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作者

R. Nasrollahpour;A. Skorobogatov;J. He;C. Valeo;A. Chu;B. van Duin

来源

URBAN FORESTRY & URBAN GREENING,Vol.74,Issue1,Article 127680

语言

英文

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作者单位

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Ave S.E., Calgary, AB T2G 4K8, Canada;Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA;USDA Forest Service, Northern Research Station, NRS-08, Newark, DE, USA;USDA Forest Service, Northern Research Station, NRS-08, Baltimore, MD, USA;USDA Forest Service, Northern Research Station, NRS-08, Delaware, OH, USA;USDA Forest Service, Northern Research Station, NRS-08, Philadelphia, PA, USA;School of Ecosystem and Forest Sciences, The University of Melbourne, 500 Yarra Boulevard, Richmond, Victoria 3121, Australia;Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407, USA;Urban Forest Ecosystems Institute, California Polytechnic State University, San Luis Obispo, CA 93407, USA;Department of Computer Science and Software Engineering, California Polytechnic State University, San Luis Obispo, CA 93407, USA;West Coast Arborists (WCA), Anaheim, CA 92806, USA;Social Sciences Department, California Polytechnic University, San Luis Obispo, CA 93407, USA;Department of Economics, California Polytechnic State University, San Luis Obispo, CA 93407, USA;Department of Plant Sciences, University of California, Davis, CA 95616, USA;UFP Energy, Environment and Health Research Unit (FP-ENAS), University Fernando Pessoa (UFP), Praça 9 de Abril 349, 4249-004 Porto, Portugal;Center for Functional Ecology - Science for People & the Planet (CFE), TERRA Associate Laboratory, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;InBIO-Rede de Investigação em Biodiversidade e Biologia Evolutiva, CIBIO, Campus Agrário de Vairao, Universidade do Porto, 4485-661 Vairao, Portugal;Departamento de Geociências, Ambiente e Ordenamento do Território, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre 687, 4169-007 Porto, Portugal;NeuroLandscape Foundation, Suwalska 8/78, 03-252 Warsaw, Poland;Centre for Public Administration and Public Policies (CAPP), Institute of Social and Political Sciences (ISCSP), University of Lisboa, 1300-663 Lisboa, Portugal;Institute of Sociology of the University of Porto (ISUP), Faculty of Arts and Humanities of the University of Porto (FLUP), s / n, 4150-564 Porto, Portugal;Center for Transdisciplinary Research «Culture, Space and Memory» (CITCEM), Faculty of Arts and Humanities of the University of Porto (FLUP), Via Panorâmica Edgar Cardoso s/n, 4150-564 Porto, Portugal;Universidade Federal de São Paulo - UNIFESP, Diadema, Estado de São Paulo, Brazil;Secretaria do Verde e Meio Ambiente (SVMA) - Prefeitura do Município de São Paulo, São Paulo, Brazil;Instituto de Pesquisas Ambientais, Secretaria de Infraestrutura e Meio Ambiente, São Paulo, Brazil;Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, Brazil;The Program in Planning and Use of Renewable Resource, Federal University of São Carlos, Sorocaba Campus, João Leme dos Santos Road (SP-264), km 110, Sorocaba, SP, Brazil;Department of Ecology, Institute of Biosciences, University of São Paulo, R. do Matão, 321, São Paulo, SP, Brazil;Department of Environmental Science, Federal University of São Carlos, Sorocaba Campus, João Leme dos Santos Road (SP-264), km 110, Sorocaba, SP, Brazil

摘要

Bioretention systems have known benefits for managing urban stormwater, but there remain knowledge gaps about evapotranspiration (ET) and its role in these systems. This paper investigated how design parameters including growing media and vegetation, as well as climatic variables, can influence ET in bioretention systems. To this end, twenty-four bioretention mesocosms constructed using three media types (i.e., two sandy media types and clay loam mixed with wood chips) and planted with three vegetation types (i.e., herbaceous mixture, woody mixture, and turfgrass as control) in Okotoks, Alberta, Canada were monitored during the growing seasons (from May to October) between 2018 and 2020. The media moisture in the mesocosms was monitored at the depths of 20 and 40 cm to study how the design parameters and their interactions could influence ET. The results confirmed the roles of design and climatic variables on ET, while their effects were more prominent at the surface layer. The sandy media with the low organic matter (SD1) and the woody vegetation appeared to outperform the other media and vegetation types in promoting ET. The findings demonstrated the non-stationary nature of the ET function in the mesocosms. The effects of the design variables, in particular the vegetation, became more prominent over time. In addition, the impact of media-vegetation interactions on ET was identified. The results suggest the need for optimizing bioretention systems with consideration to the design variables, whose roles on ET are time- and depth-variant, to promote ET and, in turn, bioretention performance.