Bulletin of Surveying and Mapping ›› 2021, Vol. 0 ›› Issue (11): 21-24.doi: 10.13474/j.cnki.11-2246.2021.332

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Remote sensing monitoring evaluation of ecological environment in debris flow disaster prone area

WANG Xuqing, SHI Yanxin, PAN Jianyong, GUO Yingping, GAO Youlong, WEI Jianpeng   

  1. Center for Hydrogeology and Environmental Geology, China Geological Survey, Baoding 071051, China
  • Received:2020-11-19 Revised:2021-03-31 Online:2021-11-25 Published:2021-12-02

Abstract: Debris flow disaster has a strong destructive effect on ecological environment factors such as vegetation, soil and water in the basin,then how to quickly and effectively monitor the changes of ecological environment in the disaster-affected area is of great significance for disaster prevention and mitigation. In this paper, we take the debris flow disasters in Bailong River as the research object, extract the information of ecological factors from multi-stage remote sensing images, and construct the ecological quality evaluation model. The results show that the remote sensing monitoring based on time series images can effectively describe the regional ecological change before and after disasters, which has practical application value for the ecological monitoring and restoration of geological disaster areas.

Key words: time series remote sensing, ecological environmental monitoring, debris flow disaster, ecological factor, comprehensive index

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