淮河流域行洪区洪水风险管理指标体系研究

Study of evaluation index system for flood risk management of flood detention areas in Huaihe River Basin

新时期行洪区的洪水风险管理面临着人口、资源、环境等问题,传统洪水管理模式已经不能满足其要求。采取主客观结合的方法,通过识别行洪区潜在风险,从行洪危险性和受体脆弱性两方面筛选评价指标。以15个淮河干流行洪区为例,使用熵值法确定指标权重,构建了淮河行洪区洪水风险管理指标体系,对行洪区洪水风险管理进行了系统分析。结果表明:新时期淮河流域行洪区的洪水风险管理的重点是提高行洪区承灾能力,降低经济脆弱性和社会脆弱性。

Nowadays,the new problems of 'population','resources' and 'environment' appear in the flood risk management of flood detention areas,so the traditional flood risk management method cannot be applied properly.We identify the potential risks of flood detention areas and screen evaluation indices from the aspects of flood hazard and regional vulnerability,by using objective and subjective methods combined.15 flood detention areas in Huaihe River Basin are taken as an example,the weight of indices are determined by using entropy method,and the evaluation index system for flood risk management of flood detention areas in Huaihe River Basin are established.A systematical evaluation for the flood risk management system of flood detention areas in Huaihe River Basin is conducted.The result shows that the flood risk management of flood detention areas in Huaihe River Basin should be focused on improving disaster bearing capacity and reducing economic vulnerability as well as social vulnerability.