Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China

China recently commenced the Sponge City initiative for the effective management of urban stormwater runoff. Numerous studies have been carried out to evaluate the cost-effectiveness of low impact development (LID) practices in Sponge City planning and implementation. However, most of the studies we...

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Autores principales:	Zhenyu Zhang, Junjie Gu, Guoshun Zhang, Wenjing Ma, Lei Zhao, Ping Ning, Jian Shen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	large-scale high-plateau mountainous watershed low impact development optimization sponge city initiative sustain swmm Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/33e220f556674b369d19e4f64cbdf98a
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spelling	oai:doaj.org-article:33e220f556674b369d19e4f64cbdf98a2021-11-05T18:41:01ZDesign of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China2040-22442408-935410.2166/wcc.2019.120https://doaj.org/article/33e220f556674b369d19e4f64cbdf98a2021-02-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/1/201https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354China recently commenced the Sponge City initiative for the effective management of urban stormwater runoff. Numerous studies have been carried out to evaluate the cost-effectiveness of low impact development (LID) practices in Sponge City planning and implementation. However, most of the studies were at the site- or subcatchment scale, and few were conducted at the watershed scale, given the dramatically increased routing complexity and number of decision variables. This study demonstrates the cost-effective Sponge City planning process for a 25.90 km2 high-plateau watershed in southwest China. The Stormwater Management Model was coupled with the System for Urban Stormwater Treatment and Analysis Integrated (SUSTAIN) model to perform both continuous simulations and watershed-level optimization analyses, using the reduction of 85% annual runoff volume as the optimization target. Based on over 11,000 optimization runs, a near-optimal aggregated LID scenario was identified for each subcatchment. The aggregated LID size was first converted into a generic LID storage volume for individual subcatchments, and the storage volume was then disaggregated into site-level LID layouts regarding specific site conditions. The disaggregated LID layout yielded an annual average runoff volume reduction of 87.61% and close to 85% reduction for the annual average total suspended solids, total nitrogen, and total phosphorus loads. The systematic approach outlined in this study could be used for watershed-level Sponge City planning and implementation analyses in other cities.Zhenyu ZhangJunjie GuGuoshun ZhangWenjing MaLei ZhaoPing NingJian ShenIWA Publishingarticlelarge-scale high-plateau mountainous watershedlow impact developmentoptimizationsponge city initiativesustainswmmEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 1, Pp 201-222 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	large-scale high-plateau mountainous watershed low impact development optimization sponge city initiative sustain swmm Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	large-scale high-plateau mountainous watershed low impact development optimization sponge city initiative sustain swmm Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Zhenyu Zhang Junjie Gu Guoshun Zhang Wenjing Ma Lei Zhao Ping Ning Jian Shen Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
description	China recently commenced the Sponge City initiative for the effective management of urban stormwater runoff. Numerous studies have been carried out to evaluate the cost-effectiveness of low impact development (LID) practices in Sponge City planning and implementation. However, most of the studies were at the site- or subcatchment scale, and few were conducted at the watershed scale, given the dramatically increased routing complexity and number of decision variables. This study demonstrates the cost-effective Sponge City planning process for a 25.90 km2 high-plateau watershed in southwest China. The Stormwater Management Model was coupled with the System for Urban Stormwater Treatment and Analysis Integrated (SUSTAIN) model to perform both continuous simulations and watershed-level optimization analyses, using the reduction of 85% annual runoff volume as the optimization target. Based on over 11,000 optimization runs, a near-optimal aggregated LID scenario was identified for each subcatchment. The aggregated LID size was first converted into a generic LID storage volume for individual subcatchments, and the storage volume was then disaggregated into site-level LID layouts regarding specific site conditions. The disaggregated LID layout yielded an annual average runoff volume reduction of 87.61% and close to 85% reduction for the annual average total suspended solids, total nitrogen, and total phosphorus loads. The systematic approach outlined in this study could be used for watershed-level Sponge City planning and implementation analyses in other cities.
format	article
author	Zhenyu Zhang Junjie Gu Guoshun Zhang Wenjing Ma Lei Zhao Ping Ning Jian Shen
author_facet	Zhenyu Zhang Junjie Gu Guoshun Zhang Wenjing Ma Lei Zhao Ping Ning Jian Shen
author_sort	Zhenyu Zhang
title	Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
title_short	Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
title_full	Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
title_fullStr	Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
title_full_unstemmed	Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China
title_sort	design of urban runoff pollution control based on the sponge city concept in a large-scale high-plateau mountainous watershed: a case study in yunnan, china
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/33e220f556674b369d19e4f64cbdf98a
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Design of urban runoff pollution control based on the Sponge City concept in a large-scale high-plateau mountainous watershed: a case study in Yunnan, China

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