干旱区生态环境知识资源中心(Arid): Impact of anthropogenic activities on the enrichment of fluoride and salinity in groundwater in the Yuncheng Basin constrained by Cl/Br ratio, delta O-18, delta H-2, delta C-13 and delta Li-7 isotopes

Arid

DOI	10.1016/j.jhydrol.2019.124211
	Impact of anthropogenic activities on the enrichment of fluoride and salinity in groundwater in the Yuncheng Basin constrained by Cl/Br ratio, delta O-18, delta H-2, delta C-13 and delta Li-7 isotopes
	Li, Chengcheng 1,2; Gao, Xubo 1,2; Liu, Yongsheng 3; Wang, Yanxin 1,2
通讯作者	Gao, Xubo
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	579
英文摘要	Substantial concerns have been raised about the degradation of groundwater quality and their harmful effects due to salinization processes and endemic fluorosis issues in China. Yuncheng Basin is an economically important area situated in semi-arid northern China, which has suffered from severe groundwater contamination and intensive anthropogenic activities (agricultural, industrial and domestic). Twenty water quality parameters were surveyed at 85 groundwater and salt lake water sites during August 2013-September 2015. The combining using of Cl/Br mass ratio, delta H-2, delta O-18, delta C-13, and delta(2) Li isotopes was employed to investigate the potential impact of anthropogenic activities which are supposed to contribute to groundwater salinization and fluoride enrichment in the Yuncheng Basin to a large extent. Results show that shallow groundwater are more vulnerable to contamination from anthropogenic processes of irrigation leaching, wastewater drainage, fertilizer utilization and Salt Lake water intrusion. Vertical irrigation recharge has been an important source of salt and fluoride for the shallow groundwater in the runoff area between Kaolao lowland and the central Basin, revealed by the high salinity (> 4000 mg/L), high Cl/Br ratios (> 2000), moderate high delta Li-7 (19.7 similar to 26.1 parts per thousand), moderate delta C-13 (- 8.1 similar to-10.3 parts per thousand) and constant delta O-18 and delta H-2 values. The contribution of over-utilization of fertilizers on high fluoride shallow saline groundwater is found in the crop land in the west part of the Salt Lake with a moderate high nitrate concentration (> 10 mg/L), moderate Cl/Br ratios (332 similar to 1000) and low delta Li-2 value (13.8 parts per thousand). Shallow groundwater in the northern part of the Salt lake polluted by wastewater, evidenced by boron concentration (> 2000 mu g/L), Na/K (molar ratio > 0.6), delta C-13 (-11 similar to-11.1 parts per thousand), and delta Li-7 (20.4 similar to 22.5 parts per thousand), show highest fluoride concentrations. Due to over-pumping of groundwater, Salt Lake water intrusion mainly occurs in the northern shore of the lake and results in the enrichment of fluoride and salinity in some shallow groundwater with low Cl/Br ratios (around 300), high delta Li-7 value (c.a. 27 parts per thousand), and moderate high delta O-18 (-8.2 similar to- 8.7 parts per thousand) and delta(2) Li (- 62.2 similar to- 66.1 parts per thousand) values. The influence of anthropogenic activities on deep groundwater is reflected in two possible scenarios. Increased extraction of groundwater leads to downward leakage of shallow high fluoride saline groundwater, increasing the pollution risk of deep groundwater within the depression cone in the west of Yuncheng City. The rapidly-developed drilling activities of geothermal water (delta Li-7, 11 similar to 14.3 parts per thousand; delta C-13, -7.9 similar to- 8.4 parts per thousand; [5], 709 similar to 3523 mu g/L; [F], 2.1 similar to 8.2 mg/L) bring about the contamination of fresh groundwater by the underground leaking or discharge of geothermal water. Finally, a conceptual model has been developed to demonstrate the influences of anthropogenic activities on groundwater contamination along a northwest to southeast cross-section.
英文关键词	High-fluoride saline groundwater Anthropogenic activity Cl/Br ratios Li isotopes Environmental stable isotopes Yuncheng Basin
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000500371200091
WOS关键词	ENVIRONMENTAL ISOTOPES ; LITHIUM ISOTOPES ; NATURAL-WATERS ; RIVER ; ORIGIN ; LI ; CLASSIFICATION ; FRACTIONATION ; VARIABILITY ; EFFLUENTS
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311327
作者单位	1.China Univ Geosci, State Key Lab Blogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China; 2.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China; 3.China Univ Geosci, Sch Earth Sci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Li, Chengcheng,Gao, Xubo,Liu, Yongsheng,et al. Impact of anthropogenic activities on the enrichment of fluoride and salinity in groundwater in the Yuncheng Basin constrained by Cl/Br ratio, delta O-18, delta H-2, delta C-13 and delta Li-7 isotopes[J],2019,579.
APA	Li, Chengcheng,Gao, Xubo,Liu, Yongsheng,&Wang, Yanxin.(2019).Impact of anthropogenic activities on the enrichment of fluoride and salinity in groundwater in the Yuncheng Basin constrained by Cl/Br ratio, delta O-18, delta H-2, delta C-13 and delta Li-7 isotopes.JOURNAL OF HYDROLOGY,579.
MLA	Li, Chengcheng,et al."Impact of anthropogenic activities on the enrichment of fluoride and salinity in groundwater in the Yuncheng Basin constrained by Cl/Br ratio, delta O-18, delta H-2, delta C-13 and delta Li-7 isotopes".JOURNAL OF HYDROLOGY 579(2019).