Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China

Global warming will significantly change patterns of precipitation (P) and evapotranspiration (E) and thus the surface water availability (P minus E, P–E). Changes in P–E will challenge freshwater supply, food security, and sustainability of the ecosystems. Therefore, understanding the spatiotempora...

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Autores principales:	Fubo Zhao, Shuai Ma, Yiping Wu
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	climate warming dry-season water availability evapotranspiration precipitation water resources Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/c654124469c34fd9ab0786c0e4b9730b
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spelling	oai:doaj.org-article:c654124469c34fd9ab0786c0e4b9730b2021-11-16T05:14:03ZChanges in Dry-Season Water Availability and Attributions in the Yellow River Basin, China2296-665X10.3389/fenvs.2021.762137https://doaj.org/article/c654124469c34fd9ab0786c0e4b9730b2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenvs.2021.762137/fullhttps://doaj.org/toc/2296-665XGlobal warming will significantly change patterns of precipitation (P) and evapotranspiration (E) and thus the surface water availability (P minus E, P–E). Changes in P–E will challenge freshwater supply, food security, and sustainability of the ecosystems. Therefore, understanding the spatiotemporal change in P–E and its drivers is key for water resources management. Here, we quantified the changes in water availability during the driest month of the year and identified its drivers in the Yellow River Basin (YRB), China, during 1982–2016. Our results showed that 89.6% of the YRB showed declining dry-season water availability in 2000–2016 compared with 1982–1999, although the total dry-season water resources (defined as the proportion of the sum of monthly P–E to the P) remained nearly unchanged due to the increased P. Changes in seasonal P and E contributed to 87.0 and 99.0% declines in dry-season water availability, respectively, demonstrating the key role of E in net seasonal water fluxes. Increased air temperature (41.8%), vegetation greening (30.8%), and vapor pressure deficit (19.2%) were the main factors driving changes in E in the YRB during the study period. Our study highlighted a drier dry season in the YRB during 1982–2016 and illustrated that climate and vegetation changes played important roles in driving changes in dry-season water availability. Seasonal water fluxes must be considered in future water resources management in the YRB, especially in the context of climate warming and revegetation programs.Fubo ZhaoShuai MaYiping WuFrontiers Media S.A.articleclimate warmingdry-season water availabilityevapotranspirationprecipitationwater resourcesEnvironmental sciencesGE1-350ENFrontiers in Environmental Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate warming dry-season water availability evapotranspiration precipitation water resources Environmental sciences GE1-350
spellingShingle	climate warming dry-season water availability evapotranspiration precipitation water resources Environmental sciences GE1-350 Fubo Zhao Shuai Ma Yiping Wu Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
description	Global warming will significantly change patterns of precipitation (P) and evapotranspiration (E) and thus the surface water availability (P minus E, P–E). Changes in P–E will challenge freshwater supply, food security, and sustainability of the ecosystems. Therefore, understanding the spatiotemporal change in P–E and its drivers is key for water resources management. Here, we quantified the changes in water availability during the driest month of the year and identified its drivers in the Yellow River Basin (YRB), China, during 1982–2016. Our results showed that 89.6% of the YRB showed declining dry-season water availability in 2000–2016 compared with 1982–1999, although the total dry-season water resources (defined as the proportion of the sum of monthly P–E to the P) remained nearly unchanged due to the increased P. Changes in seasonal P and E contributed to 87.0 and 99.0% declines in dry-season water availability, respectively, demonstrating the key role of E in net seasonal water fluxes. Increased air temperature (41.8%), vegetation greening (30.8%), and vapor pressure deficit (19.2%) were the main factors driving changes in E in the YRB during the study period. Our study highlighted a drier dry season in the YRB during 1982–2016 and illustrated that climate and vegetation changes played important roles in driving changes in dry-season water availability. Seasonal water fluxes must be considered in future water resources management in the YRB, especially in the context of climate warming and revegetation programs.
format	article
author	Fubo Zhao Shuai Ma Yiping Wu
author_facet	Fubo Zhao Shuai Ma Yiping Wu
author_sort	Fubo Zhao
title	Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
title_short	Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
title_full	Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
title_fullStr	Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
title_full_unstemmed	Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China
title_sort	changes in dry-season water availability and attributions in the yellow river basin, china
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/c654124469c34fd9ab0786c0e4b9730b
work_keys_str_mv	AT fubozhao changesindryseasonwateravailabilityandattributionsintheyellowriverbasinchina AT shuaima changesindryseasonwateravailabilityandattributionsintheyellowriverbasinchina AT yipingwu changesindryseasonwateravailabilityandattributionsintheyellowriverbasinchina
_version_	1718426691924131840

Changes in Dry-Season Water Availability and Attributions in the Yellow River Basin, China

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