摘要:针对目前水环境承载力相关研究中未突显生态系统净化作用和人为调控作用的问题，从生态系统污染净化功能和人为调控污染削减功能两个角度，提出基于生态系统净化-人为调控耦合作用的水环境承载力概念，并构建流域环境承载力评估模型。以滇池流域为例，计算了2015年滇池流域水环境承载力。研究结果表明：滇池流域2015年水环境承载力综合指数为1.16，处于超载状态；流域环境承载力分布呈现北高南低，北部限制因子化学需氧量，南部为总磷；调水工程调入水量出境携带污染物约为流域水环境承载力的16%，对流域水环境改善十分重要；人为调控污染削减能力在流域水环境承载力中所占比例已超过50%，成为不可忽视的一部分。



Abstract:In order to highlight the importance of the ecosystem purification and human regulation in the carrying capacity of water environment, the concept and evaluation model of water environment carrying capacity was built based on the ecosystem pollution purification and human-regulated pollution reduction. As a study case, water environmental carrying capacity of Dianchi Basin was calculated in 2015. The results illustrated that the environmental capacity comprehensive index of Dianchi Basin was 1.16, which was in an overload state. Regarding the distribution of environmental capacity, the north was higher than the south. The limiting factor of the north and south were Chemical Oxygen Demand and Total Phosphorus, respectively. The transfer of pollutants in the water transfer project was equivalent to 16% of the water environment carrying capacity, which was very important for the improvement of watershed environment. The reduction capacity of human regulation has taken up more than 50%, which has become a non-negligible part.





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