WANG Jiang-hai, ZHANG Xin-bo, ZHAO Xin-hua. Characters of Hydrology and Water Quality of Green Roof[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 223-226.
DOI:
WANG Jiang-hai, ZHANG Xin-bo, ZHAO Xin-hua. Characters of Hydrology and Water Quality of Green Roof[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 223-226. DOI: 10.13961/j.cnki.stbctb.2014.03.044.
Characters of Hydrology and Water Quality of Green Roof
Green roof is capable of significantly reducing rainwater volume and purifying rainwater quality. It has become one of the important strategies to solve urban floods. This study investigated the ratio of runoff retention
effluent process and effluent water quality by building pilot scale facilities. Results from the experiment confirmed that the ratio of runoff retention is accordance with a certain periodic formula; the total runoff volume
the amount of previous reduction and later reduction have different linear correlations with the thickness of substrate layer; and green roof is capable of significantly reducing the concentrations of TN and COD
but the concentrations of NH4-N and TP in runoff from green roof are higher relatively. Finally
this study recommends that the optimal range of the thickness of substrate layer is 10-20 cm by integrating the two aspects of hydrology and water quality.
关键词
Keywords
references
Berndtsson J C. Green roof performance towards management of runoff water quantity and quality:A review[J]. Ecological Engineering, 2010,36(4):351-360.
Mentens J, Raes D, Hermy M. Green roofs as a tool for solving the rainwater runoff problem in the urbanised 21st century[J]. Landscape Urban Plan, 2006,77(3):217-226.
Hilten R N, Lawrence T M, Tollner E W. Modeling stormwater runoff from green roofs with HYDRUS-1D[J]. Journal of Hydrology, 2008,358(3/4):288-293.
Berndtsson J C, Bengtsson L, Jinno K. Runoff water quality from intensive and extensive vegetated roofs[J]. Ecological Engineering, 2009,35(3):369-380.
Teemusk A, Mander V. The influence of green roofs on runoff water quality:A case study from Estonia[J]. Water Resources Management, 2011,25(14):3699-3713.