| 汶川地震诱发次生地质灾害危险性综合评价——以崇州市为例 |
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| 引用本文： | 曹伟超,陶和平,刘斌涛,孔博,孙玉莲.汶川地震诱发次生地质灾害危险性综合评价——以崇州市为例[J].生态学杂志,2011,30(1):170-176. |
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| 作者姓名： | 曹伟超 陶和平 刘斌涛 孔博 孙玉莲 |
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| 作者单位： | 1. 中国科学院水利部成都山地灾害与环境研究所,成都610041;中国科学院研究生院,北京100049
2. 中国科学院水利部成都山地灾害与环境研究所,成都,610041 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZX2-YW-333)资助 |
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| 摘 要： | 汶川地震引发大量次生地质灾害.为识别不同区域发生次生地质灾害的危险性,采用面积加权灾害点密度(HCA)作为指标,分析多种地质灾害诱发因子与灾害程度的对应关系,应用因子分析法实现灾害危险性综合评价,并划分为5个危险性等级.结果表明:基本安全区占总面积的53.61%,多分布于东部平原地区;低危险区多分布于中部丘陵地区;中度...
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| 关 键 词： | 汶川地震 次生地质灾害 影响因子 危险性等级 综合评价 |
Comprehensive assessment of secondary geological disaster risk caused by Wenchuan Earthquake: Taking Chongzhou City as an example |
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| CAO Wei-chao,TAO He-ping,LIU Bin-tao,KONG Bo,SUN Yu-lian.Comprehensive assessment of secondary geological disaster risk caused by Wenchuan Earthquake: Taking Chongzhou City as an example[J].Chinese Journal of Ecology,2011,30(1):170-176. |
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| Authors: | CAO Wei-chao TAO He-ping LIU Bin-tao KONG Bo SUN Yu-lian |
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| Institution: | CAO Wei-chao1,2,TAO He-ping1,LIU Bin-tao1,KONG Bo1,SUN Yu-lian1,2 (1Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China,2Graduate University of Chinese Academy of Sciences,Beijing,100049,China) |
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| Abstract: | Wenchuan Earthquake brought about great amount of secondary geological disaster. To recognize the risk levels of this disaster in different areas of Wenchuan,this paper used post-disaster density of area weighted (HCA) as the index,and analyzed the corresponding relationships between various geological disaster-induced factors and disaster degree,taking Chongzhou City as an example. By using factor analysis to achieve the comprehensive hazard assessment,the study area was divided into five risk levels. The ... |
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| Keywords: | Wenchuan Earthquake secondary geological disaster affecting factor risk level comprehensive assessment |
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