For the first time, what are the research results of disaster prevention and mitigation in the Second Qinghai -Tibet Science Examination of Qinghai -Tibet Plateau in the Qinghai -Tibet Plateau?

Photo Conferry at the News Office of the Ministry of Science and Technology of the Ministry of Science and Technology of the Academic Conference

In August 2017, the second Qinghai -Tibetan examination was launched. Focusing on the geological disaster and ecological environment of the Qinghai -Tibet Plateau, finding the principles of disaster, cognitive distribution, establishment of disaster prevention mechanisms, predicting disaster risks and ensuring regional security are the second Qinghai -Tibet Science and Tibetan examinations that are extremely important but extremely important. In the past five years, what iconic results have been achieved?

On July 15th, at the second Qinghai -Tibet Science and Technology Examination Disaster and Mitigation Academic Exchange Conference, Cui Peng, an academician of the Chinese Academy of Sciences and researcher at the Chengdu Institute of Water Resources of the Chinese Academy of Sciences, said that in this scientific examination, the first system found out the natural disaster of the Qinghai -Tibet Plateau The bottom of the Qinghai -Tibet Plateau natural disaster database was established. At the same time, reveal the evolutionary mechanism of major disasters under the effect of internal and external power coupling, establish the theory and method of multi -scale comprehensive disaster risk assessment, create a fine monitoring and classification early warning system for disaster evolution, build a comprehensive disaster reduction theory and technical system, and put the macro -parts of disaster macro partitions. The forecast is promoted to refined danger forecast. "Research results will serve the deployment of disaster avoidance planning and disaster prevention and mitigation of major projects and urban construction."

On the same day, the participating experts made exchanges and discussions on the research results related to disaster prevention and mitigation, disaster prediction and understanding. Cognitive Qinghai -Tibet Plateau disaster weather and a precursor to development are a key link for disaster weather forecasting warning. Xu Xiangde, an academician of the Chinese Academy of Engineering, analyzed the characteristics of the flow structure of the flowing structure of the Qinghai -Tibet Plateau cloud precipitation process and the cause of enriching cloud water resources from the perspective of the Perspective of the Qinghai -Tibet Plateau and the thermal structure driving mechanism, and revealed the water resources and environment of Asian water towers, such as glacier melting and retreat to climate change. The response proposed the low latitude marine water vapor source and its key water vapor channel characteristics of the Qinghai -Tibet Plateau cloud precipitation process, and described the correlation between climate change and frequent changes in the frequency of heavy rain in the southeast of Tibet. Southeast rainstorm affects characteristics.

After the disaster, the flood and sand coupling effect is an important cause of the disaster caused by major personnel. Xu Weilin, an academician of the Chinese Academy of Engineering and executive vice president of Sichuan University, pointed out that the disaster law of floods and sand coupling is essentially different from pure flood disasters. "Only the scientific issues faced in the prevention and control of the floods and sand coupling in the mountains and sand, revealing the disaster and critical conditions of the non -balanced state water and sand coupling in the mountains in the mountains, can the risk of disaster risks in the mountain flood and sand coupling increase significantly and even 'small water big big big water. The cognitive difficulties of the dynamic mechanism of the disaster, and then establish the simulation method and disaster simulation model of mountain floods, sand coupling motion, and the prediction of flood disasters from traditional water conditions to water sand coupling prediction. "

He pointed out that on this basis, the principle of building mountain floods and sand disasters was constructed, and the key technologies of the development of mountain floods and sand disasters were developed, which could solve the problem of prevention and control of the floods and sand coupling disasters in my country.

Over the years, the Qinghai -Tibet Plateau Glacier frozen soil has accelerated and ablation, which has also triggered a series of natural disasters. Niu Fujun, executive deputy director of the National Key Laboratory of the Northwest Institute of Environmental Resources of the Chinese Academy of Sciences, pointed out that from the perspective of engineering, the response to climate change for many years of frozen soil in the Qinghai -Tibet Plateau is direct and significant. "The scientific examination team has fully investigated the frozen soil and freshened disaster in the entire area of ​​the Qinghai -Tibet Plateau, pays attention to the development trend of major frozen earth engineering diseases, and goes into the inspection of the frozen soil environment in the core area of ​​the plateau. It reveals the fact that the frozen soil area has been frozen and fused in the Qinghai -Tibet Plateau in recent decades. "

In the future, under the effect of warming, active earthquake, and intensifying human activities, the risk of plateau disaster is intensified, and disaster prevention and mitigation face huge challenges and opportunities. Cui Peng said that the research and prevention of the Qinghai -Tibet Plateau disaster should be based on the science of the earth system science, focusing on the disaster mechanism of multi -layer interaction, exploring the risk evolution of the disaster, formation, exercise, and disaster, and creating the evolution of disaster risk evolution. The disaster risk management model and mechanism of the natural process will build a comprehensive monitoring and early warning technical system for disaster disasters to improve the ability to prevent the risk prevention of natural disasters.

At the same time, he also put forward the concept of building the Qinghai-Tibet Plateau cross-circle layer, multiple disasters, heaven-empty-ground-body-body integrated disaster monitoring network, with higher efficiency, more accurate prediction, and more efficient data sharing. Better support the national disaster prevention and mitigation work.

(Source: Journal of China Sciences Yang Chen)

- END -