreign-funded enterprises nationwide increased by 17.4% year-on-year, and the actual use of foreign capital reached a historical high. Many heads of foreign companies said that China’s perfect infrastructure, complete industrial base, complete supply chain, convenient logistics and transportation, and huge consumer market are the continuous driving forces for them to invest in China and take root in China. They are concerned about China’s accelerating the development of new quality productive forces and further expanding the pace of high-level opening to the outside world. They are optimistic about the long-term potential of the China market and are willing to continue to invest in China and deeply cultivate China.

　　Xu Xinxiong, global CEO of Tencel Group in Thailand and vice president of Thailand Chamber of Commerce in China, said that China is developing very fast, not only with high speed, but also with high quality, and they see more opportunities here.

　　Mark Mann, president of Danish Gryffindor China, said that investing in China means investing in innovation and sustainable development. They will continue to invest and maintain a good positioning, so as to continue to promote the high-quality growth of business partners and society.

　　Interpreting policies, increasing trust and dispelling doubts, government departments and foreign-funded enterprises talk about development together

　　On the day of the event, the government-enterprise dialogue meeting of foreign-funded enterprises was held simultaneously. In view of the concerns in investment and operation in China, a number of relevant department heads interacted with foreign-funded enterprises on the spot.

　　During the dialogue, heads of relevant departments such as the Ministry of Foreign Affairs, the Ministry of Finance, the Ministry of Agriculture and Rural Affairs, the General Administration of Customs, and the State Administration of Market Supervision interpreted policies on the spot, increased trust and dispelled doubts, and answered the questions and demands of more than 20 heads of multinational enterprises from 12 countries and regions with more accurate policy tools.

　　Foreign-funded enterprises are important participants, witnesses and contributors to the rapid economic development in China. Foreign-funded enterprises have been deeply involved in the China market, which has accelerated their own growth and gained returns.

　　Data show that in the past ten years, China has introduced about 140 billion US dollars of foreign capital every year on average. In the past five years, the rate of return of foreign direct investment in China is about 9%, which is at a high level in the world. On-site guests said that China is promoting Chinese modernization in an all-round way with high-quality development, accelerating the development of new-quality productive forces and steadily promoting institutional opening, which will provide a better business environment and stronger support for foreign-funded enterprises to invest in China with peace of mind.

　　Ren Hongbin, president of China Council for the Promotion of International Trade, said that the advantages of market, industry, talents and innovation will not change the fundamentals of China’s long-term economic development, which will bring new broad opportunities for the development of foreign-funded enterprises.

State and municipal people’s governments, provincial committees, offices, departments and bureaus:

The Long-term Plan for the Prevention and Treatment of Chronic Diseases in Yunnan Province (2017-2025) has been agreed by the provincial people’s government and is hereby issued to you. Please implement it carefully.

General Office of Yunnan Provincial People’s Government

November 14, 2017

(This piece is publicly released)

Long-term Plan for Prevention and Treatment of Chronic Diseases in Yunnan Province (2017-2025)

In order to strengthen the prevention and treatment of chronic diseases in our province, reduce the burden of people’s diseases, and strive to ensure people’s health in an all-round and full-cycle way, according to the spirit of the Outline of Healthy China 2030, the Notice of the General Office of the State Council on Printing and Distributing the Long-term Plan for the Prevention and Treatment of Chronic Diseases in China (2017-2025) (Guo Ban Fa [2017] No.12) and the Outline of Healthy Yunnan 2030.

I. Planning objectives

By 2020, the prevention and control environment of chronic diseases in the province will be significantly improved, and efforts will be made to reduce the premature mortality rate caused by chronic diseases, and strive to reduce the mortality rate of people aged 30-70 due to cardiovascular and cerebrovascular diseases, cancer, chronic respiratory diseases and diabetes by 10% compared with 2015. By 2025, the risk factors of chronic diseases in the province will be effectively controlled, and efforts will be made to realize the health management of the whole population and the whole life cycle, and strive to reduce the mortality rate of people aged 30-70 due to cardiovascular and cerebrovascular diseases, cancer, chronic respiratory diseases and diabetes by 20% compared with 2015. Gradually improve the healthy life expectancy of residents and effectively control the burden of chronic diseases.

Second, the main task

(1) Strengthen health education and improve the health quality of the whole people.

1. Carry out national education on the prevention and treatment of chronic diseases. Establish and improve the health education system, popularize health science knowledge such as prevention and treatment of chronic diseases, and educate and guide the masses to establish a correct health concept. The Provincial Health and Family Planning Commission organized experts to compile scientific and practical knowledge and information guides for the prevention and treatment of chronic diseases, which were released to the public by professional institutions. Make full use of mainstream media and new media to carry out various forms of publicity and education on the prevention and treatment of chronic diseases, and widely publicize health science knowledge such as reasonable diet, moderate exercise, smoking cessation and alcohol restriction, and psychological balance. Organs, enterprises and institutions should regularly organize lectures on health knowledge of occupational groups, and towns (streets) should carry out targeted health publicity and education according to the characteristics of different groups of people. The Provincial Health and Family Planning Commission, together with relevant departments, organized and implemented activities such as the nationwide health literacy promotion campaign in our province and the healthy trip to Yunnan to enhance the effect of health education. By 2020 and 2025, the awareness rate of core knowledge of key chronic diseases among residents will reach 60% and 70% respectively. Provincial Health and Family Planning Commission takes the lead; Provincial Education Department, Press, Publication, Radio, Film and Television Bureau and Information Office cooperate; The state and municipal people’s governments are responsible for the implementation)

2. Advocate a healthy and civilized lifestyle. Innovate and enrich prevention methods, implement the concept of zero-level prevention, and comprehensively strengthen the education of health knowledge and behavior in kindergartens, primary and secondary schools, such as nutritional balance, oral health care, and vision protection, so as to move forward the barrier of prevention work. Vigorously implement the "Colorful Yunnan National Fitness Project", guide the broad masses of people to regard physical and mental health as an important ability for individuals to develop in an all-round way and adapt to society, and consciously establish a personal development concept that is proud of participating in physical fitness and having a strong body, so that physical fitness can become the basic lifestyle of more people. Encourage organs, enterprises and institutions to establish a system of inter-work fitness, and organize staff sports meetings, brisk walking, health knowledge contests and other activities. Relying on village (neighborhood) committees, elderly associations, volunteers, social sports instructors, healthy lifestyle instructors, etc., scientifically guide the public to carry out self-health management. To further promote healthy lifestyle actions, the Provincial Health and Family Planning Commission, together with relevant departments, organized special actions of "reducing salt, oil, sugar, healthy mouth, healthy weight and healthy bones" and special actions to control tobacco hazards, developed and popularized appropriate technologies and support tools to enhance people’s ability to maintain and promote their own health.(Provincial Health and Family Planning Commission takes the lead; Provincial Education Department, Sports Bureau, Provincial Federation of Trade Unions, Communist Youth League Committee and Provincial Women’s Federation cooperate; The state and municipal people’s governments are responsible for the implementation)

(B) the implementation of early diagnosis and early treatment to reduce the risk of high-risk groups.

1. Carry out early detection of chronic diseases. Further strengthen the implementation of the first diagnosis and blood pressure measurement for people over 35 years old, find hypertensive patients and high-risk groups, and provide timely intervention guidance. Community health service centers and township hospitals gradually provide services such as blood sugar and blood lipid testing and oral preventive health care. Gradually list the disease screening technology that is clinically diagnosable, treatable, acceptable to the masses and affordable by the government as a public health measure. Early diagnosis and treatment of cancers with mature screening techniques such as lung cancer, upper digestive tract cancer and cervical cancer will be gradually carried out in high-risk areas and high-risk groups. Strengthen the standardized management of health checkups, improve the system of health checkups for students, improve the quality of health checkups for the elderly, promote the screening rate of chronic diseases such as cancer, stroke and coronary heart disease, and incorporate oral health checkups into routine physical checkups. (Provincial Health and Family Planning Commission takes the lead; Cooperate with the Provincial Department of Education and the Department of Finance; The state and municipal people’s governments are responsible for the implementation)

2. Strengthen personalized health intervention. Relying on professional public health institutions and medical institutions, we will set up a smoking cessation consultation hotline, establish a smoking history system for the first consultation, provide short smoking cessation intervention and smoking cessation clinics, and improve the ability of smoking cessation intervention. Promote the integration of sports and medicine, and sports administrative departments at all levels set up national physical fitness monitoring centers in qualified institutions to provide professional guidance services for sports health. Community health service centers and township hospitals gradually carry out risk assessment and intervention guidance for high-risk groups of chronic diseases such as overweight and obesity, elevated blood pressure and blood sugar, and dyslipidemia, and provide consulting services such as balanced diet, physical activity, and physical identification. Encourage patients with chronic diseases and high-risk groups to be vaccinated with cost-effective vaccines such as pneumonia and influenza. Strengthen the intervention of periodontal disease, dental caries and other common oral diseases, and implement oral health care measures such as local use of fluoride for children and pit and fissure sealing, so that the caries rate of 12-year-old children is controlled within 30%. Pay attention to the guidance and intervention of common chronic diseases, oral diseases and mental health of the elderly. Explore and develop employee health management services that integrate chronic disease prevention, risk assessment, follow-up and intervention guidance.(Provincial Health and Family Planning Commission takes the lead; Provincial Sports Bureau and Provincial Federation of Trade Unions cooperate; The state and municipal people’s governments are responsible for the implementation)

(3) Strengthen standardized diagnosis and treatment to improve the therapeutic effect.

