摘要
近年来各地洪涝灾害频繁发生,严重地威胁人民的生命财产安全,为有效应对风险,减少风险发生所造成的损失,必须进行风险评估。该文通过层次分析与熵权法结合,计算出各个风险指标的权重,与归一化数据相结合,计算出各地区风险大小,为防治灾害提供依据。黄河山东段总体洪涝风险呈现从西北到东南递减态势,从致灾和孕灾方面来看,是从西向东递减的状态;从承灾和防灾上看,没有明显的地区划分;应对洪涝风险要加强经济建设,提高公共预算支出和植被覆盖率,保障人民生活水平。
In recent years,floods occur frequently in various places,which seriously threaten the safety of people's lives and properties.In order to effectively deal with the risks and reduce the losses caused by the risks,risk assessment must be carried out.In this paper,through the combination of analytic hierarchy process and Entropy Method,the weight of each risk index is calculated,and combined with the normalized data,the risk of each region is calculated to provide a basis for disaster prevention and control.The overall flood risk of the Shandong section of the Yellow River shows a decreasing trend from northwest to southeast:Seen from the aspect of disaster causing and gestation,it is decreasing from west to east;seen from disaster bearing and disaster prevention,there is no obvious regional division.In order to deal with flood risk,we should strengthen economic construction,increase public budget expenditure and vegetation coverage,and ensure people's living standards.
出处
《科技创新与应用》
2023年第19期78-81,共4页
Technology Innovation and Application
关键词
层次分析法
熵权法
风险评估
灾害防治
洪涝风险
analytic hierarchy process
Entropy Method
risk assessment
disaster prevention and control
flood risk
