The bottom of the Qinghai -Tibet Plateau Natural Disaster has been systematically identified

At the second Qinghai -Tibet Science and Technology Examination Disaster Prevention and Mitigation Academic Exchange Conference held on July 15, Cui Peng, academician of the Chinese Academy of Sciences, said that through the support of scientific research projects, the first system of my country found out the natural disaster of the Qinghai -Tibet Plateau. The rich results of the natural disaster database of the Qinghai -Tibet Plateau are serving the design and disaster prevention and mitigation deployment of major projects and urban construction in the plateau region.

In order to further do a good job of geological environmental protection and ecological construction of the Qinghai -Tibet Plateau, at the exchange conference sponsored by the Ministry of Science and Technology and the Chinese Academy of Sciences, Cui Peng, Xu Xiangde, Xu Weilin and many other academicians and related experts, around the natural disasters and disasters of the Qinghai -Tibet Plateau. The influence and other exchanges have exchanged cutting -edge scientific research results.

Cui Peng said that the research team in the second Qinghai -Tibet science examination revealed the evolutionary mechanism of major disasters under the effect of internal and external dynamic coupling, and established a multi -scale comprehensive disaster risk assessment theory and method; Establish a comprehensive disaster reduction theory and technical system, and raise the macro -level prediction of disaster to refine and dangerous predictions. He proposed that in the future, 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.

How to recognize the precursor signal of the occurrence and development of the Qinghai -Tibet Plateau disaster? At the meeting, Academician Xu Xiangde of the Chinese Academy of Engineering used the perspective of the Dinghai -Tibet Plateau driving mechanism and thermal structure driving mechanism, analyzed the cloud precipitation process of the Qinghai -Tibet Plateau cloud precipitation process, the characteristics of the flow structure, and the cause of rich cloud water resources. The scientific research results of water resources and environment (such as glacier melting and retreat) to climate change response. He said that through the "window" study composed of water vapor vertical transportation of water vapor, the team discovered the "Three Pole Interlock" effect associated with the "Third Polar" Qinghai -Tibet Plateau with the South and Northern and Northern and Arctic water circulation, which expanded the "Asian Water Tower" moisture. The characteristics of the cycle "window effect" and its new cognition on the global impact.

Academician Xu Weilin, Executive Vice President of Sichuan University, pointed out that the effect of mountain floods and sand coupling is an important cause of major casualties and disasters. Only the scientific issues faced in the prevention and control of the floods and sand coupling disasters, revealing the non -balanced water sand coupling in the mountains and rivers in the mountains. Only by the disaster mechanism and critical conditions can we solve the cognitive problems of the risk of disaster and the dynamic mechanism of the "small water disaster" dynamic mechanism that leads to the risk of disaster risks. He said that through the principles of the governance of the floods and sand disasters constructed in the scientific examination, the key technologies of the rhizom and sand disaster engineering governance of the team developed by the team are solving the prevention and control of the floods and sand coupling disasters of mountain floods.

The activity fault of the Qinghai -Tibet Plateau is not only a potential source of earthquakes, but also a severe area of ​​geological disasters. It involves two major issues: earthquake resistance and anti -resistance of major projects. Xu Xiwei, a second -level researcher at the National Natural Disaster Prevention and Control Research Institute of the Emergency Management Department, said that during the scientific examination, the team used drone aviation photography technology and three -dimensional electrical structural detection technology to determine the collision of the southeast edge of the Qinghai -Tibet Plateau to shorten the collision and near the east -west direction. The main activity fault position, sliding rate, large earthquake recurrence, and same shock error volume in the extension areas, side -to -squeezed areas, and boundary sliding areas such as the stretch area, the squeezing area, and the boundary sliding area. Zheng Wenjun, a professor at Sun Yat -sen University, introduced that through the scientific examination, the research results of different time standards and key areas of the northeast of the Qinghai -Tibet Plateau showed that there were three groups of activities in different directions and properties that broke and separated. The latest structural activities of the ministry, the movement deformation of these active plots and the activity of boundary breaks, is directly promoting the birth and occurrence of strong earthquakes in the northeast of the plateau. The interaction between plots (gradually squeezing north and expanded to the east) is the main power mechanism of the peripheral edge of the Payan Kara plot in recent years and the frequent power of strong earthquakes in the northeast of the plateau.

(Source: Chen Ke, author of Science and Technology Daily)

- END -