干旱区生态环境知识资源中心(Arid): Source and enrichment mechanism of fluoride in groundwater of the Hotan Oasis within the Tarim Basin, Northwestern China

Arid

DOI	10.1016/j.envpol.2022.118962
	Source and enrichment mechanism of fluoride in groundwater of the Hotan Oasis within the Tarim Basin, Northwestern China
	Huang, Liwen; Sun, Ziyong; Zhou, Aiguo; Bi, Junbo; Liu, Yunde
通讯作者	Liu, YD
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2022
卷号	300
英文摘要	In arid inland irrigated areas, the role of human activities on fluoride enrichment in groundwater is not fully understood. There is an extremely arid climate, high-intensity irrigation, and severe soil salinization in the Hotan Oasis within the Tarim Basin, Northwestern China. In this study, hydrogeochemistry and environmental isotope methods were combined to explore the distribution characteristics and controlling processes of fluoride enrichment in groundwater. The F- concentration in groundwater had a range of 1.12-9.4 mg/L. F- concen trationsof all the groundwater samples were higher than 1.0 mg/L (Chinese Standards for Drinking Water Quality), and about 89% were higher than 1.5 mg/L (WHO Guidelines for Drinking Water Quality). High fluoride groundwater was mainly distributed downstream of the river and in the middle of the interfluvial zone. Vertically, the fluoride concentration was higher when the sampling depth was less than 15 m. There was a significant positive correlation between F- concentration and salinity in groundwater. F- in groundwater was mainly derived from river water fluoride, which could be imported to groundwater with infiltration of rivers and irrigation canals as well as irrigation return flow. Anthropogenic inputs may be partly responsible for fluoride enrichment in groundwater. Fluoride accumulated in the vadose zone by strong evapotranspiration and then leached into groundwater with irrigation return flow was the main mechanism of F- enrichment in groundwater in the study area. This work is a clear example of how human activities together with natural processes can affect the chemical quality of groundwater, which is essential to safeguard the sustainable management of water and soil resources inland arid oasis areas.
英文关键词	Fluoride Groundwater Hydrogeochemistry Environmental isotope Agricultural irrigation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000758455600004
WOS关键词	AREA ; HYDROGEOCHEMISTRY ; CONTAMINATION ; GEOCHEMISTRY ; SALINITY ; AQUIFER ; REGION ; PLAIN ; ISOTOPES ; QUALITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392489
推荐引用方式 GB/T 7714	Huang, Liwen,Sun, Ziyong,Zhou, Aiguo,et al. Source and enrichment mechanism of fluoride in groundwater of the Hotan Oasis within the Tarim Basin, Northwestern China[J],2022,300.
APA	Huang, Liwen,Sun, Ziyong,Zhou, Aiguo,Bi, Junbo,&Liu, Yunde.(2022).Source and enrichment mechanism of fluoride in groundwater of the Hotan Oasis within the Tarim Basin, Northwestern China.ENVIRONMENTAL POLLUTION,300.
MLA	Huang, Liwen,et al."Source and enrichment mechanism of fluoride in groundwater of the Hotan Oasis within the Tarim Basin, Northwestern China".ENVIRONMENTAL POLLUTION 300(2022).