拟自然化城市湖泊水环境治理的生态 智慧与途径——以南京玄武湖为例

"金陵明珠"玄武湖作为南京的核心生态斑块与重要游憩地,其水环境治理是城市双修的重要内容。通过对比玄武湖周边城市建设前后的水文过程差异,聚焦水系水域、土地利用、水利工程等方面解读玄武湖水环境系统退化的成因,针对湖泊水环境的状况,采取生态恢复法则,探索城市湖泊水环境生态恢复的路径,旨在最大限度改善湖泊小流域自然水文过程,结合拟自然的代偿性工程措施作为补充,运用生态智慧修复、优化城市湖泊水环境,对于众多城市湖泊面临的共性问题具有普适价值。

The Ecological Approaches to Water Environment Improvement of Urban Lakes: A Case Study of Nanjing Xuanwu Lake

Xuanwu Lake, "Pearl of Nanjing", as one of the core ecological patches and important recreational areas of Nanjing, its water environment treatment is an important part of the city''s double-repair. By comparing the differences of hydrological processes before and after the urban construction around Xuanwu Lake, this paper focuses on the water system, land use, hydraulic engineering and other aspects to understand the causes of water environmental degradation in Xuanwu Lake. According to the status of lake water environment, the ecological restoration principle was adopted to explore the ecological restoration path. The aim of this study is to improve the natural hydrological process of the small lake basin to the maximum, and to restore and optimize the urban lake water environment with ecological wisdom. The paper is of universal value to the common problems faced by many urban lakes.