1. Establish a scientific and reasonable grading diagnosis and treatment system. Priority will be given to bringing patients with chronic diseases into the contracted service scope of family doctors, actively promoting the graded diagnosis and treatment of patients with hypertension, diabetes, cardiovascular and cerebrovascular diseases, tumors, chronic respiratory diseases, etc., forming a reasonable medical order of primary diagnosis, two-way referral, up-and-down linkage, and rapid and slow division, and improving the treatment-rehabilitation-long-term care service chain. Guide tertiary public hospitals to gradually reduce the number of general outpatient clinics, focusing on the development of diagnosis and treatment of critical and difficult diseases. Improve various modes of division of labor and cooperation such as medical consortium and medical group, and improve the overall performance of the service system. Gradually improve the two-way referral procedure, focus on unblocking the downward referral channels for patients in chronic and convalescent periods, and realize orderly referral between different levels and different types of medical institutions.(Provincial Health and Family Planning Commission takes the lead; The state and municipal people’s governments are responsible for the implementation)

2. Effectively improve the quality of diagnosis and treatment services. We will build an information platform for medical quality management and control, strengthen real-time management and control of chronic disease diagnosis and treatment services, and continuously improve medical quality and medical safety. Fully implement clinical pathway management, standardize diagnosis and treatment behavior, optimize diagnosis and treatment process, strive to shorten the time from the onset of acute cardiovascular and cerebrovascular diseases to effective treatment, promote the application of individualized standardized treatment programs for cancer, and reduce patient mortality. Provincial Health and Family Planning Commission takes the lead; The state and municipal people’s governments are responsible for the implementation)

(D) to promote the coordination of medical care and prevention, and realize the whole process of health management.

1 to strengthen the capacity building of institutions and teams for the prevention and treatment of chronic diseases. Give full play to the role of chronic disease prevention and control experts in policy consultation, monitoring and evaluation, personnel training, technical guidance, etc., and establish provincial chronic disease expert committees to guide the prevention and control of chronic diseases in various places. The establishment of the provincial, regional and grass-roots TCM specialist disease diagnosis and treatment center composed of TCM specialist disease prevention and control system. State and municipal health and family planning administrative departments should specify a tertiary hospital to undertake technical guidance for the prevention and treatment of cardiovascular and cerebrovascular diseases, cancer, chronic respiratory diseases, diabetes and other chronic diseases in the administrative area. Hospitals above the second level should be equipped with professionals to perform public health duties and do a good job in the prevention and control of chronic diseases. Grass-roots medical and health institutions should improve the capacity of public health services to meet the needs of chronic disease prevention and treatment. (Provincial Health and Family Planning Commission takes the lead; Provincial Development and Reform Commission and the Department of Finance cooperate; The state and municipal people’s governments are responsible for the implementation)

2. Establish and improve the working mechanism of combining prevention and treatment of chronic diseases. Disease prevention and control institutions, hospitals and primary medical and health institutions should establish a cooperation mechanism with division of labor and complementary advantages. Disease prevention and control institutions are responsible for monitoring and epidemiological investigation of chronic diseases and their risk factors, implementation guidance of comprehensive prevention and control intervention strategies and measures, and assessment and evaluation of prevention and control effects; The hospital undertakes the registration report of chronic diseases, the diagnosis and treatment of critical and emergency patients, and provides technical support for primary medical and health institutions; Basic medical and health institutions specifically implement basic medical and health services such as population health promotion, high-risk group discovery and guidance, patient intervention and follow-up management. Strengthen cooperation between doctors and prevention, and promote the integrated development of prevention, treatment and management of chronic diseases. Provincial Health and Family Planning Commission takes the lead; The state and municipal people’s governments are responsible for the implementation)

3. Establish a long-term working mechanism for health management. Clarify the responsibilities of the government, medical and health institutions, families, individuals and other parties in health management, and formulate and improve the service content and service process of health management. Gradually incorporate appropriate technologies for early diagnosis and treatment of major chronic diseases such as cancer and stroke that meet the requirements into the routine diagnosis and treatment according to regulations. Encourage enterprises, charitable organizations, commercial insurance institutions and private medical institutions to participate in risk assessment, health consultation and health management of high-risk groups of chronic diseases through government purchase of services, and cultivate a health management service industry characterized by personalized service, membership management and holistic promotion.(Provincial Health and Family Planning Commission takes the lead; Provincial Development and Reform Commission and Yunnan Insurance Regulatory Bureau cooperate; The state and municipal people’s governments are responsible for the implementation)

4. Give full play to the role of traditional Chinese medicine in preventing diseases and promoting rehabilitation. Combine the advantages of traditional Chinese medicine with health management, and explore the health protection model of traditional Chinese medicine which integrates health culture, health management and health insurance. Encourage social forces to set up standardized TCM health care institutions and accelerate the development of health care services. Expand the service fields of Chinese medicine hospitals and qualified medical and health care institutions, and provide services such as Chinese medicine health consultation and evaluation, intervention investigation and follow-up management for the masses. Encourage medical institutions of traditional Chinese medicine and doctors of traditional Chinese medicine to provide technical support such as health consultation and conditioning for health care institutions of traditional Chinese medicine. With all kinds of medical institutions at all levels as the carrier, we will promote a healthy life and work style that integrates the concept of preventing diseases in traditional Chinese medicine, and vigorously spread the knowledge of traditional Chinese medicine and the easy-to-master TCM health care techniques and methods.(Provincial Health and Family Planning Commission takes the lead; The state and municipal people’s governments are responsible for the implementation)

(five) improve the security policy, and effectively reduce the burden of medical treatment for the masses.

1. Improve medical insurance and assistance policies. We will improve relevant policies such as overall planning of basic medical insurance clinics for urban and rural residents, and explore primary medical and health institutions to pay patients with chronic diseases in a per-head package. We will improve the differentiated payment policies for medical insurance in different levels of medical institutions, and promote the downward shift in the focus of chronic disease prevention and treatment and the sinking of resources. Develop diversified health insurance services, encourage qualified commercial insurance institutions to develop commercial health insurance products linked with basic medical insurance, and carry out insurance handling services related to various chronic diseases.(led by the Provincial Department of Human Resources and Social Security; Provincial Civil Affairs Department, Health and Family Planning Commission and Yunnan Insurance Regulatory Bureau cooperate; The state and municipal people’s governments are responsible for the implementation)

2. Ensure the supply of medicines. Do a good job in the supply of drugs for major diseases and chronic diseases such as hypertension, diabetes, cancer and coronary heart disease in urban and rural areas, and reasonably reduce the purchase price. Strengthen the connection of drug use between hospitals above the second level and primary medical and health institutions. Give play to the role of social pharmacies in ensuring the supply of chronic diseases drugs at the grassroots level and improve the accessibility of drug supply. Elderly patients with chronic diseases can be prescribed long-term drugs for chronic diseases by family contracted doctors, and explore ways to meet patients’ drug demand.(Provincial Health and Family Planning Commission takes the lead; Provincial Human Resources and Social Security Department, Industry and Information Technology Commission and Food and Drug Administration cooperate; The state and municipal people’s governments are responsible for the implementation)

(6) Control risk factors and create a healthy and supportive environment.

1. Build a healthy production and living environment. Promote green and clean production, implement the employer’s main responsibility for occupational disease prevention and control, improve the working environment, strictly control dust and toxic hazards, strengthen occupational disease prevention and control, fully implement the action of improving urban and rural living environment, and strengthen the construction of public service facilities such as culture, science and education, leisure and fitness. Adhere to the concept of green development, strengthen environmental protection and supervision, implement the action plan for the prevention and control of air, water and soil pollution, implement comprehensive control of pollutants, and continuously improve the environmental air quality, drinking water source quality and soil environmental quality. In accordance with the unified arrangements of the state, cooperate with the establishment of environmental and health monitoring, investigation and risk assessment systems to reduce the impact of environmental pollution on health.(Provincial Development and Reform Commission, Education Department, Environmental Protection Department, Housing and Urban-Rural Construction Department, Water Resources Department, Health and Family Planning Commission, Safety Supervision Bureau and Sports Bureau are responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

2. Improve the policy environment. Accelerate the promulgation of local laws and regulations on smoking control in public places in our province and increase the intensity of tobacco control. Strictly implement the national tobacco and alcohol tax policy and relevant laws and regulations that prohibit the sale of tobacco and alcohol to minors, so as to reduce the harmful drinking of residents. Strengthen food safety, adjust and optimize food structure, advocate dietary diversification, promote nutrition labeling, guide enterprises to produce and sell, and consumers to choose nutritious and healthy foods scientifically. (Provincial Health and Family Planning Commission, Legislative Affairs Office and Food and Drug Administration are responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

3. Increase the creation of demonstration zones for comprehensive prevention and control of chronic diseases. Taking the construction of national and provincial demonstration zones for comprehensive prevention and control of chronic diseases as the starting point, we will cultivate and build a comprehensive prevention and control model for chronic diseases suitable for different regional characteristics. By 2020, there will be 45 provincial-level demonstration zones for comprehensive prevention and control of chronic diseases and 16 national-level demonstration zones. By 2025, there will be 60 provincial-level demonstration zones for comprehensive prevention and control of chronic diseases and 25 national-level demonstration zones. The construction of demonstration areas should be closely combined with the requirements of the establishment of healthy towns and the construction of healthy towns, integrated with graded diagnosis and treatment and contracted services of family doctors, comprehensively improve the construction quality of demonstration areas, play a leading role in strengthening the main responsibility of the government, implementing the work responsibilities of various departments, and providing chronic disease prevention and management services, so as to promote the overall improvement of regional chronic disease prevention and management level.(Provincial Health and Family Planning Commission takes the lead; The state and municipal people’s governments are responsible for the implementation)

(7) Coordinating social resources and innovating to drive the development of health service industry.

