气候变化领域集成服务门户(CCPortal): Runoff retention assessment for extensive green roofs and prioritization of structural factors at runoff plot scale using the Taguchi method

CCPortal

DOI	10.1016/j.ecoleng.2019.07.033
	Runoff retention assessment for extensive green roofs and prioritization of structural factors at runoff plot scale using the Taguchi method
	Liu, Wen; Feng, Qi; Chen, Weiping; Wei, Wei; Si, Jianhua; Xi, Haiyang
发表日期	2019
ISSN	0925-8574
EISSN	1872-6992
卷号	138
英文摘要	In spite of the well-known green roof benefits, their widespread adoption in the management practices of urban green infrastructures requires the design of adequate structural factors/levels or its optimal combination. Using the Taguchi method, this study assessed the structural factors affecting runoff retention of extensive green roofs. The structural factors considered in this study consisted of substrate material, substrate depth, slope and vegetation type, each of which had three levels. Nine runoff plots of extensive green roofs were designed according to the Taguchi's orthogonal array L-9 (four factors at three levels). An analysis of the signal-to-noise (S/N) ratio was used to evaluate the runoff discharge of green roofs. The results showed that substrate material S2 has lower runoff discharge than substrate S1 and S3. The amount of runoff discharge increases as the substrate depth increases from 5 cm to 15 cm. There were slight differences in runoff discharge among vegetation types of green roofs. The runoff discharge of green roofs with 2% slope was higher than the runoff discharge of 7% and 12% slope gradients. Substrate material aspect made the greatest contribution of runoff retention (53.9%) and followed by substrate depth contribution (26.2%). The results from regression analysis of the predicted versus measured runoff discharge showed that the Taguchi method is able to predict the runoff discharge well (R-2 = 0.96, p < 0.001), and it confirmed the high credibility of the Taguchi method to predict runoff retention in response to different combinations of factors and levels.
关键词	Green roof Optimization method Simulated rainfall Runoff retention Taguchi method
学科领域	Environmental Sciences & Ecology; Engineering
语种	英语
WOS研究方向	Ecology ; Engineering, Environmental ; Environmental Sciences
来源期刊	ECOLOGICAL ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/112069
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wen,Feng, Qi,Chen, Weiping,et al. Runoff retention assessment for extensive green roofs and prioritization of structural factors at runoff plot scale using the Taguchi method[J]. 中国科学院西北生态环境资源研究院,2019,138.
APA	Liu, Wen,Feng, Qi,Chen, Weiping,Wei, Wei,Si, Jianhua,&Xi, Haiyang.(2019).Runoff retention assessment for extensive green roofs and prioritization of structural factors at runoff plot scale using the Taguchi method.ECOLOGICAL ENGINEERING,138.
MLA	Liu, Wen,et al."Runoff retention assessment for extensive green roofs and prioritization of structural factors at runoff plot scale using the Taguchi method".ECOLOGICAL ENGINEERING 138(2019).