海绵城市设计理念在河道水环境综合治理中的应用

针对北方某一城市建设过程中存在的河流湿地污染、局部内涝严重等现象，以海绵城市为设计理念，结合地域文化特色和基址条件，建立海绵式生态规划区。在原有蓄水池基础上，扩宽原有河流水系，采用地表水体调蓄净化，通过生态调蓄空间连接引河，以闸控制，建立水体循环与雨洪调蓄结合的水系统，采用人工净化和自然净化的方式，保证生态水量，改善水质。在城市河流周边湿地方面，进行项目分区设计，建立调蓄空间、雨水花园、生态滞留园、抛石驳岸、滨河步道以及生态种植池的绿化构造，形成驳岸景观和“四季常绿”的效果。

Application of sponge city design concept in comprehensive treatment of river water environment

Aiming at the problems of river wetland pollution and severe local waterlogging that existed in the construction of a certain city in the north，the sponge city was adopted as the design concept，combined with regional cultural characteristics and site conditions，to establish a sponge-type ecological planning area.On the basis of the original reservoir，widen the original river system，adopt surface water regulation and storage purification，connect the diversion river through ecological regulation and storage space，control by gates，establish a water system combining water circulation and rainwater regulation and storage，adopt artificial purification and natural purification methods to ensure the amount of ecological water and improve water quality.Regarding the wetlands around urban rivers，the project zoning design was carried out，and the greening structure of storage space，rain garden，ecological retention garden，stone dumping bank，riverside trail and ecological planting pond was established to form a bank landscape and the effect of "every seasons of evergreen".