1. Mobilize social forces to carry out prevention and control services. Encourage, guide and support medical, physical examination, fitness, old-age care and health care institutions organized by social forces, as well as charitable organizations such as foundations, commercial insurance institutions, industry associations and internet enterprises to participate in medical services, health management and promotion, health insurance and related chronic disease prevention and treatment services in their respective regions through competitive selection, innovate service models, and promote the development of a health service system with full life cycle, rich connotation and reasonable structure. Establish a diversified fund-raising mechanism, broaden the investment and financing channels for public welfare undertakings for chronic disease prevention and treatment, and encourage social capital to invest in areas such as chronic disease prevention and treatment services and community rehabilitation.(Provincial Development and Reform Commission, Civil Affairs Department, Finance Department, Health and Family Planning Commission, Yunnan Insurance Regulatory Bureau is responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

2. Promote the integration of medical care and nursing. Promote the full-course prevention and treatment of chronic diseases, and closely integrate it with home, community and institutional pension. Promote old-age care institutions, communities and residents’ families to carry out health care, prevention and treatment of chronic diseases and rehabilitation care for the elderly, and maintain and promote the functional health of the elderly. Support qualified old-age care institutions to set up medical centers, and qualified general hospitals and traditional Chinese medicine hospitals to set up geriatric departments, increase the number of beds for the elderly, and provide priority and convenient services for the elderly to seek medical treatment. Encourage grassroots medical and health institutions to establish a contract service relationship with the families of the elderly, and carry out services such as on-site consultation, health check-up, health management, and health care. Encourage and guide commercial insurance institutions to actively establish a new type of old-age community integrating medical care and nursing through new construction and equity participation.(Provincial Health and Family Planning Commission takes the lead; Provincial Civil Affairs Department and Yunnan Insurance Regulatory Bureau cooperate; The state and municipal people’s governments are responsible for the implementation)

3. Promote the application of Internet innovations. Promote the integration of Internet and health industry, develop smart health industry, promote the deep integration of mobile Internet, cloud computing, big data, Internet of Things and health-related industries, make full use of information technology to enrich the means and work content of chronic disease prevention and treatment, promote the application of network services such as appointment diagnosis and treatment, online follow-up, disease management and health management, and provide high-quality and convenient medical and health services. Actively explore a new model of chronic disease health management service.(Provincial Industry and Information Technology Commission, Health and Family Planning Commission and Development and Reform Commission are responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

4. Develop the fitness and leisure sports industry. Further optimize the market environment, cultivate multiple subjects, and guide social forces to participate in the construction and operation of fitness and leisure facilities. Promote the formation of a fitness and leisure industry structure with Kunming as the core, focusing on the "Kunming-Dali-Lijiang-Shangri-La" sports tourism development zone, the border cross-border sports industry cooperation zone, the northern mountain outdoor sports sector and the central fitness and leisure sector. Create a number of outdoor sports projects and brands with regional characteristics and independent intellectual property rights in our province, and form a number of sports industry clusters, sports tourism demonstration bases, sports leisure development zones and sports characteristic towns.(Provincial Sports Bureau takes the lead; The state and municipal people’s governments are responsible for the implementation)

(eight) to strengthen scientific and technological support, promote monitoring and evaluation and research and innovation.

1. Improve the monitoring and evaluation system. Integrate the monitoring information of single-disease and single-factor chronic diseases and their risk factors, further strengthen the death cause monitoring, tumor registration and cardiovascular disease reporting system, establish a network reporting platform for chronic diseases and nutrition monitoring information at the provincial, prefecture and county levels, gradually realize the real-time update of information on the incidence, illness, death and risk factors of key chronic diseases, and regularly publish monitoring information about chronic diseases. Take the state and city as the unit, basically find out the main chronic diseases, influencing factors and disease burden in the administrative area. A cohort study on nutrition and chronic disease risk factors, health intervention and disease management was carried out. Use big data and other technologies to strengthen information analysis and utilization, grasp the epidemic laws and characteristics of chronic diseases, identify major health problems, and provide evidence-based basis for formulating policies and strategies for the prevention and treatment of chronic diseases. Strengthen the monitoring of environmental quality, quality and safety of agricultural products, such as water, soil, air and other environmental media and workplaces, gradually realize cross-industry cross-departmental cross-level vertical reporting and horizontal exchange, and dynamically implement risk assessment and early warning of environmental, food and other factors and health. (Provincial Health and Family Planning Commission takes the lead; Provincial Environmental Protection Department, Agriculture Department and Food and Drug Administration cooperate; The state and municipal people’s governments are responsible for the implementation)

2. Promote the transformation of scientific and technological achievements and the application of appropriate technologies. Strengthen the construction of provincial clinical medical research institutions and collaborative innovation networks and improve the research system of major chronic diseases. Guided by the integration of information, biology and medical science and technology, we will strengthen basic research, applied research and translational medicine research on the prevention and treatment of chronic diseases. Coordinate superior forces, promote research on pathogenic factors, pathogenesis, prevention and intervention, diagnosis and rehabilitation, medical devices, new vaccines and innovative drugs of chronic diseases, focus on breaking through key technologies of precision medicine, "internet plus Health Care" and big data, and support the popularization and application of new technologies and products such as genetic testing in the field of chronic disease prevention and treatment. In view of the chronic diseases with advantages of traditional Chinese medicine, this paper summarizes and forms the health intervention scheme of traditional Chinese medicine for chronic diseases and promotes its application. Combined with the needs of chronic disease prevention and treatment, we will select and promote mature and effective technologies for chronic disease prevention, diagnosis and treatment, rehabilitation and health care, and accelerate the transformation and application of results. Carry out research on social determinants and disease burden of chronic diseases, and explore effective ways to prevent and control chronic diseases. Actively participate in the exchange and cooperation in the prevention and treatment of chronic diseases in the aspects of professional training, information communication and sharing, prevention and treatment technology exchange and cooperation, and capacity building.(led by the Provincial Science and Technology Department; Provincial Health and Family Planning Commission, Food and Drug Administration, and Provincial Association for Science and Technology; The state and municipal people’s governments are responsible for the implementation)

Third, safeguard measures

(1) Strengthen organizational leadership. The people’s governments of prefectures and cities should give priority to people’s health, take the prevention and treatment of chronic diseases as the key content of building a healthy Yunnan and deepening the reform of the medical and health system, incorporate them into important livelihood projects, determine work objectives and assessment indicators, formulate local plans and implementation plans for the prevention and treatment of chronic diseases, strengthen organization and implementation, establish and improve the coordination mechanism for the prevention and treatment of chronic diseases, and regularly study and solve major problems in the prevention and treatment of chronic diseases.(State and municipal people’s governments are responsible)

(2) Implementing departmental responsibilities. Health and family planning departments should jointly organize the implementation of this plan with relevant departments and carry out supervision and evaluation. The financial department should implement the relevant funds in accordance with the requirements of the government’s health investment policy. The department of human resources and social security should further improve the relevant outpatient security policies and payment mechanisms, and give play to the role of medical insurance in controlling fees. Comprehensive coordination institutions for the prevention and treatment of major diseases at all levels should play an overall coordination role, and promote the departments of industry and information technology, education, science and technology, civil affairs, human resources and social security, environmental protection, urban and rural housing construction, agriculture, sports, safety supervision, food and drug supervision at the same level to perform their duties, thus forming a joint force for the prevention and treatment of chronic diseases.(The office of the joint meeting of the provincial prevention and control of major diseases takes the lead; The members of the joint meeting of the provincial prevention and control of major diseases are responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

(3) Strengthen personnel training. We will improve policies and measures conducive to the training and use of talents, and strengthen the training of talents in the fields of health education, health management, medical care, public health, nursing, rehabilitation and Chinese medicine. Strengthen the cooperation between doctors and teachers, deepen the educational reform in colleges and universities, strengthen the education and training of medical students’ knowledge and ability in the prevention and treatment of chronic diseases, support the establishment of health promotion, health management and other related majors in colleges and universities, strengthen targeted continuing medical education, and focus on cultivating compound and practical talents in the prevention and treatment of chronic diseases. Improve the evaluation system of professional and technical titles, and promote the growth, development and rational flow of talents.(The Provincial Department of Education, the Department of Human Resources and Social Security, and the Health and Family Planning Commission are responsible for the division of responsibilities; The state and municipal people’s governments are responsible for the implementation)

(4) create a good atmosphere. All localities and departments should widely publicize and maintain the major strategic ideas, principles and policies to promote people’s health, and publicize the great significance, objectives, tasks and strategic measures of implementing the comprehensive prevention and control strategy for chronic diseases. It is necessary to strengthen positive publicity, public opinion supervision, scientific guidance and typical reports, enhance the general understanding of the prevention and treatment of chronic diseases in society, and form a good atmosphere in which the whole society cares for and supports participation in the prevention and treatment of chronic diseases.(Provincial Health and Family Planning Commission takes the lead; Provincial Press, Publication, Radio, Film and Television Bureau and Information Office cooperate; The state and municipal people’s governments are responsible for the implementation)

Iv. supervision and evaluation

Relevant departments should perform their respective duties according to the division of tasks, keep abreast of the work progress, exchange information regularly, jointly carry out supervision and effect evaluation, conduct a mid-term evaluation of the implementation of the plan in 2020, and organize a final evaluation of the implementation of the plan in 2025. States and cities should establish a supervision and evaluation mechanism, organize and evaluate the progress and effect of planning implementation, regard the implementation of planning as an important matter of government supervision and supervision, and promote the implementation of planning objectives and tasks.(The office of the joint meeting of the provincial prevention and control of major diseases takes the lead; The member units of the joint meeting of the provincial prevention and control of major diseases cooperate; The state and municipal people’s governments are responsible for the implementation)

　　When the summer heat hits the midsection, the weather is so hot that there is nowhere to hide. In the hot sauna days, eating crayfish and drinking a glass of cold beer, not to mention how pleasant it is, but recently people dare not enjoy it so much because of some rumors.

