基于ANP-熵权-突变级数的区域抗洪能力评估

In recent years, flood disasters have occurred frequently, and heavy rainfall is one of the sources of disasters. It is particularly important to effectively measure the flood resistance capacity of cities. This paper takes the heavy rainstorm in Zhengzhou, Nanjing and Wuhan in 2021 as an example, and based on the statistical yearbook data of provinces in 2021, discusses the flood resistance capacity of three cities. Firstly, 12 evaluation indicators were established in four dimensions, and the combined weights of the indicators were calculated using the ANP method and entropy weight method. Then, the mutation progression method is used to calculate the membership degree of each city and rank its flood resistance capacity. Finally, it was found that among the four dimensions established, the risk of disaster factors was at a poor level, the sensitivity of the disaster environment and the vulnerability of the disaster bearing body were at a poor level, and the vulnerability of disaster prevention and reduction was at a general level. The research results can be used in the comprehensive risk survey of meteorological disasters in various cities, real-time meteorological disaster prevention and reduction, and feasibility demonstration of Megaproject restoration and reconstruction.