The remote sensing dynamic monitoring of the Chinese Academy of Sciences shows that the risk of Wenchuan barrier lake is basically eliminated.

category:Global
 The remote sensing dynamic monitoring of the Chinese Academy of Sciences shows that the risk of Wenchuan barrier lake is basically eliminated.


2018 is the Wenchuan earthquake 10th anniversary, in order to systematically monitor the environmental changes in the earthquake stricken areas and the progress of post disaster reconstruction for the past 10 years, the strategic pilot science and technology project of the Chinese Academy of Sciences, the earth big data scientific engineering, launched the Wenchuan earthquake 10th anniversary remote sensing dynamic monitoring in March. As well as the aerial observation data obtained by aerial remote sensing aircraft and UAV, the dynamic change of Wenchuan after the earthquake is recognized by spatial remote sensing, and the process of ecological environment recovery in the earthquake area is evaluated comprehensively. According to the reporter, this Wenchuan earthquake 10th anniversary remote sensing dynamic monitoring work on the basis of the satellite remote sensing seismic area survey, using aerial remote sensing aircraft and UAV to carry out remote sensing monitoring flight, through the aerial remote sensing system ADS80 professional optical aerial photography phase machine and other high precision data acquisition ability, to the North Scientific observation was carried out in Chuan County, Yingxiu Town, Hanwang town and giant panda habitat. In the major landslides and debris flow disasters, through the monitoring of 5 large landslides, the overall condition of the vegetation cover recovery of the landslides of the large landslides is good as of 2018, and the intensity of the landslide activity shows a obvious decreasing trend. During the 10 years, the Wenchuan earthquake area reduced the activity of geological disasters by adopting corresponding protective measures such as slope cutting, unloading and vegetation restoration. Researchers warn that new landslides and disasters still exist. We need to continue to identify and monitor disaster risks. In the monitoring of weir lake, as of 2013, after 5 years of engineering, natural outburst and overflow scour, in the continuous monitoring of the dynamic changes of 36 weir lakes in the earthquake area, 30 weir lakes had been completely dredged and 6 were not completely dredged, and the researchers used high satellite and aerial remote sensing images to not dredge the weir again. The results of remote sensing monitoring show that the dam is not stable. Researchers believe that the risk of damming Lake in Wenchuan earthquake area has been basically eliminated by 2018, great achievements have been made in the ten years, the ecological environment around the barrier lake has been restored and improved, the biggest dam of Tang Jiashan dammed lake is stable, the downstream river has been dredged, and the earthquake disaster area in Wenchuan has an important journey through the reconstruction design. Travel value. It is suggested that we should further scientifically plan related dammed lakes and develop characteristic tourism. In the field of ecological restoration monitoring, the dynamic monitoring and evaluation of the Wenchuan earthquake area and Sichuan giant panda habitat showed that the coverage of the vegetation after the earthquake increased significantly, and the soil erosion status was gradually improved. It is suggested that ecological restoration measures should be continued to reduce vegetation damage and soil erosion, and to support the sustainable and benign restoration of the ecological environment and the habitat of giant pandas. In the reconstruction of towns and towns in the disaster areas, the researchers analyzed the status of the construction areas in Shifang, Mianzhu and Anxian (now Anzhou District). The results showed that the reconstruction and standardization of the urban construction and the modernization of the public facilities were remarkable, and the surface coverage showed a change from violent to smooth. . It is suggested that the implementation of urban planning should be strengthened to prevent irrational and unscientific construction, and the coordinated design of ecological protection and disaster reduction should be taken into consideration, and the sustainable development capacity of urban construction will be formed. The source of this article: surging news editor: Zhang Haitong _NN9053 In the field of ecological restoration monitoring, the dynamic monitoring and evaluation of the Wenchuan earthquake area and Sichuan giant panda habitat showed that the coverage of the vegetation after the earthquake increased significantly, and the soil erosion status was gradually improved. It is suggested that ecological restoration measures should be continued to reduce vegetation damage and soil erosion, and to support the sustainable and benign restoration of the ecological environment and the habitat of giant pandas. In the reconstruction of towns and towns in the disaster areas, the researchers analyzed the status of the construction areas in Shifang, Mianzhu and Anxian (now Anzhou District). The results showed that the reconstruction and standardization of the urban construction and the modernization of the public facilities were remarkable, and the surface coverage showed a change from violent to smooth. . It is suggested that the implementation of urban planning should be strengthened to prevent irrational and unscientific construction, and the coordinated design of ecological protection and disaster reduction should be taken into consideration, and the sustainable development capacity of urban construction will be formed.