基于博弈论组合赋权-TOPSIS模型的安康市水资源承载力综合评价

采用陕西省安康市2011-2020年统计资料, 基于水资源-社会-经济-生态环境复合系统构建水资源承载力评价指标体系; 以博弈论组合赋权法确定指标权重, 综合运用TOPSIS法和障碍度模型对安康市水资源承载力进行评价.结果表明: 2011-2020年安康市水资源承载力变化趋势呈"W"型, 总体变化不大, 水资源仍有较大开发利用空间; 水资源和生态环境子系统承载力总体呈下降趋势, 社会和经济子系统承载力呈上升趋势; 制约安康市水资源承载力水平的主要是生态环境子系统和经济子系统, 氨氮排放量、化学需氧量排放量、生态环境用水率、城市污水日处理能力和万元工业增加值用水量是主要的障碍因子.

COMPREHENSIVE EVALUATION OF WATER RESOURCES CARRYING CAPACITY IN ANKANG CITY BASED ON GAME THEORY COMBINATION WEIGHTING-TOPSIS MODEL

Adopting the statistical data of Ankang City in Shaanxi Province during 2011-2020, the evaluation index system of water resources carrying capacity is constructed on the basis of the composite system of water resources-society-economy-ecological environment. The index weights are determined by the game theory combination weighting method, and the TOPSIS method and obstacle degree model are used to evaluate the water resources carrying capacity in the area. The results reveal that the variation trend of water resources carrying capacity during 2011-2020 shows a "W" shape, with little overall change, and there is still much room for development and utilization of water resources. The carrying capacity of water resources and eco-environment subsystems shows a downward trend, while that of society and economy subsystems is on the rise. The main factors restricting the carrying capacity of water resources are eco-environment and economy subsystems. The main obstacle factors include ammonia nitrogen emission, chemical oxygen demand(COD) discharge, water consumption rate of eco-environment, daily treatment capacity of urban sewage and water consumption by unit industrial added value.