Under the background of global warming,the risk of flood disasters faced by cities is increasing day by day.Wuhan is frequently affected by flood disasters,and people′s life and economic development are seriously affected.It is necessary to assess the risk of flood disasters in Wuhan.12 indicators were selected from the three perspectives of hazard factors,sensitivity of disaster-producing environment and vulnerability of the disaster-bearing body.The random forest regression and AHP-CRITIC combined weighting method were used to complete the indicator screening and weight assignment.Finally,the grid data were superimposed according to the weight through the ArcGIS platform to obtain the flood disaster risk assessment results in Wuhan.The results showed that the high-risk areas of flood and waterlogging are concentrated in the central urban area of Wuhan and the northeast of Xinzhou District;Caidian District,Hannan District,Jiangxia District and Dongxihu District are areas with low flood risk;The northern mountain area of Huangpi District is a low risk area,the area near the administrative boundary between the east and the north is a high risk area,and other areas in the territory are medium risk areas.
万方数据
维普
