Lee Joo Young Lee, Min Jung Han, Mooyoung 2024-01-20T07:31:25Z 2024-01-20T07:31:25Z 2021-09-05 2015-04 0301-4797 https://pubs.kist.re.kr/handle/201004/125619 The use of green roofs is gaining increased recognition in many countries as a solution that can be used to improve environmental quality and reduce runoff quantity. To achieve these goals, pilot-scale green roof assemblies have been constructed and operated in an urban setting. From a stormwater management perspective, green roofs are 42.8-60.8% effective in reducing runoff for 200 mm soil depth and 13.8-34.4% effective in reducing runoff for 150 mm soil depth. By using Spearman rank correlation analysis, high rainfall intensity was shown to have a negative relationship with delayed occurrence time, demonstrating that the soil media in green roofs do not efficiently retain rainwater. Increasing the number of antecedent dry days can help to improve water retention capacity and delay occurrence time. From the viewpoint of runoff water quality, green roofs are regarded as the best management practice by filtration and adsorption through growth media (soil). (C) 2015 Elsevier Ltd. All rights reserved. English ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD A pilot study to evaluate runoff quantity from green roofs Article 10.1016/j.jenvman.2015.01.028 1 JOURNAL OF ENVIRONMENTAL MANAGEMENT, v.152, pp.171 - 176 JOURNAL OF ENVIRONMENTAL MANAGEMENT 152 171 176 N scie scopus 000350519400020 2-s2.0-84922261122 Environmental Sciences Environmental Sciences & Ecology Article QUALITY PERFORMANCE Green roofs Environmental quality Reducing runoff quantity Spearman rank correlation Best management practice (BMP)