黄山市太平湖流域水资源承载力分析

Analysis of Water Resources Carrying Capacity of Taiping Lake Basin,Huangshan City,Anhui Province

黄山市太平湖流域因其重要的水资源供给和储备功能,对安徽省乃至整个长三角地区的水资源安全方面具有重要的战略意义.通过研究太平湖流域的水资源承载力,即水资源能够维系该地区人口规模、经济发展与环境目标的能力,运用水资源承载力评价方法及公式,计算出流域水资源总量(W)、生态需水量(WE)、可利用水资源量(WS)、水资源需求总量(WD)、人口规模承载力(CP)、经济发展承载力(CE)以及承载力平衡指数(IWSD).结果表明,太平湖流域的水资源能够支撑近期区域的人口和社会经济发展需求,但随着城镇化的推进、人口和社会经济快速发展,流域水资源承载力呈下降的趋势,区域的水资源储备量呈减少趋势,但在生态环境容许范围内.因此,适当提高水资源开发利用率,可提高水资源人口承载力和经济承载力,增加区域水资源的战略储备量.

Taiping Lake Basin （TLB）, located in Huangshan city, Anhui Province, has an important strategic significance for its special geographical location and rich water resources in Pan-Yangtze River Delta. By using the formula and indexes including Total-water-resource （ W ）, Ecological-requirement-of-water-resource （ WE ）, Supply-of-wate^resource （Ws）, Demand-of-water-resource （WD）, Capacity-of-population （Ce）, Capacity-of- economy （CE） and Index of water supply and demand （IWSD）, the calculation methods were constructed and applied to evaluate the Water Resources Carrying Capacity （WRCC） of TLB. Results showed that it is not until 2020 that the population and economy of TBL are both in the acceptable range with the current WRCC, despite the fact that the WRCC has a descending trend with the increase of urbanization, population and economy. However, the WRCC, as well as Ce and CE, can he improved without destroying the regional ecological environment by increasing the utilization rate of water resources to 12%.