RS and GIS-based Statistical Analysis of Secondary Geological Disasters after the 2008 Wenchuan Earthquake

作     者：CHEN Jianping LI Jianfeng QIN Xuwen DONG Qingji SUN Yan 

作者机构：The Institute of High and New Techniques applied to Land Resources China University of Geosciences Beijing 100083 China The Beijing Key Laboratory of Development and Research for Land Resources Information Beijing 100083 China China Geological Survey Beijing 100037 China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2009年第83卷第4期

页      面：776-785页

核心收录：

学科分类：081803[工学-地质工程] 070801[理学-固体地球物理学] 07[理学] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 

基　　金：funded by the National Key Technology R and D Program in the 11th Five year Plan of China(No.2006BAB01A08) 

主　　题：secondary geological disaster disaster grade quantitative prediction and evaluation 

摘      要：Using RS and GIS means, this article analyzes the general geological characteristics and the structural belt distribution features in Wenchuan County, Sichuan province, P.R. China as well as the characteristics of the large-scale landslides, mud-rock flows, earthquake lakes, etc., after the earthquake on May 12, 2008. Based on the above work, comprehensive indoor and outdoor research is launched on disaster distribution characteristics and their relationship with earthquakes, terrains, strata, lithology, and structures. Weights of evidence method is utilized to quantitatively analyze and evaluate the spatial distribution of secondary geological disasters after the earthquake occurred. 3 remedying grades for secondary geological disasters are derived from the results of the weights of Evidence, followed by suggestions given to remedy earthquake secondary disasters.