Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China

Lakes are important natural water reservoirs that connect other water bodies and play essential roles in water supply, ecological preservation, and climate regulation. Because of global climate change and human activities, many lakes worldwide are facing severe challenges, such as ecological degrada...

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Autores principales:	Yifan Han, Yuanzheng Zhai, Mengshen Guo, Xinyi Cao, Hong Lu, Jie Li, Shengrui Wang, Weifeng Yue
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydrochemistry stable isotope water cycle water diversion Lake Ulansuhai Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/3f972d1f7f954ba9ba1f2f7588ab364d
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spelling	oai:doaj.org-article:3f972d1f7f954ba9ba1f2f7588ab364d2021-11-11T19:55:18ZHydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China10.3390/w132130332073-4441https://doaj.org/article/3f972d1f7f954ba9ba1f2f7588ab364d2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3033https://doaj.org/toc/2073-4441Lakes are important natural water reservoirs that connect other water bodies and play essential roles in water supply, ecological preservation, and climate regulation. Because of global climate change and human activities, many lakes worldwide are facing severe challenges, such as ecological degradation and reductions in their water storage, levels, surface areas, and quality. Water diversion into lakes is considered an effective measure to address these challenges and has attracted much attention. Water has been diverted into Lake Ulansuhai through drainage channels from the Yellow River since 2013. This shallow lake is located in arid northern China and is greatly affected by high salinity and eutrophication. The lake is the lowest area in the Hetao basin and is a sink for terrestrial water in this region. High salinity in lake water, drainage channels, and groundwater caused by NaCl is an ongoing problem; however, water diversion has played an important role in dilution. The main hydrochemical type in the lake water is Cl·HCO<sub>3</sub>–Na·Mg, while those in the drainage channels and the groundwater show more diversity because of spatial differences. The main source of water in the lake (52–60%) is that diverted through six drainage channels on the west bank, followed by meteoric precipitation (36–38%). Groundwater recharge to the lake is minimal (west bank: 2–7%, and east bank: 1–5%). Extensive evaporation occurs in the lake before the lake water is discharged into the Yellow River through a waste canal. The hydrochemical evolution and salinization of the lake are dominated by the six drainage channels, followed by evaporation from the lake surface. Thus, resolution of soil salinization in the Hetao irrigation area is key to addressing salinity issues in the lake. This study will be helpful for the planning of future water diversion and ecological restoration.Yifan HanYuanzheng ZhaiMengshen GuoXinyi CaoHong LuJie LiShengrui WangWeifeng YueMDPI AGarticlehydrochemistrystable isotopewater cyclewater diversionLake UlansuhaiHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3033, p 3033 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrochemistry stable isotope water cycle water diversion Lake Ulansuhai Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	hydrochemistry stable isotope water cycle water diversion Lake Ulansuhai Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Yifan Han Yuanzheng Zhai Mengshen Guo Xinyi Cao Hong Lu Jie Li Shengrui Wang Weifeng Yue Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
description	Lakes are important natural water reservoirs that connect other water bodies and play essential roles in water supply, ecological preservation, and climate regulation. Because of global climate change and human activities, many lakes worldwide are facing severe challenges, such as ecological degradation and reductions in their water storage, levels, surface areas, and quality. Water diversion into lakes is considered an effective measure to address these challenges and has attracted much attention. Water has been diverted into Lake Ulansuhai through drainage channels from the Yellow River since 2013. This shallow lake is located in arid northern China and is greatly affected by high salinity and eutrophication. The lake is the lowest area in the Hetao basin and is a sink for terrestrial water in this region. High salinity in lake water, drainage channels, and groundwater caused by NaCl is an ongoing problem; however, water diversion has played an important role in dilution. The main hydrochemical type in the lake water is Cl·HCO<sub>3</sub>–Na·Mg, while those in the drainage channels and the groundwater show more diversity because of spatial differences. The main source of water in the lake (52–60%) is that diverted through six drainage channels on the west bank, followed by meteoric precipitation (36–38%). Groundwater recharge to the lake is minimal (west bank: 2–7%, and east bank: 1–5%). Extensive evaporation occurs in the lake before the lake water is discharged into the Yellow River through a waste canal. The hydrochemical evolution and salinization of the lake are dominated by the six drainage channels, followed by evaporation from the lake surface. Thus, resolution of soil salinization in the Hetao irrigation area is key to addressing salinity issues in the lake. This study will be helpful for the planning of future water diversion and ecological restoration.
format	article
author	Yifan Han Yuanzheng Zhai Mengshen Guo Xinyi Cao Hong Lu Jie Li Shengrui Wang Weifeng Yue
author_facet	Yifan Han Yuanzheng Zhai Mengshen Guo Xinyi Cao Hong Lu Jie Li Shengrui Wang Weifeng Yue
author_sort	Yifan Han
title	Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
title_short	Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
title_full	Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
title_fullStr	Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
title_full_unstemmed	Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China
title_sort	hydrochemical and isotopic characterization of the impact of water diversion on water in drainage channels, groundwater, and lake ulansuhai in china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3f972d1f7f954ba9ba1f2f7588ab364d
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Hydrochemical and Isotopic Characterization of the Impact of Water Diversion on Water in Drainage Channels, Groundwater, and Lake Ulansuhai in China

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