海绵城市中LID设施对降雨径流及非点源污染的控制研究  

Study on the control of rainfall runoff and non-point source pollution by LID facilities in sponge City

作　　者：张泉荣[1] 姚允龙[1] 陈鑫[1] ZHANG Quanrong;YAO Yunlong;CHEN Xin(Zhenjiang Hydrology and Water Resources Investigation Bureau of Jiangsu Province,Zhenjiang 212028,Jiangsu)

机构地区：[1]江苏省水文水资源勘测局镇江分局,江苏镇江212028

出　　处：《江苏水利》2018年第12期8-13,共6页Jiangsu Water Resources

基　　金：江苏省水利科技项目(2016024)

摘　　要：低影响开发(LID)以源头控制和延缓冲击负荷为核心理念,强调城镇开发应减小对环境的冲击,是海绵城市建设的重要途径。研究以海绵城市试点区域虹桥港片区为例,采用暴雨洪水管理模型(SWMM模型),对研究区域LID设施实施前后降雨径流以及非点源污染的变化情况进行定量和定性研究。研究结果表明:LID设施对地表径流量峰值削减作用明显,但随着降水重现期的增加,削峰作用降低;同时,对径流污染物总量削减效果明显,在不同降雨强度下,均能有50%以上的削减作用。Low Impact Development(LID)is an important approach to the construction of sponge cities with the core concept of source control and delay of buffering load,which emphasized that the urban development should reduce the impact on the environment.Taking Hongqiao Harbor Experimental Area of sponge city as an example,the rainfall runoff and non-point source pollution before and after the implementation of LID facilities in the study area were quantitatively and qualitatively studied by using SWMM model.The results showed that the LID facility could significantly reduce the peak value of surface runoff,but with the increase of precipitation recurrence period,the peak value was reduced.Meanwhile,the total amount of runoff pollutants was significantly reduced,which could have more than50%reduction effect under different rainfall intensity.

关 键 词：LID设施 海绵城市 SWMM模型 降雨径流 非点源污染 

分 类 号：TV213.9[水利工程—水文学及水资源]