Water resources and water environmental issues have emerged as significant constraints on the socio-economic development of Wuxi City.Based on the mechanism of mutual feedback within this sys-tem,a coupled model of the social-economy-water resources-water environmental was developed by means of spatial system dynamics.Subsequently,this model was employed to study the spatiotemporal dynamic characteristics of water resources and water environment carrying capacities in each subregion of Wuxi,considering various climate and socio-economic development scenarios.The results show that:① Both wa-ter resources carrying capacity coefficients and water environmental carrying capacity coefficients of each administrative district display in following order under different scenarios:Binhu District＞Xishan District＞Huishan District＞Xinwu District＞Liangxi District.② There are distinctions of water resources car-rying capacity and water environment carrying capacity under different settings.Compared with B3 scenario(a developing society in a dry climate),the monthly average values of water resources carrying ca-pacity coefficients and water environmental carrying capacity coefficients in Liangxi District,Binhu Dis-trict,Xishan District,Huishan District,and Xinwu District under C1 scenario(a water saving and emis-sion reduction society in a wet climate)are 2.23 and 2.36,2.13 and 3.22,2.13 and 2.55,2.12 and 2.53,1.58 and 1.74 times,respectively.The practice shows that the spatial system dynamics model effectively harmonizes the relations between social economy and resource environment in both time and space,model-ling simulation results that closely align with actual conditions.Thus,it provides a robust scientific foun-dation for regional water resource management in similar areas.
关键词
空间系统动力学/水资源/水环境/承载力/无锡市区
Key words
spatial system dynamics/water resources/water environment/carrying capacity/Wuxi urban area
维普
万方数据