中文摘要：

随着城市化进程加快,不透水地表面积所占比例越来越高,增加了地表径流量,城市面源污染对受纳水体的影响越来越受到重视。应用绿色屋面作为控制面源污染的措施在欧美发达国家已经得到广泛应用,而中国对绿色屋面调峰控污效应关注不够。该文综述了近年来国内外对绿色屋面径流水质的研究现状、分析了绿色屋面的截流减污效应以及影响其截流减污效应的因素。发现关于绿色屋面对径流水质的影响存在争议,仍需进一步深入研究;针对绿色屋面基质组分优化的研究鲜见报道,绿色屋面暴雨径流可能成为水环境的污染源;研究者虽已针对影响绿色屋面截流减污效应的因素进行大量研究,但未探索各影响因子之间的交互作用,致使绿色屋面截流减污的机理未被识别。科学应用和推广绿色屋面控污技术仍需开展大量的研究工作。

英文摘要：

With the rapid urbanization, the ratio of the impervious surface area accounted for urban area will be raised increasingly and added the surface runoff volume, and urban non-point source pollution impact on the receiving water body has received increasingly attentions recently. It has been widely adopted abroad that green roof as a measure to control non- point source pollution. However, the effect of regulating runoff peak and controlling pollution by green roof are not paid enough attentions in China. Based on studies in recent years, this review systematically summarizes the research status of runoff water quality of green roof, analyzes the effect of the runoff intercepting and pollution reducing and the factors of influencing the runoff intercepting and pollution reducing of green roof. It was found that there is controversial for the effect of green roof for rainfall runoff water quality, and still need further research. Previous research of optimizing the substrates of green roof was rarely reported, therefore the rainfall runoff of green roof may become a pollution source for water environment. Although a lot of studies were done on factors affecting the effect of the runoff intercepting and pollution reducing, but the interaction between the influencing factors resulting in the mechanism of the runoff intercepting and pollution reducing has not been indentified. In summary, further study is needed for a long time in order to applying and promoting the technology of controlling non-point pollution of green roof.