干旱区生态环境知识资源中心(Arid): Enrichment mechanism of fluoride in different aquifer systems of the Aksu area located in the Tarim Basin, Northwest China

Arid

DOI	10.1016/j.apgeochem.2023.105606
	Enrichment mechanism of fluoride in different aquifer systems of the Aksu area located in the Tarim Basin, Northwest China
	Zou, Changjian; Liu, Yunde; Pan, Huanying; Lei, Yujuan; Yin, Lihe; Sun, Ziyong
通讯作者	Pan, HY
来源期刊	APPLIED GEOCHEMISTRY
ISSN	0883-2927
EISSN	1872-9134
出版年	2023
卷号	151
英文摘要	In inland arid areas, the fluoride (F-) content of groundwater, which is an important source of drinking water, is often reported to exceed the standard. However, systematic comparative studies on the enrichment mechanism of F-in groundwater from different aquifer systems in the same area are lacking. In the present study, hydro-geochemistry, environmental isotopes, and hydrogeochemical reverse simulations were jointly employed to explore the distribution characteristics and enrichment mechanisms of F-in different aquifer systems of Aksu, Xinjiang. Our results showed that low-fluoride ((F-)<1.5 mg/L) groundwater was mainly distributed in the recharge area, whereas the high-fluoride ((F-)>1.5 mg/L) groundwater was mainly distributed in the runoff and discharge areas. The main enrichment mechanism of F-in the natural area of the Akotai shallow aquifer system may be the dissolution of fluorinated minerals (fluorite and biotite). The main enrichment mechanism of F-in the natural area of the Yi-A shallow aquifer system may be the dissolution of fluorinated minerals (fluorite) with cation exchange as the driving mechanism. The main enrichment mechanism of F-in the natural areas of deep aquifer system may also be the dissolution of fluorinated minerals (fluorite), with cation exchange and calcite precipitation as the driving mechanisms. The exchange between hydroxide (OH-) in groundwater and F-on the mineral surface may also contribute to the enrichment of F-in the natural areas of the Yi-A shallow aquifer system and the deep aquifer system. Recharge from irrigation water reduced the F-content of Akotai shallow groundwater in the irrigated area (Duolang Reservoir-Alar area) but did not reduce the F-content of the Yi-A shallow groundwater in the irrigated area (Wutuan area). The recharge from the deep groundwater originating from the direction of Awat outside the study area reduced the F-content of the deep groundwater in the Duolang Reservoir-Alar area. Evaporation had a weak effect on the enrichment of F-in groundwater. The results of the present study can provide a basis for the rational development of local water resources and would be helpful in understanding the common F-enrichment mechanisms in similar inland arid basins globally.
英文关键词	High-fluoride groundwater Enrichment mechanism Hydrogeochemistry Environmental isotope Reverse simulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000951437600001
WOS关键词	DENGUE VIRUS ; YUNCHENG BASIN ; GROUNDWATER ; WATER ; AUTOPHAGY ; DISTRICT ; HYDROGEOCHEMISTRY ; SUSCEPTIBILITY ; CONTAMINATION ; ASSOCIATION
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395342
推荐引用方式 GB/T 7714	Zou, Changjian,Liu, Yunde,Pan, Huanying,et al. Enrichment mechanism of fluoride in different aquifer systems of the Aksu area located in the Tarim Basin, Northwest China[J],2023,151.
APA	Zou, Changjian,Liu, Yunde,Pan, Huanying,Lei, Yujuan,Yin, Lihe,&Sun, Ziyong.(2023).Enrichment mechanism of fluoride in different aquifer systems of the Aksu area located in the Tarim Basin, Northwest China.APPLIED GEOCHEMISTRY,151.
MLA	Zou, Changjian,et al."Enrichment mechanism of fluoride in different aquifer systems of the Aksu area located in the Tarim Basin, Northwest China".APPLIED GEOCHEMISTRY 151(2023).