Evaluation of Water Resources Carrying Capacity in Yulin City Based on Fuzzy-Game-Obstacle Comprehensive Evaluation Model
Aiming at the evaluation of water resources carrying capacity of Yulin City,the evaluation index system was constructed by 14 evaluation indicators selected from 4 subsystems:water resources,ecological environment,socie-ty,and economy.The combination of game theory and fuzzy comprehensive evaluation model were used to evaluate the water resources carrying capacity in Yulin City.An obstacle degree model was used to quantitatively analyze the influen-cing factors.The results show that the carrying capacity of water resources in Yulin City fluctuated and decreased from 2011 to 2021,with an average comprehensive score of 0.506 8,which belongs to medium carrying capacity,and water re-sources still have a large space for development and utilization.The carrying capacity of eco-environment,social and eco-nomic subsystems is on the rise,and the carrying capacity of water resources subsystems fluctuates greatly from year to year due to the uneven distribution of precipitation and the lack of annual controllable water supply.Precipitation,eco-en-vironmental water use rate,per capita water resources,per capita GDP and urban domestic sewage discharge are the main obstacles to Yulin's water resources carrying capacity.
fuzzy comprehensive evaluation modelgame theoryobstacle degreewater resources carrying capacityYulin City