基于层次分析法的盐池县地质灾害危险性评价
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张晓东, 刘湘南, 赵志鹏, 武丹, 吴文忠, 褚小东
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Geological disaster hazard assessment in Yanchi County based on AHP
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Xiaodong ZHANG, Xiangnan LIU, Zhipeng ZHAO, Dan WU, Wenzhong WU, Xiaodong CHU
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表2 评价因子AHP判断矩阵、权重、CR及λmax
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Tab.2 Refers AHP scores of factors, weight, CR and maximum eigenvalue
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| 评价因子 | 地层 | 土壤 | 岩组 | 土地利
用类型 | 降水量 | 坡度 | 坡向 | TWI | SPI | 距河流
距离 | 距道路
距离 | NDVI | 权重 | CR | λmax | | 地层 | 1 | | | | | | | | | | | | 0.093 3 | 0.086 4 | 13.45 | | 土壤 | 1/4 | 1 | | | | | | | | | | | 0.041 7 | | 岩组 | 1/2 | 2 | 1 | | | | | | | | | | 0.065 8 | | 土地利用类型 | 1/2 | 2 | 1/3 | 1 | | | | | | | | | 0.077 0 | | 降水量 | 1/2 | 1 | 1 | 1/2 | 1 | | | | | | | | 0.096 3 | | 坡度 | 4 | 4 | 5 | 3 | 1 | 1 | | | | | | | 0.160 7 | | 坡向 | 1/4 | 1 | 1/3 | 1/3 | 1/4 | 1/2 | 1 | | | | | | 0.030 2 | | TWI | 1/2 | 1 | 2 | 1/3 | 1/4 | 1/4 | 2 | 1 | | | | | 0.050 6 | | SPI | 1/3 | 1/2 | 1/2 | 1/4 | 1/5 | 1/5 | 2 | 1/3 | 1 | | | | 0.028 3 | | 距河流距离 | 4 | 4 | 5 | 4 | 3 | 3 | 5 | 5 | 5 | 1 | | | 0.232 9 | | 距道路距离 | 3 | 3 | 3 | 2 | 1/2 | 1/2 | 3 | 2 | 3 | 1/3 | 1 | | 0.104 1 | | NDVI | 1/4 | 1/3 | 1/4 | 1/5 | 1/5 | 1/6 | 1/2 | 1/4 | 1/2 | 1/5 | 1/3 | 1 | 0.019 1 |
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