Assessment of a green roof practice using the coupled SWMM and HYDRUS models

被引:54
作者
Baek, SangSoo [1 ]
Ligaray, Mayzonee [1 ]
Pachepsky, Yakov [2 ]
Chun, Jong Ahn [3 ]
Yoon, Kwang-Sik [4 ]
Park, Yongeun [5 ]
Cho, Kyung Hwa [1 ]
机构
[1] Ulsan Natl Inst Sci & Technol, Sch Urban & Environm Engn, Ulsan 44919, South Korea
[2] USDA ARS, Environm Microbial & Food Safety Lab, Beltsville, MD USA
[3] APEC Climate Ctr, Climate Analyt Dept, Busan 48058, South Korea
[4] Chonnam Natl Univ, Dept Rural & Biosyst Engn, Gwangju, South Korea
[5] Konkuk Univ, Sch Civil & Environm Engn, Neumgdong Ro 120, Seoul, South Korea
基金
新加坡国家研究基金会;
关键词
Low impact development; Storm water management model; Soil water movement; HYDRUS; LOW IMPACT DEVELOPMENT; SENSITIVITY-ANALYSIS; HYDRAULIC CONDUCTIVITY; MANAGEMENT-PRACTICES; NUMERICAL-ANALYSIS; STORMWATER RUNOFF; COMPUTER-PROGRAM; URBAN CATCHMENTS; WATER; SOIL;
D O I
10.1016/j.jenvman.2019.109920
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Green roof can mitigate urban stormwater and improve environmental, economic, and social conditions. Various modeling approaches have been effectively employed to implement a green roof, but previous models employed simplifications to simulate water movement in green roof systems. To address this issue, we developed a new modeling tool (SWMM-H) by coupling the stormwater management and HYDRUS-1D models to improve simulations of hydrological processes. We selected green roof systems to evaluate the coupled model. Rainfall-runoff experiments were conducted for a pilot-scale green roof and urban subbasin. Soil moisture in the green roof and runoff volume in the subbasin were simulated more accurately by using SWMM-H instead of SWMM. The scenario analysis showed that SWMM-H selected sandy loam for controlling runoff whereas SWMM recommended sand. In conclusion, SWMM-H could be a useful tool for accurately understanding hydrological processes in green roofs.
引用
收藏
页数:12
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