　　The "classification map of crayfish after death" transmitted by the internet has made many people ask their souls: "Delicious and attractive crayfish, what kind of garbage are you?" After that, the takeaway order of crayfish was silently cancelled; And the saying that "you can’t drink cold drinks in dog days, you have to drink hot water to force the cold" has made some people put down the bottles of iced beer.

　　Are we destined to have a tasteless summer? The reporter of Science and Technology Daily interviewed relevant experts, shattered the rumors one by one, and gave you a cool summer as usual.

　　Proverbs 1

　　Lobster meat is wet garbage and lobster head is dry garbage.

　　It’s the season to eat crayfish again, but since many places in the country have entered the "mandatory era" of garbage sorting, and a "classification map of crayfish after death" has been posted on the Internet, crayfish lovers are no longer afraid to eat without scruple. According to the classification map, the whole crayfish is wet garbage, and the yellow lobster head is dry garbage; Lobster meat and lobster yellow are wet garbage, and lobster shells are dry garbage.

　　Many netizens said that eating crayfish is refreshing for a while, but after eating it, the garbage classification is heartbroken, so don’t eat it. In fact, throwing a crayfish is not as complicated as the picture. This picture is wrong.

　　Shanghai Waste Management Office responded through WeChat WeChat official account that crayfish, lobster shell, lobster head, lobster yellow and lobster meat all belong to wet garbage.

　　In April 2019, the "Guidelines for the Classification of Domestic Waste in Shanghai" also clearly pointed out that aquatic products and their processed foods (fish, fish scales, shrimp, shrimp shells and squid) are all wet wastes.

　　"It is not difficult to distinguish between dry and wet garbage. Dry garbage refers to garbage that can be burned, and wet garbage is garbage that is perishable, easy to crush and compostable. It is a bit taken for granted that crayfish shells are classified as dry garbage in the above classification map. In fact, it is relatively easy to rot and crush, so it belongs to wet garbage. " Yi Zhu, an associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University, explained.

　　If you still can’t tell what kind of garbage is on your hand, remember the official recommendation of Shanghai for garbage classification: recyclable materials — — Glass, gold, plastic, paper and clothing; Harmful waste remembers the formula — — Medicine (oil) (electric light); The principle of wet garbage recording — — Perishable and easy to crush; The rest is dry garbage.

　　Proverbs 2

　　You can’t eat cold drinks in dog days, but drink hot water to force the cold.

　　Cicadas sound, summer is strong, and the heat in the dog days seems to be dependent on cold drinks. However, a recent health tip circulating on the Internet pointed out that all iced drinks should be rejected in dog days, otherwise the cold will invade and cannot be discharged. Insist on drinking hot water in the dog days, so as to force out the cold that goes deep into the bone marrow. This is called treating winter diseases in summer.

　　At first glance, there is some truth, but is this really the case?

　　The doctor reminded that the statement that "don’t drink iced drinks and eat iced food" on the dog days is too absolute. In fact, for most people, there is no problem of completely avoiding cold drinks, and eating some cold drinks properly will not cause harm to the body.

　　Li Fangling, chief physician of Chinese Medicine Department of Beijing Geriatric Hospital, told the media: "In summer, the temperature is too high for people to stand. At this time, eating moderate cold drinks can relieve the heat and make people feel comfortable."

　　However, Yi Zhu also pointed out that drinking ice water when it is very hot will cause rapid contraction of blood vessels, and the oxygen consumption of heart, brain and other organs will increase, which will cause blood pressure fluctuation, especially for the elderly with cardiovascular and cerebrovascular diseases. For young people, eating ice cream and drinking iced drinks in dog days may lead to sudden headaches. And eating too much cold food can also cause gastrointestinal cramps and diarrhea. "Therefore, we do not encourage unrestrained use of cold drinks to relieve the heat in the dog days." She said.

　　However, the theory that drinking hot water can force out the cold is not recorded in Chinese medicine. "Although it is not advisable to be greedy and cold in the dog days, it is a bit exaggerated and there is no scientific basis to force out the cold that has penetrated into the bone marrow for many years by drinking hot water in the dog days. The way to maintain health advocated by Chinese medicine lies in persistence all year round, and improving physical fitness is not a one-off event. " In Yi Zhu’s view, drinking hot water in summer is generally suitable for people who need to sweat because of a cold, but drinking overheated water will also cause damage to the digestive tract mucosa, and it is advisable to drink warm water in small quantities for many times in hot weather.

　　Proverbs 3

　　Famous biologists have developed cold-resistant mosquitoes.

　　The most annoying thing in summer is mosquitoes besides the high temperature. People are afraid to avoid this annoying creature, but a screenshot of a recent report on the emergence of cold-resistant mosquitoes surprised netizens. The report said: Professor Li, a famous biologist in China, has worked hard for more than 30 years and successfully cultivated cold-resistant mosquitoes. This mosquito can also come out to bite people in winter, which fills the gap that there are no mosquitoes in winter in China … … The source of the article also marked the authoritative media, but the description of the article made people feel incredible. Some netizens joked: "We don’t need mosquitoes in winter, so it’s better not to fill this gap."

　　According to the reporter’s review, the authoritative media marked at the source of the article has never reported it at all. This is actually an old story full of plastic sense. This paragraph first appeared in 2014, and the version has been iterative since then.

　　In fact, there are many loopholes in the above rumors that can be seen at a glance. For example, it is impossible for authoritative media reports to have the nonstandard title of "Professor Li, a famous biologist in China". Moreover, from the scientific common sense, it is not uncommon for mosquitoes to appear in winter, and experts have already made popular science. Mosquitoes are at the temperature of 15℃— The vitality is still very strong at 16℃. Even in winter, if the indoor temperature is high, it can wake up the dormant mosquitoes.

　　Proverbs 4

　　Common genes in genetically modified crops appear in China.

　　Recently, many WeChat groups are spreading an article — — British Research: Genes common in genetically modified crops have appeared in China, please be careful of the next generation. Accordingly, some WeChat WeChat official account articles with 100,000 hits vowed to write: "This is another proof of the harm of genetically modified weapons to Chinese."

　　Is this really the case? That’s not true. This is actually a patchwork of fishing articles and rumors about genetically modified foods, which is an advertisement for the platform of non-genetically modified food grocery stores.

　　According to this article, an article published in the British academic journal Shelley Genetics Newsletter has attracted the attention of domestic academic circles. Professor Victor Stein, a geneticist from the German Tesrosa Medical Center, is currently conducting an international genomics research project in China … …

　　Lin Min, a researcher at the Institute of Biotechnology, Chinese Academy of Agricultural Sciences, said that there was no British academic journal Shelley Genetics Newsletter, and the so-called Tesrosa Medical Center was also invented.

　　The article also said: "Almost all genetically modified foods contain SCoAL gene." "SCoAL will synthesize succinic acid in the human body, which is highly acidic and corrosive and may cause blindness when it enters the eyes."

　　However, Jiang Tao, a senior engineer at the Biology Research Center of the Institute of Genetics and Development, Chinese Academy of Sciences, pointed out that the gene name SCoAL was concocted.

　　"And succinic acid, also known as succinic acid. Nutritional supplements containing succinic acid are food additives and dietary supplements, which are approved as edible safety by the US Food and Drug Administration. All living things produce succinic acid. " Lin Min said.

On February 19th, Meituan announced that it would pay social security for full-time and stable part-time riders nationwide, which is expected to be implemented in the second quarter of 2025. Meituan said that it will continue to increase resources and capital investment and continuously improve the rider welfare treatment system.

This is another measure taken by Meituan to improve the social security of new employment groups after the online anti-fatigue mechanism and the cancellation of overtime deduction. Since July 2022, Meituan has invested 1.4 billion yuan to pay new occupational injury insurance premiums for riders in seven pilot provinces and cities, and will further cover all riders in all provinces and cities in the future.

