Study on the Evaluation Models of Direct Economic Losses in Urban Flood Disasters

Based on disaster system theory, flood risk assessment was conducted in regard to natural properties of hazard and environment as well as socioeconomics of hazard-affected bodies. The general process of economic loss evaluation in flood was consisted of two parts, namely the evaluation of pre-disaster value of hazard-affected bodies and the determination of direct economic loss rate in the flood disaster. At last, the evaluation models of direct economic losses in urban flood were established.