Integrated GIS/AHP-based flood risk assessment:a case study of Huaihe River Basin in China

According to the flood risk-influencing hazard of disaster-formatire factors,the stability of hazard-pregnant environment and the vulnerability of hazard bearing body,the indexes of precipitation,runoff,river,terrain,population and economy were considered in this paper.Taking,Huaihe River Basin as the focus area,and county as the administrative unit,both the hazard assessment map and the vulnerability assessment map of the flood disaster in Huaihe River Basin were acquired based on GIS and AHP integrated method.Finally,the comprehensive hazard evaluating map of the flood disaster was drawn by a "plus" model,and corresponding analysis of the risk map was carried out.