摘要
区域地下水资源承载力评价对于维护区域生态环境安全和促进社会经济可持续发展具有重要意义。运用主成分分析法,根据地下水开发率、地下水供水模数、地下水补给模数、地下水排泄模数、人均地下水占有量、单位GDP用水量和水资源重复利用率等7项评价指标,对西安市地下水资源承载力进行评价。综合评价结果表明:西安市地下水资源有一定的承载力,但整体上地下水开发率过高,继续开发利用的潜力甚小。其中城六区综合评价值为70.816,地下水承载力趋于饱和且继续开发潜力最小,周至县综合评价值为-240.998,地下水开发潜力最大。评价结果为地下水资源的合理开发利用提供参考。
Assessment of groundwater resources carrying capacity is full of great significance for maintaining the local ecological environment security and promoting sustainable socio-economic development. This paper evaluated the groundwater resources carry- ing capacity in Xi＇an City using seven evaluation indexes, such as rate of groundwater development, modulus of groundwater sup- ply, groundwater recharge modulus, groundwater discharge modulus, per capita consumption of groundwater, water consumption per unit of GDP and water resources recycling, based on principal component analysis. The results show that the groundwater resources in Xi＇an City has a certain carrying capacity, but its rate of exploitation is too high in total and the potential of further develop- ment is small. The evaluated value of urban in Xi＇an City is 70.816, and its groundwater resources carrying capacity nearly saturates and the potential of further development is the smallest. The evaluated value of Zhouzhi County is -240.998 and the potential of further development is the largest. The results provide reference for rational use of groundwater resources.
出处
《水文》
CSCD
北大核心
2013年第2期35-38,共4页
Journal of China Hydrology
基金
陕西省自然科学基础研究计划项目(S2012JC7610)
陕西省教育厅基金(11JS076)
关键词
主成分分析法
地下水资源
承载力
principal component analysis
groundwater resources
carrying capacity
