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	The influence of structural factors on stormwater runoff retention of extensive green roofs: new evidence from scale-based models and real experiments
	Liu, Wen1; Feng, Qi1; Chen, Weiping2; Wei, Wei2; Deo, Ravinesh C.1,3,4
刊名	JOURNAL OF HYDROLOGY
	2019-02-01
卷号	569页码:230-238
关键词	Green roof Runoff retention Scale model Simulated rainfall Structural factors Substrate
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2018.11.066
通讯作者	Feng, Qi(qifeng@lzb.ac.cn) ; Deo, Ravinesh C.(ravinesh.Deo@usq.edu.au)
英文摘要	Green roofs, in contrast to conventional roofs, retain significant stormwater, and are considerably appealing for urban regions to help mitigate flooding events and addressing serious environmental impacts of excessive or uncontrolled runoff. In designing a green roof, a careful selection of substrate material/depths, vegetation or slopes, or its optimal combination, is imperative but this issue remains underexplored by practicing hydrologists. Scale-based models of extensive green roofs were purposely designed and simulated rainfall experiments were conducted to comprehensively quantify runoff retention performance of extensive green roofs, to precisely determine the contribution of structural factors to stormwater retention. The results indicated that green roofs can effectively retain stormwater and delay the start of the runoff. To aver with this finding, influential contribution of four structural factors are ordered as follows: substrate material > substrate depth > slope > vegetation. This finding denotes that substrate material and its depth are major contributors to a green roof's stormwater retention capability. Statistical tests conducted on runoff retention showed the substrate materials and vegetation types had statistically significant effects, no statistically significant difference in runoff retention abilities among the three substrate depth treatments and the slope gradients considered. Given the same conditions, the study ascertains that runoff retention of low intensity events is likely to be relatively higher, while that of the heavy events is lower than its counterparts. The antecedent moisture contents of the substrate have a significant negative influence on the runoff retention and the time to the runoff.
收录类别	SCI
WOS关键词	SURFACE RUNOFF ; SOIL-EROSION ; PERFORMANCE ; QUALITY ; QUANTITY ; BEHAVIOR ; VEGETATION ; CAPACITY ; SLOPE
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000457952900018
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558165
专题	寒区旱区环境与工程研究所
通讯作者	Feng, Qi; Deo, Ravinesh C.
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Univ Southern Queensland, Sch Agr Computat & Environm Sci, Ctr Appl Climate Sci, Springfield, Qld 4300, Australia 4.Univ Southern Queensland, Ctr Sustainable Agr Syst, Springfield, Qld 4300, Australia
推荐引用方式 GB/T 7714	Liu, Wen,Feng, Qi,Chen, Weiping,et al. The influence of structural factors on stormwater runoff retention of extensive green roofs: new evidence from scale-based models and real experiments[J]. JOURNAL OF HYDROLOGY,2019,569:230-238.
APA	Liu, Wen,Feng, Qi,Chen, Weiping,Wei, Wei,&Deo, Ravinesh C..(2019).The influence of structural factors on stormwater runoff retention of extensive green roofs: new evidence from scale-based models and real experiments.JOURNAL OF HYDROLOGY,569,230-238.
MLA	Liu, Wen,et al."The influence of structural factors on stormwater runoff retention of extensive green roofs: new evidence from scale-based models and real experiments".JOURNAL OF HYDROLOGY 569(2019):230-238.

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