With the steady development of the take-away industry, a relatively clear division of professional and part-time groups has been formed among new employees such as take-away riders. Many riders have become stable practitioners after accumulating relevant experience and skills. Providing all kinds of security for these stable employees is not only in line with the real interests of workers, but also conducive to the long-term development of the industry and the formation of a relatively stable and professional distribution group.

Since the beginning of the year, Meituan has continuously introduced a number of measures to strengthen the protection of new employment groups, including canceling overtime deduction and anti-fatigue mechanism on the line, and has built 16,000 rider communities in conjunction with all sectors of society to help riders smooth the distribution path.

　　On June 9th, the crew of the film "Feng Shen Part I" appeared at the red carpet ceremony of the 25th Shanghai International Film Festival. Xinhua News Agency reporter Xin Mengchen photo

　　Xinhua News Agency, Beijing, August 28th (Reporter Leon, Zhang Manzi) As of 22: 00 on August 26th, the summer box office of China film market in 2023 exceeded 20 billion yuan, setting a new record for the summer box office. China’s summer box office jumped from nearly 17.8 billion yuan in 2019 to a new height of 20 billion yuan, injecting more confidence into the recovery of China and the global film industry.

　　China film industry is used to calling the three natural months from June to August every year as summer files. As the first summer file after China adjusted and optimized epidemic prevention and control measures, why did this summer file break the record? Analysts pointed out that cultural consumption, including movies, has gradually recovered. The types and themes of summer movies this year are diverse and rich, and popular works frequently appear, meeting the diverse needs of watching movies.

　　Yu Chao, deputy general manager of Capital Cinema, has the most outstanding feeling that "there are more outstanding films".

　　According to the data of the Lighthouse Professional Edition of the film data platform as of the morning of August 27th, the suspense film "She Disappeared" and the crime film "Put All Your Eggs on One Egg" ranked first and second in the summer box office list with 3.5 billion yuan and 3.3 billion yuan, followed by the mythical epic film "Goddess Part I" and the realistic film "The Octagon Cage", with box office of 2.4 billion yuan and 2.2 billion yuan respectively.

　　On April 21st, the cast members of "She Disappeared" were at the red carpet ceremony for the opening of the 13th Beijing International Film Festival. Xinhua News Agency reporter Chen Zhongyu photo

　　In the eyes of the industry, such a box office array is more healthy and stable than the box office champion of previous years, and the box office of the second or third place on the list has dropped to more than 1 billion yuan, showing that the overall quality of this summer’s movies is higher.

　　Chen Xuguang, director of Peking University Film and Television Drama Research Center, believes that the biggest feature of this year’s summer file is that the types and themes of films are more diverse, meeting the needs of audiences of different ages, "instead of simply focusing on student groups as before".

　　There are movies based on myths, legends and history, such as "The First Goddess" and "Three Wan Li in Chang ‘an", and there are movies with realistic themes, such as "Put all your eggs in one basket" and "In an octagonal cage", which play the role of "window" and let the audience better understand the society and protect themselves.

　　A good box office first stems from the excellent quality of the film. "China filmmakers pay more attention to ‘ Use money on the cutting edge ’ It also pays more attention to the quality of movies, and a number of domestic masterpieces have emerged. " Chen Xuguang said that there are a large number of movie audiences in China, and the types of movies should be as diverse as possible. "We are not afraid of no audience, but we are afraid that there are not enough good works.".

　　From June 21st to August 27th, the single-day box office of China film market broke through 100 million for 68 consecutive days, reaching a new high. Chen Jin, a data analyst of Lighthouse Professional Edition, pointed out that this sustained and stable box office performance has laid a sufficient foundation for the market to restore confidence, and the film industry has obvious signs of accelerating recovery. As of the afternoon of August 27th, the total number of screenings of this year’s summer file reached 33.7 million, setting a new record for the summer file.

　　The top six films in China’s summer box office this year are all domestic films, accounting for about 70% of the total box office. "Both the audience and the upstream and downstream of the industry have more confidence in the China film market after this summer file." Chen Jin said.

China has 41,179 movie screens, ranking first in the world.

　　In 2016, the total box office of national movies was 45.712 billion, up 3.73% year-on-year. Compared with the growth rate of 48.7% last year, the good momentum has come to an abrupt end. In addition to the steady growth in the first quarter (Spring Festival file) last year, the box office was negative for five months in the next nine months.

　　Nearly 60% of the films made were not released.

　　In 2016, the number of cinema visitors in the city was 1.372 billion, an increase of 8.89% year-on-year. The growth rate of movie attendance is greater than that of box office, indicating that the average fare has decreased, and the national average fare is about 33.32 yuan.

　　In 2001, there were 84 films with box office exceeding 100 million yuan, including domestic movie 43 films. The box office of domestic films was 26.663 billion, accounting for 58.33% of the total box office, once again exceeding that of imported films. This year, many imported films are actually sponsored by domestic investors, such as Kung Fu Panda 3, Crouching Tiger, Hidden Dragon 2, or participated in the project, such as Warcraft, Bourne ultimatum 5, Star Trek 3, revenant, Hacksaw Ridge, Billy Lynn’s Long Halftime Walk and Nine Lives.

　　In the whole year, 772 feature films, 49 animated films, 67 science and education films, 32 documentary films and 24 special films were produced, totaling 944. Among them, less than 400 films have been shown in cinemas, accounting for 42%. In other words, nearly 60% of the films made have not been shown.

　　In 2016, there were 1,612 new cinemas and 9,552 new screens. At present, the total number of screens in China has reached 41,179 (more than 7,600 cinemas), surpassing the North American market (about 39,000) and becoming the country with the largest number of movie screens in the world. Last year, the number of screens in the world increased by 11,260, an increase of 8%, totaling 152,000. Among them, the number of screens in China increased by 8035, accounting for 71.36%. Judging from the changes in the past two years, the proportion of China’s screens in the world should be 21%-25%.

　　Hollywood blockbusters rely on China to attract gold.

　　In 2016, 724 movies were released in North America, with a box office of $11.25 billion, which was basically the same as last year. In fact, for many years, the mature North American market has maintained a stable state, and the number of people watching movies and the box office have not increased or decreased by more than 10%.

　　Therefore, overseas, especially China, has become a key market for major Hollywood film companies. Hollywood has been doing well, too. Many blockbusters have far more overseas box office than those in North America. For example, Captain America: Civil War, which has the highest box office in the world this year, has 64.6% overseas box office. For example, Kung Fu Panda 3 and Warcraft, the overseas box office accounts for 72.5% and 89.1% respectively. And a large part of these overseas box offices are sold in China. For example, the box office of Warcraft in China is as high as 1.472 billion RMB, which is equivalent to 212 million US dollars at the current exchange rate, accounting for 55% of the overseas box office of 386.3 million US dollars.

　　Because the China market is too big, the box office of a Mermaid in Stephen Chow is as high as 3.393 billion, ranking 12th in the global box office list in terms of US dollars. Compared with China, its North American box office is only $3.23 million, accounting for 0.6% of the global total box office. (According to Sohu)

Native tree species refers to the natural distribution of trees in this area or the long-term growth of local trees. National Forestry and Grassland Administration recently released that China actively adopts native tree species and grass species to carry out afforestation and greening. At present, all the artificial afforestation in China basically uses native tree species.

National artificial afforestation basically uses native tree species.

Since 2021, National Forestry and Grassland Administration has approved 47 improved varieties of forest trees, all of which are native species. At present, 670 indemnificatory nurseries have been built in China, focusing on cultivating fine varieties and strong seedlings of native broad-leaved tree species, shrub species and high-quality economic forest species, with an additional seedling production capacity of nearly 100 million plants, thus ensuring the demand for native tree seedlings for national greening.

In promoting the construction of forest cities, National Forestry and Grassland Administration requires that native tree species should be the main species, and the utilization rate of urban native tree species should reach more than 80%, so as to increase the application of native tree species and grass seeds in urban greening.

National Forestry and Grassland Administration has instructed 29 provinces to issue a list of main native tree species, and made clear the suitable areas and suitable greening types of native tree species, which provided a basis for popularizing the use of native tree species. The "Reference List of Major Cultivated Precious Tree Species (2022)" was issued to guide all localities to actively cultivate local precious tree species.

Wangkui, Heilongjiang: Native Tree Species in Urban Greening and Forestry Engineering "Playing the Leading Role"

Wangkui County, Suihua, Heilongjiang Province, is an important commodity grain base in China and a key area for the construction of the "Three North" shelter forest system project. The local area combines urban greening with key forestry projects, afforesting according to local conditions, and building ecological barriers with native tree species.

CCTV reporter Shi Yuyu:The tree species used in the "Three North" shelter forest in Wangkui County, Suihua City, Heilongjiang Province is the native tree species Larix gmelinii, which has the characteristics of evergreen all the year round and tall trees, and can provide effective shelter for the farmland next to it.

Entering Wangkui County, a series of "landscape green corridors" came into view. Since it was incorporated into the "Three North" shelter forest construction project system, according to the long, cold and dry climate characteristics of northeast winter, the local area mainly planted native tree species with cold resistance, drought resistance and easy growth, and the utilization rate reached over 90%.

Zhang Jingbing, director of afforestation station of Forestry and Grass Bureau of Wangkui County, Suihua City, Heilongjiang Province:In the past, there was no such shelter forest. Because the wind blew our corn down, this phenomenon was called "wind scraping the ground". Now, with the shelter forest, this "wind scraping the ground" phenomenon has been greatly reduced.

