[1]胡尹超,秦华鹏,林子璇.深圳绿色屋顶雨水滞留效应变化及其影响因素[J].深圳大学学报理工版,2020,37(4):347-354.[doi:10.3724/SP.J.1249.2020.04347]
　HU Yinchao,QIN Huapeng,and Lin Zixuan.Variation and influencing factors of rainwater retention of green roofs in Shenzhen[J].Journal of Shenzhen University Science and Engineering,2020,37(4):347-354.[doi:10.3724/SP.J.1249.2020.04347]
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深圳绿色屋顶雨水滞留效应变化及其影响因素()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第37卷
期数:
2020年第4期
页码:
347-354
栏目:
专题：海绵城市
出版日期:
2020-07-15

文章信息/Info

Title:
Variation and influencing factors of rainwater retention of green roofs in Shenzhen
文章编号:
202004003
作者:
胡尹超; 秦华鹏; 林子璇
北京大学深圳研究生院环境与能源学院，城市人居环境科学与技术重点实验室，广东深圳 518055
Author(s):
HU Yinchao;  QIN Huapeng;  and Lin Zixuan
School of Environment and Energy, Shenzhen Graduate School of Peking University, Key Laboratory for Urban Habitat Environmental Science and Technology, Shenzhen 518055, Guangdong Province, P.R.China
关键词:
水环境科学; 径流; 绿色屋顶; 雨水滞留效应; 效应波动; 降雨量; 雨前日间干旱时间; 植物类型; 植物覆盖度
Keywords:
water environment science;  runoff;  green roof;  rainwater retention effect;  performance variation;  rainfall depth;  antecedent dry period in daytime (ADP daytime);  vegetation types;  plant coverage
分类号:
TV121
DOI:
10.3724/SP.J.1249.2020.04347
文献标志码:
A
摘要:
绿色屋顶可滞留雨水削减径流，已被广泛应用于城市雨水管理．绿色屋顶雨水滞留效应会随降雨场次及月份降雨条件的变化而波动．基于中国深圳市洋竹草、太阳花、卧地延命草和佛甲草4种不同植被绿色屋顶18个月共58场降雨的连续水文监测和植物覆盖度监测，分析了绿色屋顶雨水滞留效应的波动规律及其影响因素，结果表明，绿色屋顶对场次降雨的雨水滞留量为0.4～37 mm，雨水滞留率为2%～100%；绿色屋顶月雨水滞留量为13～148 mm，月雨水滞留率为29%～70%；绿色屋顶全年总雨水滞留量为610～660 mm，雨水滞留率为44%～49%．雨水滞留率和雨水滞留量与降雨量分别呈显著负相关和正相关，二者都与雨前日间干旱时间呈显著正相关；此外月均太阳辐射和植被类型及其覆盖度变化也对月份间雨水滞留效应有较大影响．不同植物由于其滞水能力、蒸散发能力和植被生理活性等的不同，在不同月份表现出不同的雨水滞留能力．研究结果可为绿色屋顶的性能评估和推广应用提供科学指导．
Abstract:
Green roof can reduce runoff by its rainwater retention ability and has been widely used in storm water management. The rainwater retention performance of green roof fluctuates with the variation of rainfall frequency and monthly rainfall conditions. In this study, we conduct a continuous monitoring of 58 rainfall events over 18 months on four different vegetation green roofs in Shenzhen, China. We analyze the variation of the rainwater retention effect of green roofs and the influencing factors. The results show that, the rainwater retention depth of green roof for single rainfall event is between 0.4 mm and 37 mm, the rainwater retention rate is in the range of 2% to 100%; the monthly rainwater retention depth is 13-148 mm and its retention rate is 29%-70%; the annual total rainwater retention depth of green roof is 610-660 mm and the total retention rate is 44%-49%. The rainwater retention rate and the retention amount are negatively and positively correlated with rainfall depth respectively, and both are significantly positively correlated with the antecedent dry period in daytime. In addition, monthly average solar radiation, vegetation types and change of plant coverage also have a great influence on the retention effect of rain water between months. Different plants show very different rainwater retention performance in different months due to their differences in evapotranspiration ability and physiological activity of vegetation. Our research can provide scientific guidance for the performance evaluation and application of green roofs.

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备注/Memo

备注/Memo:
Received：2020-04-28；Accepted：2020-05-14
Foundation：Project of Technology & Innovation Commission of Shenzhen Municipality (ZDSYS20140509094114169); Project of Technology Innovation in Water Resources of Guangdong Province (2012-13)
Corresponding author：Professor QIN Huapeng. E-mail: qinhp@pkusz.edu.cn
Citation：HU Yinchao, QIN Huapeng, Lin Zixuan. Variation and influencing factors of rainwater retention of green roofs in Shenzhen［J］. Journal of Shenzhen University Science and Engineering, 2020, 37(4): 347-354.（in Chinese）
基金项目：深圳市重点实验室提升资助项目（ZDSY201405094114 169）；广东省水利科技创新资助项目（2012-13）
作者简介：胡尹超（1996—），北京大学硕士研究生．研究方向：绿色基础设施与海绵城市，城市雨水管理，绿色屋顶. E-mail:yinchaohu@sz.pku.edu.cn
引文：胡尹超，秦华鹏，林子璇. 深圳绿色屋顶雨水滞留效应变化及其影响因素［J］. 深圳大学学报理工版，2020，37(4)：347-354.
更新日期/Last Update: 2020-07-26