南京市江宁区水资源承载力特征分析及评价

Feature analysis and evaluation of water resources carrying capacity in Jiangning District, Nanjing City

针对水资源承载力多元复杂综合体系,在江宁区水资源承载力特征分析基础上,突出水质、水生态区域水资源承载力的重要作用,对区域水资源承载力定义进行了界定。基于水资源的水量、水质、水生态3个要素,构建由目标层、要素层、表征层及指标层构成的多层次、分要素、能力-负荷双向表征的水资源承载力评价指标体系,采用单要素评价法对江宁区水资源承载力进行了现状评价。结果表明,江宁区现状水量要素能支撑人口经济发展,水质、水生态状况相对较差,对区域人口经济的承载能力薄弱。

Aiming at the complex and comprehensive system of water resources carrying capacity,based on the analysis of the characteristics of water resources carrying capacity in Jiangning District,the regional water resources carrying capacity was defined by highlighting the important role of water quality and water ecology in water resources carrying capacity.The diagnostic system of water resources carrying capacity was composed of the target,the elements,the representations and the index,which was multi-level,multi-element and bi-directional characterization between capacity and load.The present situation of water resources carrying capacity in Jiangning District was evaluated by the single factor evaluation method.The evaluation results showed that the current water quantity factors in Jiangning District could support population economic development.However,the water quality and aquatic ecological conditions were relatively poor,and the carrying capacity of the regional population economy was weak.