粗放式绿色屋顶雨水径流滞蓄截污效果影响因素研究进展

绿色屋顶作为海绵城市低影响开发措施之一，在实际降雨事件中表现出一定的雨水径流滞蓄截污效果，能有效缓解城市内涝和面源污染的现状。且粗放式绿色屋顶因其对屋顶荷载要求低、后期维护较易、成本低等一系列优点，适合实际工程应用，因此对粗放式绿色屋顶雨水径流滞蓄截污效果的影响因素进行研究，对今后的工程应用具有一定的实际指导意义。通过综述近几年国内外关于粗放式绿色屋顶雨水径流滞蓄截污影响因素的研究，指出目前进行相关研究的不足之处和对今后的研究与实践提出展望。

RESEARCH PROGRESS ON INFLUENCING FACTORS OF RAINWATER RUNOFF RETENTION AND POLLUTION INTERCEPTION EFFECT OF EXTENSIVE GREEN ROOF

As one of the low-impact development measures in sponge city, green roofs showed a certain effect of rainwater runoff retention and pollution interception during actual rainfall events, which effectively alleviated the current situation of urban waterlogging and non-point source pollution. The extensive green roof was suitable for the practical application of the project due to a series of advantages, such as lower roof load requirements, easier subsequent maintenance and less cost. Therefore, research on the influencing factors of rainwater runoff retention and pollution interception effect of extensive green roof had certain practical guiding significance for future engineering application. Based on a review of the domestic and foreign researches on the influencing factors of rainwater runoff retention and pollution interception in recent years, the deficiencies of the related research and the prospects for future research and practice were pointed out.