Evaluation of Water Resources Carrying Capacity in Shiyan City Based on Improved Fuzzy Comprehensive Evaluation
Shiyan City is the core water source area of the Middle Route of the South-to-North Water Diversion Pro-ject.In order to fully understand the sustainable development and utilization of water resources in Shiyan City,an evalua-tion index system of water resources carrying capacity was constructed based on the three aspects of water resources,eco-logical environment and social economy.Grey correlation analysis was used to screen the index system.The entropy weight method and analytic hierarchy process were used to calculate the index weight,and the improved fuzzy comprehen-sive evaluation method was used to evaluate the water resources carrying capacity of Shiyan City from 2010 to 2021.The results show that the water resources carrying capacity of Shiyan City showed an overall trend of fluctuation and increase.It reached the bearing capacity state steadily from 2016,and reached the good bearing capacity state in wet years.The ec-ological environment subsystem and the social economy subsystem showed an upward trend,while the water resource subsystem fluctuated greatly and had no obvious law.In order to realize the harmonious development of water resources and human society,Shiyan City should continue to strengthen the treatment of pollution and waste water,adjust the wa-ter structure and build a water-saving society.
water resources carrying capacityfuzzy comprehensive evaluationgrey correlation analysisShiyan Cit-ySouth-to-North Water Diversion Project
万方数据
维普
