Spatial distribution characteristics of urban waterlogging risk in Tianjin
In recent years, due to global climate changes and the development of urbanization, urban waterlogging disasters are rising in China's cities. As one of the more developed cities in China, Tianjin has experienced rainstorms and waterlogging disasters many times in recent years, which has seriously affected the normal production and life of residents. This paper constructed the waterlogging risk assessment index system of Tianjin from the perspectives of the risk of disaster factors, the environmental sensitivity of developing disasters, and the vulnerability of disaster-bearing bodies. The waterlogging risk assessment model was built, and the analytic hierarchy process was utilized to evaluate the waterlogging risk in Tianjin. On the whole, the high-risk areas of waterlogging in Tianjin are mainly the six districts and Binhai New Area in the city, except for the northern part of Jixian District, which is a low-risk area, and other areas are generally at a medium risk. Through this study, the implementation of resilience upgrading for high-risk areas of rainstorm disasters to improve the adaptive capacity of cities not only has a certain guiding role in the emergency management of urban rainstorm disasters, but also provides a certain reference for improving urban flood prevention capabilities.
urban waterlogginganalytic hierarchy processrisk assessmentgeographic information system (GIS)
万方数据
维普
