干旱区生态环境知识资源中心(Arid): Hydrochemical characteristics and evolution of groundwater in the dried-up river oasis of the Tarim Basin, Central Asia

Arid

	Hydrochemical characteristics and evolution of groundwater in the dried-up river oasis of the Tarim Basin, Central Asia
	Wang Wanrui; Chen Yaning; Wang Weihua; Xia Zhenhua; Li Xiaoyang; Kayumba Patient M
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2021
卷号	13 期号:10 页码:977-994
英文摘要	Intense human activities in arid areas have great impacts on groundwater hydrochemical cycling by causing groundwater salinization. The spatiotemporal distributions of groundwater hydrochemistry are crucial for studying groundwater salt migration, and also vital to understand hydrological and hydrogeochemical processes of groundwater in arid inland oasis areas. However, due to constraints posed by the paucity of observation data and intense human activities, these processes are not well known in the dried-up river oases of arid areas. Here, we examined spatiotemporal variations and evolution of groundwater hydrochemistry using data from 199 water samples collected in the Wei-Ku Oasis, a typical arid inland oasis in Tarim Basin of Central Asia. As findings, groundwater hydrochemistry showed a spatiotemporal dynamic, while its spatial distribution was complex. TDS and delta~(18)O of river water in the upstream increased from west to east, whereas ion concentrations of shallow groundwater increased from northwest to southeast. Higher TDS was detected in spring for shallow groundwater and in summer for middle groundwater. Pronounced spatiotemporal heterogeneity demonstrated the impacts of geogenic, climatic, and anthropogenic conditions. For that, hydrochemical evolution of phreatic groundwater was primarily controlled by rock dominance and evaporation-crystallization process. Agricultural irrigation and drainage, land cover change, and groundwater extraction reshaped the spatiotemporal patterns of groundwater hydrochemistry. Groundwater overexploitation altered the leaking direction between the aquifers, causing the interaction between saltwater and freshwater and the deterioration of groundwater environment. These findings could provide an insight into groundwater salt migration under human activities, and hence be significant in groundwater quality management in arid inland oasis areas.
英文关键词	spatiotemporal variations groundwater hydrochemistry hydrochemical evolution human activities dried-up river oasis Tarim Basin
类型	Article
语种	英语
收录类别	CSCD
WOS类目	History
CSCD记录号	CSCD:7093020
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377434
作者单位	Wang Wanrui, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;University of Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology;;, Urumqi;;, ;;Beijing 830011;;100000.; Li Xiaoyang, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;University of Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology;;, Urumqi;;, ;;Beijing 830011;;100000.; Kayumba Patient M, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;University of Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology;;, Urumqi;;, ;;Beijing 830011;;100000.; Chen Yaning, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Wang Weihua, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Xia Zhenhua, Xinj...
推荐引用方式 GB/T 7714	Wang Wanrui,Chen Yaning,Wang Weihua,et al. Hydrochemical characteristics and evolution of groundwater in the dried-up river oasis of the Tarim Basin, Central Asia[J],2021,13(10):977-994.
APA	Wang Wanrui,Chen Yaning,Wang Weihua,Xia Zhenhua,Li Xiaoyang,&Kayumba Patient M.(2021).Hydrochemical characteristics and evolution of groundwater in the dried-up river oasis of the Tarim Basin, Central Asia.Journal of Arid Land,13(10),977-994.
MLA	Wang Wanrui,et al."Hydrochemical characteristics and evolution of groundwater in the dried-up river oasis of the Tarim Basin, Central Asia".Journal of Arid Land 13.10(2021):977-994.