| 东江流域洪灾风险空间模糊综合评价 |
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| 引用本文： | 刘幸,王兆礼.东江流域洪灾风险空间模糊综合评价[J].中国农村水利水电,2011(5). |
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| 作者姓名： | 刘幸 王兆礼 |
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| 作者单位： | 华南理工大学土木与交通学院,广州,510641 |
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| 基金项目： | 国家自然科学基金重点项目(50839005); 华南理工大学中央高校基本科研业务费专项资金(2009ZM0186) |
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| 摘 要： | 通过分析东江流域形成洪水灾害的主要影响因素,构建了流域洪灾风险评价指标体系,利用层次分析法确定了各评价指标的权重,基于GIS技术运用模糊综合评价方法对东江流域洪水灾害风险进行了综合评价.结果表明:东江流域洪灾风险度最高的地方为河源市区、惠州市区、惠阳区以及龙岗等经济较发达地区;而较安全区域则位于流域中上游经济发展较为落后的山区.评价结果与往年大洪水造成的灾害区域基本吻合,表明基于格网的空间模糊综合评价方法用于洪灾风险评价是可行的,评价结果也是合理的.
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| 关 键 词： | 洪灾 风险评价 模糊综合评价 GIS 东江流域 |
Spatially Fuzzy Comprehensive Assessment of Flood Hazard Risk in the Dongjiang River Basin |
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| LIU Xing
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WANG Zhao-li.Spatially Fuzzy Comprehensive Assessment of Flood Hazard Risk in the Dongjiang River Basin[J].China Rural Water and Hydropower,2011(5). |
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| Authors: | LIU Xing WANG Zhao-li |
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| Institution: | LIU Xing,WANG Zhao-li(School of Civil and Transportation Engineering,South China University of Technology,Guangzhou 510641,China) |
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| Abstract: | By analyzing the main factors of the flood disasters in the Dongjiang River basin on the index system of water,rainfall,runoff,typhoon,elevation,slope,population,GDP,land and road with ArcGIS software,this paper adopts the analytic hierarchy process(AHP) to determine the weights of various factors,and uses fuzzy comprehensive assessment(FCA) to obtain the flood disaster risk maps of Dongjiang River Valley.The results show that: The highest flood disaster risk zones in Dongjiang River Valley include Heyuan C... |
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| Keywords: | flood hazard risk spatially fuzzy comprehensive assessment geographic information systems Dongjiang River basin |
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