Evaluation of Water Ecological Security in Xiangyang City
Aiming at the problem of water ecological security evaluation,the'Pressure-State-Response'(PSR)model is adopted,and the entropy weight method is used to determine the weight and the comprehensive evaluation value of water ecological security,and the water ecological security level of Xiangyang City from 2012 to 2021 is analyzed and evaluated.The results show that the water ecological security level of Xiangyang City is on the rise from 2012 to 2021,and the water ecological security level has generally undergone a transition from a medium warning state to an early warning state.It is safer or safer in years with abundant precipitation,but there is still an unsafe risk in normal and dry years.In order to ensure the water ecological security of Xiangyang City,it is necessary to further enhance the awareness of water conservation and improve the utilization efficiency of water resources in the future.
Water ecological security evaluationPSR modelentropy weight methodxiangyang City
万方数据
维普