After years of "Three North" shelterbelt construction, the farmland shelterbelt area in Wangkui County has reached 4,900 hectares, effectively sheltering 135,000 hectares of farmland, accounting for more than 95% of the county’s farmland area.

Not only did the "Three North" project choose native tree species, but also Wangkui basically used native tree species in urban greening. With the goal of "the city is in the forest, the road is in the green, the building is in the garden, and the people are in the landscape", the local green garden projects such as Wangkui Botanical Garden have been implemented.

Wang Shuqi, Deputy Director of Wangkui Garden Construction Service Center, Suihua City, Heilongjiang Province:The Botanical Garden covers an area of 450,000 square meters, all of which are local varieties, including spruce and Pinus sylvestris var. mongolica. It adapts to the local climate and grows vigorously.

At present, the urban greening coverage rate in Wangkui County is 40.38%, ranking first in Pingyuan County of Heilongjiang Province.

Sun Chenggang, Deputy Director of Wangkui Garden Construction Service Center, Suihua City, Heilongjiang Province:In combination with the construction of the "Three North" shelterbelt project, we adhere to the principle of respecting nature and adapting trees in suitable places, giving priority to the selection of excellent native tree species, so that urban residents can feel real benefits.

Shijiazhuang, Hebei province: strengthening scientific research and cultivation to improve the quality level of native tree species

In Shijiazhuang, Hebei Province, the research and application of local native tree species have been strengthened, new tree species and new strains have been cultivated, and the quality level of local tree species has been continuously improved.

The recent high temperature weather in North China has made the Woods in the park a good place for many citizens to enjoy the cool.

Shijiazhuang citizen Li Xupeng:The park is also tree-lined. Even in a high temperature day of more than 30 degrees Celsius, you won’t feel particularly hot and sunburned if you come here for a walk and enjoy the cool.

Shijiazhuang citizen Qiao Jing:Because its flowers in spring are very beautiful, I was attracted by this flower, and then I looked it up and found it was called a neem tree.

The neem tree mentioned by the citizens is an ancient native tree species, which was recorded in Qi Min Yao Shu in the 6th century A.D. and widely distributed in northern China.

However, in the long-term growth and development process, problems such as single variety and loose wood have also appeared in neem. In order to fully explore the excellent characteristics of this ancient native tree species, foster strengths and avoid weaknesses, a "research team for the development and application of neem germplasm resources" was established in the local area.

Tian Guoying, Dean of Shijiazhuang Agricultural and Forestry Research Institute, Hebei Province:Together with China Academy of Forestry, Hebei Normal University and other scientific research units and universities, we formed a research team to excavate and utilize the native tree species Melia azedarach, and cultivated 8 new varieties and strains successively.

Nowadays, in Shijiazhuang, there are more than 20 native tree species such as Melia azedarach, which are widely used. These native tree species have strong adaptability and resistance to the local growth environment, especially to extreme low temperature or high temperature. At the same time, it is easy to plant and has a high survival rate, which can maximize its own characteristics and meet the greening effect.

Fangchenggang, Guangxi: Casuarina equisetifolia, the "guardian of the sea", greening the city and coast.

Fangchenggang, Guangxi, located at the southernmost tip of Chinese mainland coastline, is a typical coastal city with Beibu Gulf in the south. Usually, the wind and sand in coastal cities are relatively heavy, so greening should not only pay attention to beauty, but also consider wind and sand fixation. Casuarina is an excellent tree species with three characteristics. Let’s get to know it together.

On the sea side of the West Bay in Fangchenggang City, Guangxi, rows of Casuarina trees grow along the coastline, forming a shelterbelt and a unique urban landscape. Casuarina equisetifolia is an evergreen tree of Casuarina, which is salt-tolerant and sand-resistant. It is a pioneer tree species in coastal shelterbelts and is known as a loyal "guardian of the sea".

Zhong Yu, Head of Garden Department of Fangchenggang City Management Supervision Bureau, Guangxi:Because its root system is very developed, it has a very good protective effect on wind, and its leaves are very thin, and it is a scale leaf, so its demand for water is much smaller than that of other broad-leaved trees, so its wind-proof and sand-fixing ability is very good.

Not only that, Casuarina grows rapidly, with a height of 30 meters. Coupled with its beautiful tree shape, Casuarina is also used as a street tree and has a good performance in urban greening.

Su Xuepeng, Director of Nursery of Forest Seed Breeding Center in Fangchenggang City, Guangxi: Especially in our coastal city, if it is a seawall or a beach, this kind of Casuarina tree is really beautiful.

According to the data provided by the garden department of Fangchenggang City, at present, more than 60% of the urban greening trees in Fangchenggang City are native trees like Casuarina. Because of their strong adaptability and strong resistance to natural disasters, native tree species are gradually showing their value with the increase of dosage.

Zhong Yu, Head of Garden Department of Fangchenggang City Management Supervision Bureau, Guangxi:The salinity and alkalinity in the urban mudflats are very high, and it is very difficult to survive by planting other trees. However, if Casuarina equisetifolia is planted, it can effectively form a certain green barrier, which can effectively increase the green quantity of our coastal cities.

(CCTV reporter Shi Yuyu Liao Wei, Liu Chang Suihuatai Shijiazhuang Taiwan)

　　What do you think of when you mention sinkholes? Mysterious, dark, strange and exotic animals and plants. The discovery of the Hanzhong Tiankeng Group in Shaanxi, China in recent two years has attracted the attention of the world. Tiankeng Group has become another beautiful business card in Hanzhong after the Han culture of "Two Han and Three Kingdoms".

　　The discovery of the sinkholes in Hanzhong increased the number of sinkholes in China from 84 to 138, accounting for 39%, and increased the number of sinkholes discovered and confirmed in the world from 117 to 171, accounting for 31.6%, making it a well-deserved "first sinkhole group in the world". Jean Bottazzi, an internationally renowned cave explorer, praised the Shanjiayan Cave River Tiankeng in Ningqiang, Hanzhong as "the most beautiful Tiankeng in the world".

　　On March 13th, the academic seminar of Tiankeng Group in Hanzhong, Shaanxi Province, hosted by Shaanxi Geological Survey Institute, was held in Xi ‘an. Famous experts, scholars and government officials from home and abroad discuss practical issues such as the future development mode, protection and development strategy of Hanzhong Tiankeng Group, and plan the blueprint for the future road of Hanzhong Tiankeng Group.

　　The other side of the beauty of Hanzhong in Tiankeng Group

　　When it comes to Hanzhong, the mysterious, beautiful and unknown sinkholes will show another side of Hanzhong. Let the ancient Hanzhong be more aura and beautiful than the rigid and serious history.

　　What is a sinkhole? Luo Gan Zhou, director of Shaanxi Geological Survey Center, gave his own answer to this question in a relatively easy-to-understand language. Tiankeng refers to a geomorphological feature that the steep walls around it have a certain scale (generally more than 100 meters in depth and width) and develop in carbonate rock areas.

　　"It is inferred that the sinkholes in Hanzhong Tiankeng Group were formed 180,000 to 120,000 years ago, and the oldest can be traced back to 680,000 years ago. By studying the sinkholes, we can study the ancient geographical environment and climate, which can help us better understand the past. Unique terrain and special ecological environment under negative terrain are the best places for people to understand geological and climate changes. " Luo Ganzhou expressed the significance of tiankeng to the contemporary era.

　　Li Yichao, a senior engineer of Shaanxi Geological Survey Institute who has been engaged in tiankeng investigation for a long time, went deep into the bottom of tiankeng for exploration and research many times. Speaking of the exploration of the Tiankeng Group in Hanzhong, Li Yichao has endless stories. Interest and hardship coexist, and the tiankeng, which is rare on weekdays, is really charming but full of challenges.

　　"Most of the traffic in tiankeng is not very convenient. After getting off the bus, the team members have to carry more than 100 kilograms of equipment and food to walk for five or six hours. Generally speaking, we may walk for two minutes at most at a distance of more than 300 meters, but it will take more than an hour to go down the sinkhole. It takes more time to get up, it takes more than three hours to get up, and you can only get up and down with the help of lifting and rescue equipment. The degree of hardship can be imagined. Professional climbing gloves, our team members can wear out three pairs a month. It can be seen that this is difficult. The investigation is very hard, but our contribution is worth it. " Li Yichao said.

　　Luo Gan Zhou Xiang told Uncle Fang a little detail: "Once I went down the sinkhole, the road was very steep. I walked downhill for several hours, and my toenails were against my shoes. When I got back, I felt that my toenails were very painful and the color was a little black. A few days later, the toenail cover of my big toe fell off directly, which was particularly painful." Luo Ganzhou, who is over 50 years old, speaks lightly, but the dangers and pains may only be known to him.

　　Of course, the hardships are also full of fun. The light in the sinkhole is insufficient, and the darkness is beyond imagination. When two people sit face to face, they don’t move, and you may not feel anyone around you. But in the sinkhole, you can see transparent fish, meet all kinds of strange animals and plants, strange stalactites, and all kinds of strange geological structures and climate phenomena that are hard to see on weekdays.

