Based on RS and GIS technologies,this paper brings forward the construction of database,structure and functions of information system of evaluating losses of flood disaster.

Studies on laws of flood capacity to cause disasters and flood loss in the drainage area of Hongru River;

In this study, flood loss is restricted to tangible damages for each of the major categories.

The author presents the calculation process of city flood disaster loss, which includes the direct loss and indirect loss, discusses the valuation estimate of disaster, and puts forward two methods for estimate of city economic development and the way to calculate the comprehensive increasing rate of flood disaster.

On the basis of researching the fundamental principle of flood control benefits,the flood disaster loss regresses to logarithm function,and the Houghton incomplete mid value integration method is adopted to calculate flood control benefits A satisfactory result can be obtained by using this simple and precise metho

Based on the statistics of extremes,this paper studies the applicability of extremes in calculating hazard risk of flood damage.

From the strategical viewpoint of sustainable development,the great importance of setting evaluation system for economic loss of flood damage is emphasized in this paper.

Based on the characteristics of reservoir s mud-control,this paper advances three methods for calculating the benefit of reservoir s mud-control such as the reservoir capacity loss method,the flood-disaster loss method and the dike reinforcing-fee method.