Abstract:

Based on geography information system, methodology of flood and waterlogging disaster risk indexand models of flood and waterlogging disaster risk assessment, the flood risk indexes are calculated and flood risk zoning maps are worked out for every county of Tianjin by using the data of whether stations from 1961 to 2008 and integrating the factors of nature, social economy as well as disaster prevention and reduction in the province. The results indicate that the drought disaster risk was highest due to flat and many rivers in the most of Ninghe, the south of Baodi, the east of Wuqing and the north of Jinghai. While, the flood disaster risk was lowest due to strong anti-disaster ability and low sensitivity index of geo-hazards in Xiqing, Dongli, Jinnan,Tanggu and parts of Dagang.