Spatiotemporal evolution and driving factors of water resources carrying capacity on resource-based cities in Anhui Province
Resource-based cities in Anhui Province are taken as sample areas,the population-water quality-water yield-society evaluation system was established.The rank-sum ratio comprehensive evaluation method was used to grade the water resources carrying capacity of resource-based cities in Anhui Province.Finally,the spatial differentiation of regional water resources carrying capacity and the explanatory power of driving factors were studied by means of standard deviation ellipse and geographic detector.The results show that:the water resources carrying capacity of resource-based cities in Anhui Province was relatively low as a whole from 2011 to 2021,mainly in the state of Ⅱ(overload)from 2011 to 2015,and gradually improved to Ⅲ(critical)or Ⅳ(no overload)from 2015 to 2021.The water resources carrying capacity in the northern cities of Anhui is lower than that in the southern cities,but the growth rate is faster,and the unbalanced water resources carrying capacity distribution pattern is gradually improving.The factor with the greatest explana-tory power to the spatial heterogeneity of the water resources carrying capacity in each city is the water consumption of ecological water replenishment,followed by the number of water pollution and the number of workers in the mining industry.
resource-based citywater resources carrying capacityrank-sum ratio comprehensive evaluationspatial differentiationgeographic detector
万方数据
维普
