期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 715, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.136918
关键词
Bioretention systems; Growing media; Vegetation; Plant-media interaction; Hydrological performance; Water quality performance
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) Collaborative Research and Development (CRD) program
- Town of Okotoks
- City of Calgary
- Bow River Basin Council
- Source2Source
Bioretention systems have gained considerable popularity as a more natural approach to stormwater management in urban environments. The choice of bioretention media is frequently cited as one of the critical design parameters with the ultimate impact on the performance of the system. The goal of this review is to highlight data that challenge the importance of media as being the dominant design parameter and argue that the long-term performance is shaped by the interactions between media and the living components of a bioretention system, especially vegetation. Some of the key interactions are related to the impact of plant roots on media pore structure, which has implications on infiltration, storage capacity, and treatment. Another relevant interaction pertains to evapotranspiration and the associated impacts on the water balance and the water quality performance of bioretention systems. The impacts of vegetation on the media are highlighted and actual, as well as potential, impacts of plant-media interactions on bioretention performance are presented. (C) 2020 Elsevier B.V. All rights reserved.
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