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Title: Assessing hydrological effects of bioretention cells for urban stormwater runoff in response to climatic changes
Authors: Wang, Mo
Zhang, Dongqing
Lou, Siwei
Hou, Qinghe
Liu, Yijie
Cheng, Yuning
Qi, Jinda
Tan, Soon Keat
Keywords: Engineering::Civil engineering
Issue Date: 2019
Source: Wang, M., Zhang, D., Lou, S., Hou, Q., Liu, Y., Cheng, Y., . . . Tan, S. K. (2019). Assessing Hydrological Effects of Bioretention Cells for Urban Stormwater Runoff in Response to Climatic Changes. Water, 11(5), 997-. doi:10.3390/w11050997
Series/Report no.: Water
Abstract: An investigation into the effectiveness of bioretention cells (BCs) under potential climatic changes was conducted using representative concentration pathways. A case study of Guangzhou showed changes in peak runoff in climate change scenarios, with obvious growth in RCP8.5 and slight growth in RCP2.6. The performance of BCs on multiple parameters, including reduction of runoff volume, peak runoff, and first flush, were examined in different design storms using a hydrology model (SWMM). The effectiveness of BCs varied non-linearly with scale. Their performance fell by varying amounts in the various scenarios. BCs could provide sufficient effects in response to short-return-period and short-duration storms, but the performance of BCs decreased with heavy storms, especially considering climate change. Hence, BCs cannot replace grey infrastructure but should be integrated with them. The method developed in this study could be useful in the planning and design of low impact development in view of future climate changes.
ISSN: 2073-4441
DOI: 10.3390/w11050997
Rights: © 2019 by the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles
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