　　Through many photos taken by investigators, it is not difficult to find that there are many spacious cave halls, mysterious and strange underground rivers, magnificent stalactites, stalagmites, edge stone dams and many other ingenious works from nature. For thousands of years, a unique primitive microclimate has been formed in the sinkhole, and the animal food chain and unique habitat in it are irreplaceable. In addition to these peculiar geological products, there are many animals and creatures, among which thousands of richness such as "Shafei Colored Grey Butterfly", "Blooming Pink Butterfly", "Elephant Cicada", "Green Scarab" and "Liliaceae Big Lily" were photographed by the respondents alone.

　　Flying cats are unique animals in Hanzhong Tiankeng. The flying cat’s scientific name is the flying squirrel, also known as "six unlike". It has a face like a fox, eyes like a cat, a rat with a pointed mouth, ears like a rabbit, paws like a duck, and a tail like a squirrel. Its wide fins between the front and rear legs can glide between cliffs and trees, with a maximum head and tail length of 1 meter and a weight of more than 7 kg. This kind of animal is very shy. It lies in the daytime and comes out at night. In addition, it is increasingly rare. It is not easy to see a living flying cat with one’s own eyes.

　　It is understood that the Hanzhong Tiankeng Group is the first tiankeng group with the highest latitude in the world discovered in the range of 32 ~ 33 north latitude. This discovery has important scientific value and fills the gap in the world karst geology research. There are 54 Tiankeng Groups in Hanzhong discovered this time, which are mainly distributed in Chanjiayan Town, ningqiang county, Hanzhong City, Xiaonanhai Town, Nanzheng County, Luojiaba Town, Xixiang County and Sanyuan Town, zhenba county. This discovery has increased the number of sinkholes in the world from 117 to 171, accounting for 1/3 of the global number of sinkholes, including 2 super sinkholes, 7 large sinkholes, 45 conventional sinkholes and 473 other geological relics.

　　Academician Yuan Daoxian of Chinese Academy of Sciences believes that the Hanzhong Tiankeng Group is located at latitude 32-mdash; — It was discovered for the first time in the range of 33 degrees, which made China moist in the tropics — The boundary of subtropical karst landform area has obviously moved northward, which has important scientific value. Reasonable protection, development and utilization of geological relics resources of Tiankeng Group will play an important role in promoting local economic development.

　　The important value of the discovery of the rare "Tiankeng Group" in Hanzhong lies in that it not only greatly enriches the tourism resources of geological relics in China and even the world, but also fills the blank of karst geology research in the world and increases the original samples of biological research. Through the study of its formation mechanism, conditions and evolution law, it will be of great scientific value to the study of paleogeographic environment and climate change in the north and south of China and even the whole world, and it will be praised by experts as a world-class "natural museum" that rewrites geological history.

　　Ambition to declare world geoparks and natural heritage

　　The geological park selected by UNESCO is a natural park with its geological scientific significance, exotic beauty and unique geological landscape, which integrates natural landscape and human landscape. The goal of UNESCO is to select more than 500 geological landscapes worthy of preservation and strengthen protection. At present, 35 geoparks in China have entered the UNESCO World Geopark Network List.

　　Whether it is a geopark or a world natural heritage, it is a leader in the global natural landscape, and its scientific significance and tourism appreciation significance are self-evident.

　　The reporter learned from different channels that at present, all parties are actively preparing for the world geopark and natural heritage declaration for the unique geological relic of Hanzhong Tiankeng Group.

　　The Hanzhong Municipal Government specially issued the Interim Measures for the Protection and Management of Geological Relics of Tiankeng Group in Hanzhong City, which made specific provisions on the scope of geological relics protection, regional management and protection measures, and legal responsibilities. Hanzhong will conscientiously do a good job in the protection of geological relics of Tiankeng Group in Hanzhong.

　　Hanzhong Municipal Bureau of Land and Resources said in a reply that Hanzhong will gradually promote the declaration of national and even world geoparks and natural heritage in due course.

　　It is understood that in October 2016, the Shaanxi Provincial Department of Land and Resources has awarded the provincial geological park construction qualification of Hanzhong Tiankeng Group; According to the provincial geological park planning to complete the construction task, Shaanxi Provincial Department of Land and Resources acceptance before the provincial geological park can be named. Provincial geoparks can only be declared as national geoparks after they are officially named for two years. Hanzhong will do a good job in basic work and declare national and even world-class geological parks and natural heritage according to relevant procedures.

　　Mao Xiaochang, a senior engineer of China Geological Survey, said in his speech that the formation mechanism of Hanzhong Tiankeng Group is different from that of South Tiankeng Group, and its biodiversity is also unique. Therefore, Hanzhong Tiankeng Group has the conditions to become a world-class in terms of rarity, scientificity, aesthetics and protection.

　　How to make good use of high-quality resources in developing and protecting economically underdeveloped areas

　　Tiankeng is a unique natural wonder, unique to karst conditions. In the natural landscape, it has a series of special tourism ornamental values and sensory attributes, such as rarity, strangeness, precipitousness, grandeur, beauty and unique ecological environment. At the same time, tiankeng always coexists with caves, underground rivers, strange peaks and rocks and other tourism resources, so it is undoubtedly a special super tourism resource.

　　It is understood that Chongqing Xiaozhai Tiankeng was opened to tourists in 1999, and Guangxi Leye Dashiwei Tiankeng Group is in the process of tourism development planning. In the future, the karst tiankeng scenic spot will add a bright spot to the world tourism industry.

　　How can Hanzhong miss such a good opportunity? In May, 2017, Hanzhong Municipal Bureau of Land and Resources and Hanzhong Municipal Bureau of Cultural Relics and Tourism jointly reported the topic to Hanzhong Municipal Government, suggesting that the world-class planning units should be selected, and in accordance with the principle of "development in protection and protection in development", Hanzhong Tiankeng Group’s geological relics protection and tourism development and utilization plan should be actively worked out, combining Tiankeng tourism with new formats such as culture, leisure, recreation, sports and research, and steadily promoting the geological relics protection and tourism development of Hanzhong Tiankeng Group.

　　Faced with such world-class tourism resources, it is reasonable for Hanzhong, which is economically underdeveloped, to have the impulse to develop and utilize it. However, tiankeng resources belong to non-renewable natural heritage resources, and once improperly developed, it will bring irreparable losses.

　　At the seminar, the reporter also heard different voices, but the voice of "protection first and moderate development" still dominated. For Hanzhong, where the economic strength is not strong and the pressure of getting rid of poverty is great, how to use the resources of Tiankeng Group to promote regional economic development and promote the local people to get rich and increase their income has become the main problem faced by the politicians.

　　The reporter had a detailed exchange with the deputy county (district) governors of zhenba county, Nanzheng District and ningqiang county. The conclusion is that everyone wants to use Tiankeng resources to promote the development of county economy, but this kind of utilization must be based on strict protection, and we should avoid rough development and homogeneous development of four counties, and start with high-end tourism and take a sustainable development path.

　　Zhou Qingfu, deputy county magistrate of zhenba county, told reporters that zhenba county will make rational use of Tiankeng, a high-quality resource, publicize Zhenba’s good ecological environment advantages on the basis of strict protection and reasonable planning, develop the Chinese herbal medicine industry around the high-quality ecological environment, and build Zhenba into a high-quality health care, pension, sports and experience base.

　　Wang Jun, the deputy head of Nanzheng District, also put forward his own views on the development of Hanzhong Tiankeng Group. Hanzhong Tiankeng Group should avoid large-scale development and give priority to protection. At present, it is difficult to develop Tiankeng with the ability of counties and districts, and it is easy to cause homogenization. Tiankeng is ecologically fragile and unrecoverable, and its safety is poor, so the development of Tiankeng should take the road of high-quality development.

　　Wang Longqing, chairman of Hanzhong CPPCC, believes that Tiankeng Group is the most precious, valuable and internationally influential resource discovered in Hanzhong so far. Establishing a research base for Tiankeng Group in Hanzhong is beneficial to the investigation, scientific management and development, geological monitoring and protection of Tiankeng Group in Hanzhong. Hanzhong City should take this opportunity, rely on the scientific research base as the platform, fully support the geological exploration work of the Provincial Geological Survey Institute, make overall consideration of the construction of the research base and geological museum, as well as security measures, attract world-class high-level talents to come to China for extensive exchanges, hire international professional teams to carry out development planning, and promote the scientific research and tourism development and utilization of Hanzhong Tiankeng resources in an orderly manner.

　　Mao Xiaochang, a senior engineer of China Geological Survey, also put forward his own views on the development of tiankeng. First, priority should be given to protection, and a high-end tiankeng adventure tour can be explored under the premise of protection. Tiankeng, a tourist resource, is not suitable for large-scale development. The location of the sinkhole should explore the mode of high-end in-depth tour, and professionals can be explored to explain professional geological and geographical knowledge to tourists, so that tourists can fully feel the unique charm of the sinkhole through five or six hours of in-depth tour. In addition, we can try to involve villagers in tourism, and develop some special projects such as geological and cultural villages and towns in the periphery to promote the development of local people.

　　Facing high-quality natural resources development and protection are not contradictory opposites. If we cling to the principle of protection and don’t make rational use of it, it will only be a good opportunity to delay development. If Jiuzhaigou clung to protection and didn’t seek development, it would be difficult to achieve such great achievements in local economic development today. However, development is not a kind of quick success and instant benefit, and it is a rational development path for the protection and local development of Tiankeng Group in Hanzhong to make long-term planning and rational utilization from the perspective of future generations’ long-term development. Presenting the most beautiful side of Hanzhong to the world may be the best protection for Hanzhong Tiankeng Group.

