基于水资源生态足迹法的中山市水资源可持续发展评价

Evaluation of Water Resources Sustainability in Zhongshan City Based on Water Ecological Footprint

节约水资源对水资源可持续利用具有重要作用,选取2000—2017年中山市水资源的相关数据,运用水资源生态足迹和可持续利用评价的分析方法,分析中山市开展节水工作后的水资源可持续发展情况。结果表明,中山市2011年节水工作开展后,中山市人均水资源生态足迹整体下降,水资源利用强度直线下降,水资源生态压力指数整体减小,人均水资源生态承载力整体上升,人均水资源生态盈余整体增加。中山市水资源利用可持续状态占比接近89%,节水工作开展后,水资源由弱不可持续状态转变为弱可持续、中可持续状态,有效提高水资源可持续利用水平。

Saving water resources plays an important role in the sustainable utilization of water resources.Based on relevant data of water resources in Zhongshan City from 2000 to 2017,this paper analyzes the sustainable development of water resources in Zhongshan City after carrying out water-saving work by the analysis methods of water ecological footprint and sustainable utilization evaluation.The results show that after the water-saving work was carried out in Zhongshan City in 2011,in overall,the water ecological footprint per capita decreased,the intensity of water resources utilization decreased sharply,the ecological pressure index of water resources reduced,the ecological carrying capacity of water resources per capita increased,and the ecological surplus of water resources per capita increased;with nearly 89%sustainable utilization state of water resources in Zhongshan,water resources have changed from a weak unsustainable state to a weak and medium sustainable state.The level of sustainable utilization of water resources is effectively improved.