| 重庆市地质灾害孕灾环境分区研究 |
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| 引用本文： | 林孝松,唐红梅,陈洪凯,覃庆梅.重庆市地质灾害孕灾环境分区研究[J].中国安全科学学报,2011,21(7). |
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| 作者姓名： | 林孝松 唐红梅 陈洪凯 覃庆梅 |
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| 作者单位： | 1. 重庆交通大学岩土工程研究所,重庆400074;重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044
2. 重庆交通大学岩土工程研究所,重庆,400074 |
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| 基金项目： | 国家自然科学基金资助(41071017); 重庆市科委重点项目(2008BA0015); 重庆市教委科技项目(KJ100406) |
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| 摘 要： | 为探索重庆市地质灾害孕灾环境分布情况,以重庆市主要地质灾害为研究对象,在分析孕灾因子基础上,选取暴雨强度、地貌条件、地质岩性、年均降雨量、植被覆盖度和地质构造条件等6个因子,构建地质灾害孕灾环境分区指标体系,利用层次分析法(AHP)和专家效度相耦合方法确定各指标权重,并建立孕灾环境综合指数评价模型。在ArcGIS软件平台支持下,以1 km×1 km网格尺寸为单位精细获取各指标分析数据,计算得到各网格孕灾环境综合指数值,并根据该值进行重庆市地质灾害孕灾环境等级区划分。结果表明:重庆市地质灾害孕灾环境综合指数值在43～84之间,孕灾分区主要集中在高易发区和中易发区,其中危险区1.29×104 km2,占总面积的15.62%;高易发区4.42×104 km2,占53.68%;中易发区2.38×104 km2,占28.85%;低易发区0.15×104 km2,占1.85%。
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| 关 键 词： | 地质灾害 孕灾环境 综合分区 地理信息系统(GIS) 重庆市 |
Integrated Zoning of Developing Hazards of Geological Disasters in Chongqing City |
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| LIN Xiao-song,TANG Hong-mei,CHEN Hong-kai,QIN Qing-mei.Integrated Zoning of Developing Hazards of Geological Disasters in Chongqing City[J].China Safety Science Journal,2011,21(7). |
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| Authors: | LIN Xiao-song TANG Hong-mei CHEN Hong-kai QIN Qing-mei |
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| Institution: | LIN Xiao-song1,2 TANG Hong-mei1,2 CHEN Hong-kai1 QIN Qing-mei1(1 Institute of Geotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,China 2 Key Laboratory for Exploitation of Southwestern Resources & Environmental Disaster Control Engineering,Ministry of Education,Chongqing University,Chongqing 400044,China) |
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| Abstract: | Taking geological disaster in Chongqing as a case study,6 factors including rainstorm,geomorphological conditions,geological lithology,average annual rainfall,vegetation coverage and geological-tectonic conditions in Chongqing were selected to construct the index system of environment zoning of hazards developing.The index weight was obtained through the combination of AHP and expert reliability,and the comprehensive index evaluation model for hazards developing environment was built.Supported by ArcGIS,com... |
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| Keywords: | geological disaster environment of hazards developing integrated zoning geographical information system(GIS) Chongqing |
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