期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：12
页码：17778
DOI：10.15680/IJIRSET.2014.0312006
出版社：S&S Publications
摘要：To restore and sustain urban stream or river water quality, many cities have been devoting to a greeninfrastructure, and federal agencies have started collaborating to help the community invest in green roof, roadside raingardens and increased tree canopies. The objective ofthis study is toanalyze the ecosystem benefit of the greenstromwaterinfrastructurethat applies to managing stormwaterquantity and quality.Using an ArcGIS-based modellingtool, we quantitatively analyzedthe ecosystem service of green roofs. The results show that constructing green roofs onthe rooftops of 2% of the impervious areas or building can reduce up to 166% and 32% storm water runoff in RockCreek and Anacostia River sub-watersheds in Washington DC, respectively. This can save up to $21.4 million inbuilding storage tanks to store total runoff volume. Improving green roof and tree canopy areas can significantly reducethe negative impact of urban storm water runoff and therebyimprove urban-stream water quality.
关键词：Best management practices; Green roof;Low impact development; Stormwater management;Water;quality
