干旱区生态环境知识资源中心(Arid): Use of isotopes techniques to reveal the origin of water salinity in an arid region of Central-Western Argentina

Arid

DOI	10.1016/j.scitotenv.2020.142935
	Use of isotopes techniques to reveal the origin of water salinity in an arid region of Central-Western Argentina
	Gomez, Laura; Alvarez, Amilcar; D'Ambrosio, Sabina; Zalazar, Gualberto; Aravena, Ramon
通讯作者	Gomez, L (corresponding author), CCT CONICET, Inst Invest Zonas Aridas, Av Ruiz Leal S-N, Mendoza, Argentina.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	763
英文摘要	Groundwater is a strategic and vital resource for agriculture and oil production in the arid region of Carrizal sub basin (CSB) in Argentina.Increasing groundwater salinity in some areas has created legal conflicts between water users over the source of the salinity. A multidisciplinary approach using hydrogeological, chemical and isotope tools were used to evaluate the source of groundwater salinity in CSB. The Mendoza River is the main source of recharge to the CSB aquifer. Groundwater and surface water from the recharge area near the Mendoza River to the discharge area of the CSB were analyzed for the study. The groundwater salinity varies between -1000 mu S/cm in the north (recharge area) to -4000 mu g/cm in the central region. There is a clear correlation between high level of nitrate and the high salinity spots in the aquifer. These data and the stable isotopes data suggests the source of groundwater salinity is associated with irrigation return flows from the agriculture areas. This is fully supported by the carbon isotopes data that showed clearly the input of carbon from the irrigated agriculture areas in the aquifer. No evidence was found about the role of the oil industry in the salinization of groundwater in the study area. However, a groundwater of different origin than the recharge from the Mendoza River was found down-gradient of the oil field which needs further investigation. The results of this study have implications for improving water management in agriculture areas in arid environments where water resources are under significant pressure due to more demand by an increase in population and agriculture activities under a scenario of a cycle of droughts and climate change. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Groundwater Classic aquifer Irrigated oases Hydrogeochemistry Salinization Carrizal Mendoza
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000608188700004
WOS关键词	GROUNDWATER-RECHARGE ; DISSOLVED SULFATE ; AQUIFERS ; MENDOZA ; IMPACT ; NORTH ; O-18
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/2XILL650/348163
作者单位	[Gomez, Laura; D'Ambrosio, Sabina; Zalazar, Gualberto] CCT CONICET, Inst Invest Zonas Aridas, Av Ruiz Leal S-N, Mendoza, Argentina; [Alvarez, Amilcar] Inst Nacl Agua, Ctr Reg Andino, Av Belgrano 210, Mendoza, Argentina; [Aravena, Ramon] Univ Waterloo, Dept Earth & Environm Sci, 200 Univ Av West, Waterloo, ON, Canada
推荐引用方式 GB/T 7714	Gomez, Laura,Alvarez, Amilcar,D'Ambrosio, Sabina,et al. Use of isotopes techniques to reveal the origin of water salinity in an arid region of Central-Western Argentina[J],2021,763.
APA	Gomez, Laura,Alvarez, Amilcar,D'Ambrosio, Sabina,Zalazar, Gualberto,&Aravena, Ramon.(2021).Use of isotopes techniques to reveal the origin of water salinity in an arid region of Central-Western Argentina.SCIENCE OF THE TOTAL ENVIRONMENT,763.
MLA	Gomez, Laura,et al."Use of isotopes techniques to reveal the origin of water salinity in an arid region of Central-Western Argentina".SCIENCE OF THE TOTAL ENVIRONMENT 763(2021).