下凹式绿地在降雨径流控制中的应用研究

摘要

Sunken green space is a new low-effective method for rainwater utilization, with the advantages of storing and in-filtrating the rainwater, cutting down the flood peak, purifying the rainwater, preventing the soil erosion problem.Besides, the sunken green space can meet environmental, ecological, economic and other multiple requirement.The application will not only relieve the shortage of urban water resources, non-point source pollution caused by rainfall, but also prevent urban waterlogging.Based on introducing sunken green space control rainfall runoff, this paper summarized the research process of sunken green space and rainwater purification and design.%下凹式绿地具有蓄渗雨水、削减洪峰流量、净化雨水、防止土壤侵蚀等优点,且投资少,是一种能同时满足环境、生态、经济等多重效应的新型雨水利用措施;它的应用将有效缓解城市水资源匮乏和降雨地表径流造成的面源污染,同时能在一定程度上防止城市内涝.在介绍下凹式绿地对降雨径流控制的基础上,着重综述了下凹式绿地对雨水的蓄渗、净化作用及其设计方面的研究进展.