Assessment of Low-Impact development for managing aquatic ecosystem

Urban aquatic life communities are among the most endangered species in the United States, and their decline has been linked to pollutants and sediments from urban development. Low Impact Development (LID) practices were applied to manage urban stormwater runoff as part of green infrastructure. Howe...

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Autor principal:	Sa'd Shannak
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Urbanization SWAT Aquatic Life Base Flow Low Impact Development Texas Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/8f7a02a8437643109184f130d0150f87
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spelling	oai:doaj.org-article:8f7a02a8437643109184f130d0150f872021-12-01T05:01:00ZAssessment of Low-Impact development for managing aquatic ecosystem1470-160X10.1016/j.ecolind.2021.108235https://doaj.org/article/8f7a02a8437643109184f130d0150f872021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21009006https://doaj.org/toc/1470-160XUrban aquatic life communities are among the most endangered species in the United States, and their decline has been linked to pollutants and sediments from urban development. Low Impact Development (LID) practices were applied to manage urban stormwater runoff as part of green infrastructure. However, there remains a debate regarding the role played by LIDs in protecting aquatic life due to a lack of large-scale evidence. Given this knowledge gap, a Sub-hourly time step SWAT (Soil Water Assessment Tool) model was calibrated and validated to evaluate the potential impact of LID practices on aquatic life in the Blunn Creek Watershed in Austin-Texas.The evaluation of LID practices performance was based on (i) incorporating and representing these practices into the SWAT model, (ii) studying output flows, and (iii) assessing watershed hydrological responses and their impact on aquatic life communities. Several measures such as reduction in peak flows, increasing both baseflows, and Aquatic Life Potential (AQP) values were used to assess flows coming out of LID practices. The types of LIDs considered were raingarden, permeable pavement and detention pond.Results showed that a combination of permeable pavement and raingarden resulted in the greatest percentage of increase in AQP values and baseflows and the greatest reduction in peak flows. The detention pond had the least percentage increase in AQP and baseflows as well as the least percentage of reduction in peak flows. The findings of this study are likely to be of interest to policymakers. LIDs are efficient applications on a watershed scale and could contribute to reduce total runoff and enhance outflow water quality. This study provides an in-depth discussion over the latest essence of LID technologies, which magnify their capabilities to control stormwater, while also protecting urban aquatic life. Cities and developers should encourage the development of green cities using LID technologies.Sa'd ShannakElsevierarticleUrbanizationSWATAquatic LifeBase FlowLow Impact DevelopmentTexasEcologyQH540-549.5ENEcological Indicators, Vol 132, Iss , Pp 108235- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Urbanization SWAT Aquatic Life Base Flow Low Impact Development Texas Ecology QH540-549.5
spellingShingle	Urbanization SWAT Aquatic Life Base Flow Low Impact Development Texas Ecology QH540-549.5 Sa'd Shannak Assessment of Low-Impact development for managing aquatic ecosystem
description	Urban aquatic life communities are among the most endangered species in the United States, and their decline has been linked to pollutants and sediments from urban development. Low Impact Development (LID) practices were applied to manage urban stormwater runoff as part of green infrastructure. However, there remains a debate regarding the role played by LIDs in protecting aquatic life due to a lack of large-scale evidence. Given this knowledge gap, a Sub-hourly time step SWAT (Soil Water Assessment Tool) model was calibrated and validated to evaluate the potential impact of LID practices on aquatic life in the Blunn Creek Watershed in Austin-Texas.The evaluation of LID practices performance was based on (i) incorporating and representing these practices into the SWAT model, (ii) studying output flows, and (iii) assessing watershed hydrological responses and their impact on aquatic life communities. Several measures such as reduction in peak flows, increasing both baseflows, and Aquatic Life Potential (AQP) values were used to assess flows coming out of LID practices. The types of LIDs considered were raingarden, permeable pavement and detention pond.Results showed that a combination of permeable pavement and raingarden resulted in the greatest percentage of increase in AQP values and baseflows and the greatest reduction in peak flows. The detention pond had the least percentage increase in AQP and baseflows as well as the least percentage of reduction in peak flows. The findings of this study are likely to be of interest to policymakers. LIDs are efficient applications on a watershed scale and could contribute to reduce total runoff and enhance outflow water quality. This study provides an in-depth discussion over the latest essence of LID technologies, which magnify their capabilities to control stormwater, while also protecting urban aquatic life. Cities and developers should encourage the development of green cities using LID technologies.
format	article
author	Sa'd Shannak
author_facet	Sa'd Shannak
author_sort	Sa'd Shannak
title	Assessment of Low-Impact development for managing aquatic ecosystem
title_short	Assessment of Low-Impact development for managing aquatic ecosystem
title_full	Assessment of Low-Impact development for managing aquatic ecosystem
title_fullStr	Assessment of Low-Impact development for managing aquatic ecosystem
title_full_unstemmed	Assessment of Low-Impact development for managing aquatic ecosystem
title_sort	assessment of low-impact development for managing aquatic ecosystem
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/8f7a02a8437643109184f130d0150f87
work_keys_str_mv	AT sadshannak assessmentoflowimpactdevelopmentformanagingaquaticecosystem
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Assessment of Low-Impact development for managing aquatic ecosystem

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