　　Researchers at the University of Colorado recently published the latest research results in the journal Nature Earth Science, pointing out that global warming will have a far-reaching impact on the distribution of wind energy resources around the world. By the middle and late part of this century, the available wind energy resources in the northern hemisphere will be greatly reduced, while the wind energy resources in some areas in the southern hemisphere may increase sharply, and the overall wind power development potential will shift to the south.

　　1. Distribution or transfer of wind energy resources to the southern hemisphere

　　The polar regions are cold and the equator is warm, and the westerly winds prevail all the year round in the mid-latitudes of the northern and southern hemispheres, which is also called thermal wind. In this wind belt, the average wind speed is greater than other places, and a large number of wind energy resources are gathered, covering many countries in the northern hemisphere, including China. Under the background of climate change, the change of mid-latitude westerly belt will directly affect the utilization potential of wind energy resources.

　　The latest research results of the University of Colorado in the United States believe that global warming will have a far-reaching impact on the distribution of wind energy resources around the world. By the middle and late part of this century, the available wind energy resources in the northern hemisphere will be greatly reduced, while the wind energy resources in some areas in the southern hemisphere may increase sharply.

　　Using the simulation results of supercomputer, the researchers discussed the evolution of wind energy resources in two different scenarios of greenhouse gas emission in the future. The first is a medium emission scenario, assuming that carbon emissions reach the highest in the middle of this century and then remain stable; By the end of this century, the concentration of carbon dioxide in the atmosphere is about 1.5 times of the current concentration, and the global average temperature is warming by 1.1 to 2.6 degrees Celsius. The second scenario is a high emission scenario, corresponding to the development mode of slow improvement of energy structure and lack of climate response measures, carbon emissions will continue to increase, the concentration of carbon dioxide in the atmosphere will exceed the current three times by the end of this century, and the global temperature will rise by 2.6 to 4.8 degrees Celsius.

　　The results show that the wind energy resources in the northern hemisphere will be significantly reduced in both moderate and high emission scenarios, especially in the mid-latitude areas including northwest China, Siberia, Northeast Asia, the United States, Canada, Britain and the Mediterranean coast, that is, along the westerly belt of the northern hemisphere. Under the high emission situation, by the end of this century, the wind energy resources from Inner Mongolia to Northeast China will even be reduced by 10% to 20%.

　　The wind energy resources in the southern hemisphere will not change much under the medium emission scenario, but will increase greatly under the high emission scenario. Especially in the high emission scenario, by the end of this century, the wind energy resources in eastern Brazil and northeastern Australia will increase rapidly by more than 40%.

　　2. The reason is that the warming ranges of the North and South poles are different.

　　This difference may be attributed to the fact that global warming affects the evolution of wind belts in the northern and southern hemispheres in different ways. In the northern hemisphere, arctic warming and sea ice melting are a positive feedback process that promotes each other, so that under the background of global warming, polar warming is more obvious; As a result, the temperature gradient between the equator and the polar regions is weakened, and the wind speed in the mid-latitude westerly belt is reduced as a whole. Some simulation results also point out that due to the significant warming at high latitudes, the cold-warm confrontation between the north and south sides of the mid-latitude region is weakened, and the activity of the storm system is reduced as a whole, which is also a reason for the decrease of wind energy resources.

　　In the southern hemisphere, especially in high emission scenarios, Antarctic warming is not as obvious as land warming in central South America, southern Africa and Australia. The temperature gradient between this part of the continent and the ocean at the same latitude increases, which becomes the dominant factor in the change of wind belt intensity. Land warming is faster, land thermal depression is enhanced, land-sea pressure gradient is increased, wind speed is increased, and wind energy resources are increased. Except Antarctica, the southern hemisphere continent is mainly distributed in tropical and subtropical regions, so the overall increase of wind energy resources is also most obvious in tropical and subtropical regions. It is worth mentioning that in the middle and high latitudes of South America and Australia, wind energy resources still tend to decrease, similar to the northern hemisphere.

　　3. The probability of extreme gale in northern Europe has increased.

　　The confrontation between the cold and warm air masses in the north and south is common in the westerly belt, which is also called the front. If there is a small disturbance in the atmosphere, for example, one side of the air mass moves to the other side actively, and the trajectory of the air mass deflects under the action of geostrophic deviatoric force, it will induce a large-scale atmospheric vortex, which is also called frontal cyclone. From the climate point of view, the area where frontal cyclones frequently occur and pass through is the area "located on the storm track", and the average wind speed is usually larger than other areas.

　　But if you want to use wind energy, the bigger the wind, the better. Extremely violent gusts will actually cause damage to windmills. The design of windmills is generally based on the criteria such as the maximum wind that can cope with a few years (for example, 50 years), which is directly related to the statistical data of local climate background.

　　Scientists use supercomputers to simulate northern Europe. The results show that if the global climate warms, the mid-latitude "storm track" will move northward as a whole, and the number of frontal cyclones will decrease, but the intensity of a single storm will increase. As a result, the frequency and intensity of extreme winds in northern Europe will increase. This is not good news for windmills designed according to past climate data standards, and it also means that new wind farms must consider the possibility of withstanding stronger storms in the future.

　　Corresponding to the extreme wind that may increase, the extreme waves at sea will also increase. The research on the future evolution of wind and waves in the North Atlantic shows that the current "once in 20 years" big waves may appear every 4 to 12 years in 2080; The climate simulation of the North Sea in Europe shows that by the end of the 21st century, the average height of waves will rise by 5% to 8%. Because of the limited land space and greater friction resistance, offshore wind power generation is the hot direction of current development; The double test of wind and waves poses a new challenge to the construction of offshore wind farms in mid-latitude areas. However, in areas with lower latitudes, such as the Mediterranean coast, because the storm track moves northward, the wind and waves in the future climate outlook will be reduced.

　　4. Warming is a double-edged sword for high latitudes.

　　In high latitudes or arctic regions, cold weather is one of the reasons that hinder the popularization and application of wind power generation. Windmill blades are exposed to humid air with sub-zero temperature, and once they are frozen, the blades will lose their balance, the resistance will increase, the efficiency of wind power conversion will be reduced, and there are potential safety hazards. According to statistics, in Finland, 9%-45% of windmill stalling events are related to icing. Of course, the problem of icing can be overcome to some extent by designing blades that are not easy to gather ice and snow and using current heating, but it will also make the cost of operation and maintenance higher.

　　Climate warming may be good news for these areas. Supercomputer simulation results show that at the end of this century, the frost period in high latitudes will be obviously shortened and the frequency of icing will be greatly reduced, regardless of the assumed temperature rise. In some parts of Scandinavia, the icing frequency will even drop by 100%. At the same time, because the storm track moves northward, the high latitude zone will be more frequently affected by the frontal cyclone system, and the potential wind energy resources will become more abundant. As a result, some areas that are not suitable for the layout of wind farms may become new territories for opening up wind energy resources in the future.

　　Corresponding to the temperature rise, the permafrost zone in high latitudes will be reduced, which will bring both advantages and disadvantages. First, because the scope and depth of frozen soil layer are reduced, it will be more convenient to lay transmission lines and build wind farms. Secondly, if the frozen soil layer continues to melt, how to design the windmill base becomes a problem, because the stress and support relationship between the windmill and the soil will continue to change, and there will be the risk of lodging if it is slightly unbalanced. How to weigh the gains and losses, reduce risks and expand benefits depends on the wisdom of engineers.

　　Not only for onshore wind farms, but also for offshore wind farms in high latitudes, especially for the region with the fastest growing number of offshore wind farms — — For Europe. The study of future sea ice evolution shows that the number of days covered by sea ice in the North Baltic Sea and the Gulf of Bosnia will be reduced from the current 130-170 days to 0-90 days in the later part of this century, and many areas will not even be frozen all year round. However, the decrease of sea ice will make the foundation stability of offshore windmills worse, and it is more vulnerable to the damage of strong winds and waves. At the same time, rising sea level will also increase the risk that the windmill base will be flooded. However, the melting of glaciers will reduce the salinity of seawater, which will help to slow down the corrosion of seawater to the windmill base and transmission line materials.

　　Extended reading

　　The potential of wind farms such as Jiuquan may decline.

　　At present, the world’s largest wind power base is located in Jiuquan, Gansu, China. By 2012, the installed capacity of wind power has exceeded 6,000 megawatts, which is equivalent to supplying the electricity demand of the whole UK, and this figure is still rising. Gansu is located in the wind energy-rich zone in northwest China-Mongolia, with high wind speed all year round and wind energy density exceeding 150 watts per square meter. It is an ideal place for China to build wind power plants, and it has also played an important role in promoting local employment, taxation and economic development. If the climate warming continues, the potential of wind power in this region is likely to decline, and the potential of existing wind power equipment cannot be fully exerted. Many countries in the mid-latitude zone of the northern hemisphere, including China and the United States, will face the same problems, which will also add more pressure to the realization of human energy conservation and emission reduction goals.

　　The researchers pointed out that the current assessment and layout of wind power generation capacity are mostly based on past climate data statistics, but rarely consider the impact on the distribution of wind energy resources after the future atmospheric circulation changes due to human activities. The new research provides a new reference for the economy and sustainability of wind power plant layout in the future, and for decision makers to measure and plan alternative energy strategies.