Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment

Mississippi Embayment (ME) is one of the fastest groundwater depletion regions around the world, while the impacts of climate change on groundwater resources in the region are complex and basically unknown. Using the U.S. Geological Survey's Mississippi Embayment Regional Aquifer Study (MERAS)...

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Autores principales:	Ying Ouyang, Yongshan Wan, Wei Jin, Theodor D. Leininger, Gary Feng, Yuguo Han
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	climate change groundwater resource meras model mississippi embayment Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/d0f2b44a09fd44f6ac03ad5e2042940d
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spelling	oai:doaj.org-article:d0f2b44a09fd44f6ac03ad5e2042940d2021-11-05T19:07:14ZImpact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment2040-22442408-935410.2166/wcc.2021.326https://doaj.org/article/d0f2b44a09fd44f6ac03ad5e2042940d2021-09-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/6/2245https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354Mississippi Embayment (ME) is one of the fastest groundwater depletion regions around the world, while the impacts of climate change on groundwater resources in the region are complex and basically unknown. Using the U.S. Geological Survey's Mississippi Embayment Regional Aquifer Study (MERAS) model, such a challenge was addressed through the base, wet, and dry simulation scenarios. Over the 137-year simulation period from 1870 to 2007, the cumulative aquifer storage depletions were 1.70 × 1011, 1.73 × 1011, and 1.67 × 1011 m3, respectively, for the base, dry, and wet scenarios. As compared with that of the base scenario, the aquifer storage depletions were only 1.76% more for the dry scenario and 1.8% less for the wet scenario. A multiple regression analysis showed that the aquifer storage depletion rate was controlled more by the groundwater pumping and stream leakage rates and less by the groundwater net recharge rate. Groundwater table variation in the forest land was much smaller than in the crop land. Results suggested that groundwater pumping rather than climate change was a key driving force of groundwater depletion in the ME. Our findings provide a useful reference to water resource managers, foresters, and farmers in the ME and around the world when developing their groundwater supply strategies. HIGHLIGHTS One of the world largest groundwater models (i.e., MERAS) was applied.; Agricultural pumping rather than climate change is a key driving force of groundwater depletion.; Aquifer storage depletion was controlled by the groundwater pumping and stream leakage.; Groundwater table variation in the forest land was much smaller than in the crop land.;Ying OuyangYongshan WanWei JinTheodor D. LeiningerGary FengYuguo HanIWA Publishingarticleclimate changegroundwater resourcemeras modelmississippi embaymentEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 6, Pp 2245-2255 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change groundwater resource meras model mississippi embayment Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	climate change groundwater resource meras model mississippi embayment Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Ying Ouyang Yongshan Wan Wei Jin Theodor D. Leininger Gary Feng Yuguo Han Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
description	Mississippi Embayment (ME) is one of the fastest groundwater depletion regions around the world, while the impacts of climate change on groundwater resources in the region are complex and basically unknown. Using the U.S. Geological Survey's Mississippi Embayment Regional Aquifer Study (MERAS) model, such a challenge was addressed through the base, wet, and dry simulation scenarios. Over the 137-year simulation period from 1870 to 2007, the cumulative aquifer storage depletions were 1.70 × 1011, 1.73 × 1011, and 1.67 × 1011 m3, respectively, for the base, dry, and wet scenarios. As compared with that of the base scenario, the aquifer storage depletions were only 1.76% more for the dry scenario and 1.8% less for the wet scenario. A multiple regression analysis showed that the aquifer storage depletion rate was controlled more by the groundwater pumping and stream leakage rates and less by the groundwater net recharge rate. Groundwater table variation in the forest land was much smaller than in the crop land. Results suggested that groundwater pumping rather than climate change was a key driving force of groundwater depletion in the ME. Our findings provide a useful reference to water resource managers, foresters, and farmers in the ME and around the world when developing their groundwater supply strategies. HIGHLIGHTS One of the world largest groundwater models (i.e., MERAS) was applied.; Agricultural pumping rather than climate change is a key driving force of groundwater depletion.; Aquifer storage depletion was controlled by the groundwater pumping and stream leakage.; Groundwater table variation in the forest land was much smaller than in the crop land.;
format	article
author	Ying Ouyang Yongshan Wan Wei Jin Theodor D. Leininger Gary Feng Yuguo Han
author_facet	Ying Ouyang Yongshan Wan Wei Jin Theodor D. Leininger Gary Feng Yuguo Han
author_sort	Ying Ouyang
title	Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
title_short	Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
title_full	Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
title_fullStr	Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
title_full_unstemmed	Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment
title_sort	impact of climate change on groundwater resource in a region with a fast depletion rate: the mississippi embayment
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/d0f2b44a09fd44f6ac03ad5e2042940d
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Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment

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