引洮工程对定西市水资源生态承载力的影响研究

Study on the influence of Tao River Diversion Project on ecological carrying capacity of water resources in Dingxi City

为探究引洮工程对定西市水资源生态承载力的影响,本文采用水资源生态足迹和承载力模型,计算定西市2010—2017年水资源生态足迹和承载力,分析其变化规律和引洮工程一期通水的影响。结果表明:定西市水资源利用存在生态赤字,处于不可持续状态,水资源生态足迹呈现逐年减小的趋势;水资源生态承载力呈波动状态;定西市水资源生态赤字和万元GDP水资源足迹均逐年减小,说明定西市水资源利用效率在稳步提升。

In order to explore the impact of the Tao River Diversion Project on the ecological carrying capacity of water resources in Dingxi City,this paper uses the model of ecological footprint and carrying capacity of water resources to calculate the ecological footprint and carrying capacity of water resources in Dingxi City from 2010 to 2017,and analyzes its change law and the impact of the first-stage water supply of Tao River Diversion Project.The results show that there is an ecological deficit in water resources utilization in Dingxi city,which is in an unsustainable state,and the ecological footprint of water resources is decreasing year by year;The ecological carrying capacity of water resources is fluctuating;The ecological deficit of water resources and the footprint of water resources per 10,000 Yuan GDP in Dingxi City are decreasing year by year,indicating that the utilization efficiency of water resources in Dingxi City is steadily improving.