Spatiotemporal variations in the hydrochemical characteristics and controlling factors of streamflow and groundwater in the Wei River of China

doi:10.1016/j.envpol.2019.113006

	Spatiotemporal variations in the hydrochemical characteristics and controlling factors of streamflow and groundwater in the Wei River of China
	Li, Zhou 1; Xiao, Jun 2; Evaristo, Jaivime 1,3; Li, Zhi 1
刊名	ENVIRONMENTAL POLLUTION
	2019-11-01
卷号	254 页码:10
关键词	Water quality Controlling factors Mass balance method Forward model Stable isotope
ISSN号	0269-7491
DOI	10.1016/j.envpol.2019.113006
通讯作者	Li, Zhi(lizhibox@nwafu.edu.cn)
英文摘要	Analysis of hydrochemical characteristics and controlling factors of streamflow and groundwater in arid regions is important for water security. in this study, we collected samples of streamflow and groundwater from the Wei River in China, analyzed their hydrochemical characteristics, and identified the major solute sources using ion concentrations, delta N-15-NO3- and delta O-18-NO3-. The major downstream ion contents were greater than the corresponding upstream values and the ion content in streamflow during the wet season is much higher than that during the dry season. The water quality during the wet season was unsatisfactory as approximately one third of the water samples were categorized as the worst water quality based on excessive nitrates and carbonate weathering. Rock weathering contributed the greatest proportion of solutes to both streamflow and groundwater. Evaporite dissolution and carbonate weathering dominated solutes in the wet and dry seasons, respectively. Human activities cannot be ignored in certain areas. Fertilizer application accounts for 43% of the total anthropogenic solute inputs. These results point to the increasing impact of agriculture on water quality. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41761144060] ; International Partnership Program of Chinese Academy of Sciences[161461KYSB20170013] ; Natural Science Foundation of Shaanxi Province[2018ZJ4001]
WOS关键词	MAJOR ION CHEMISTRY ; CO2 CONSUMPTION ; SURFACE-WATER ; LOESS PLATEAU ; SEINE RIVER ; BASIN ; CATCHMENT ; RATES ; GEOCHEMISTRY ; CARBONATE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000488887500040
资助机构	National Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences ; Natural Science Foundation of Shaanxi Province
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13277]
专题	地球环境研究所_加速器质谱中心
通讯作者	Li, Zhi
作者单位	1.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 3.Univ Utrecht, Copernicus Inst Sustainable Dev, Utrecht, Netherlands
推荐引用方式 GB/T 7714	Li, Zhou,Xiao, Jun,Evaristo, Jaivime,et al. Spatiotemporal variations in the hydrochemical characteristics and controlling factors of streamflow and groundwater in the Wei River of China[J]. ENVIRONMENTAL POLLUTION,2019,254:10.
APA	Li, Zhou,Xiao, Jun,Evaristo, Jaivime,&Li, Zhi.(2019).Spatiotemporal variations in the hydrochemical characteristics and controlling factors of streamflow and groundwater in the Wei River of China.ENVIRONMENTAL POLLUTION,254,10.
MLA	Li, Zhou,et al."Spatiotemporal variations in the hydrochemical characteristics and controlling factors of streamflow and groundwater in the Wei River of China".ENVIRONMENTAL POLLUTION 254(2019):10.