城市湖塘水环境问题多维诊断与治理策略及实践

Multi-dimensional Diagnosis,Treatment Strategies and Practices for Water Environment Problems of Urban Lakes and Ponds

随着我国水环境综合治理与黑臭水体消除工作步入“深水区”,城市湖塘水环境问题已成为制约打好水污染防治攻坚战的“绊脚石”。以深圳市茅洲河流域宝安片区典型城市湖塘(定岗湖)为例,基于水环境问题多维诊断,以“区域协同,水岸赋能”为治理理念,提出了“区域联动-内外协同-水岸融合-智慧赋能”的四位一体城市湖塘综合治理策略,并开展工程实践。治理后的定岗湖水体透明度由20 cm以下提高至2 m,生物多样性显著改善,生态修复自净能力大幅增强,可为国内其他类似工程提供参考。

With the comprehensive treatment of water environment and the elimination of black and odorous water bodies in our country entering the deep end,the environmental problems of urban lakes and ponds have become a stumbling block restricting the fight against water pollution.Taking Dinggang Lake,a typical urban lake in Bao'an area of Maozhou River basin in Shenzhen,as an example,based on multi-dimensional diagnosis of water environment problems and the concept of “regional coordination and water-shore empowerment”,a four-in-one urban lake and pond comprehensive treating strategy of “regional linkage,internal and external collaboration,water-shore integration,and intelligent empowerment” was proposed with engineering practices.After treatment,the water transparency of Dinggang Lake was significantly improved from less than 20 cm to 2 m.Biodiversity was significantly improved,and the ecological self-purification capacity was greatly enhanced.The strategy and practice could provide a reference for subsequent domestic similar projects.