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Article

SWMM-Based Assessment of Urban Mountain Stormwater Management Effects under Different LID Scenarios

School of Architecture, Southeast University, Nanjing 210096, China
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Academic Editor: Jose G. Vasconcelos
Water 2022, 14(1), 78; https://doi.org/10.3390/w14010078
Received: 24 November 2021 / Revised: 22 December 2021 / Accepted: 27 December 2021 / Published: 3 January 2022
(This article belongs to the Section Urban Water Management)
The types of urban mountains are diverse, and the surrounding environment is complex. The conditions of runoff generation and convergence in different regions of the same mountain vary. Using the Lijia Mountain in China’s Nanjing City as a case study, this study investigates the effects of such mountain-region-based LID (Low Impact Development) systems. Based on the hydrological analysis of this mountain region, SWMM (Storm Water Management Model) software is used to model and compare the runoff control effects of two LID systems schemes, namely segmental detention and retention and terminal detention and retention. The study’s findings demonstrate that the terminal detention and retention scheme can effectively delay the time of peak flooding and partly reduce peak discharge. In contrast, the segmental detention and retention scheme has a limited delay effect on flood peaks but significantly reduces the peak discharge. This research breaks through the limitations of the previous construction of a single LID scheme for mountainous regions in built-up urban areas. It serves as a theoretical model and technical reference for selecting LID scenarios in response to different mountain conditions. View Full-Text
Keywords: low impact development; mountainous urban regions; stormwater management; SWMM simulation; effect assessment low impact development; mountainous urban regions; stormwater management; SWMM simulation; effect assessment
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MDPI and ACS Style

Yuan, Y.; Gan, Y.; Xu, Y.; Xie, Q.; Shen, Y.; Yin, Y. SWMM-Based Assessment of Urban Mountain Stormwater Management Effects under Different LID Scenarios. Water 2022, 14, 78. https://doi.org/10.3390/w14010078

AMA Style

Yuan Y, Gan Y, Xu Y, Xie Q, Shen Y, Yin Y. SWMM-Based Assessment of Urban Mountain Stormwater Management Effects under Different LID Scenarios. Water. 2022; 14(1):78. https://doi.org/10.3390/w14010078

Chicago/Turabian Style

Yuan, Yangyang, Yu Gan, Yuhan Xu, Qining Xie, Yuqing Shen, and Yue Yin. 2022. "SWMM-Based Assessment of Urban Mountain Stormwater Management Effects under Different LID Scenarios" Water 14, no. 1: 78. https://doi.org/10.3390/w14010078

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