《Tab.1 Index system of flood risk assessment of Cinanfeizuopian flood control protected zone》

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《组合赋权-模糊聚类算法的改进及其在洪灾风险评价的应用》

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The grid units have obvious distribution characteristics of carrier information and accurate spatial positions.With the support of the GIS spatial analysis technology，the 150m×150mgrid is used as the basic unit for the assessment of the Cinanfeizuopian flood control protected zone，and the flood control protected zone is divided into 64 592grids according to the area of the flood control protected zone，the distribution of indexes，disaster characteristics，sizes of townships，and the topographic feature.The indexes are normalized according to the method stated in Section 1.1.The distribution of some assessment indexes of the Cinanfeizuopian flood control protected zone is shown in Fig.3.Correlation analysis is conducted for the indexes.The results show that the correlation coefficients between the assessment indexes are all smaller than 0.9，and the interactions between the indexes are within a reasonable range.