干旱区生态环境知识资源中心(Arid): Groundwater physico-chemical properties and water quality changes in shallow aquifers in arid saline wetlands, Ouargla, Algeria

Arid

DOI	10.1007/s13201-021-01415-3
	Groundwater physico-chemical properties and water quality changes in shallow aquifers in arid saline wetlands, Ouargla, Algeria
	Medjani, Fethi; Djidel, Mohamed; Labar, Sofiane; Bouchagoura, Louiza; Rezzag Bara, Chouaib
通讯作者	Medjani, F (corresponding author), Univ Kasdi Merbah Ouargla, Geol Sahara Lab, BP 511, Ouargla 30000, Algeria.
来源期刊	APPLIED WATER SCIENCE
ISSN	2190-5487
EISSN	2190-5495
出版年	2021
卷号	11 期号:5
英文摘要	Shallow aquifers are vulnerable to natural geogenic processes as well as anthropogenic influences, and this is especially apparent in desert regions. Within arid and hyperarid climates, evaporation is a controlling hydrologic process leads to an important increase in the concentration of dissolved minerals of both surface water and groundwater. In groundwater, this increase is not only dependent on shallow water table depth, but also on the hydraulic properties of sediments present within the unsaturated zone of the aquifer itself. The main objective of this research is to investigate possible mechanisms that might influence water quality changes under seasonal conditions in shallow aquifers situated within the Saharan desert region of Algeria. In this work, we focus on observed changes in hydrogeochemical characteristics, and the possible responsible processes. Under arid conditions, high water mineralization results in hypersaline water or brine solution formation within shallow aquifers. Due to active physico-chemical mechanisms such as Na+/Ca2+ ion exchange, the successive precipitation of calcite, gypsum, mirabilite or bl oe dite and halite is induced. Biological processes were also observed as prevalent; evidenced by large measured variations in CO2 load concentrations. These processes contributed to an inverse relationship between CO2 and O-2 concentrations within the shallow aquifers studied.
英文关键词	Biogeochemistry Dissolution precipitation Saturation Salt paragenesis Sahara
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000644648500001
WOS关键词	SOILS
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349521
作者单位	[Medjani, Fethi; Djidel, Mohamed; Bouchagoura, Louiza; Rezzag Bara, Chouaib] Univ Kasdi Merbah Ouargla, Geol Sahara Lab, BP 511, Ouargla 30000, Algeria; [Labar, Sofiane] Univ Chadli Bendjedid El Tarf, Fac Nat & Life Sci, REDD Lab, P73, Annaba 36000, Algeria
推荐引用方式 GB/T 7714	Medjani, Fethi,Djidel, Mohamed,Labar, Sofiane,et al. Groundwater physico-chemical properties and water quality changes in shallow aquifers in arid saline wetlands, Ouargla, Algeria[J],2021,11(5).
APA	Medjani, Fethi,Djidel, Mohamed,Labar, Sofiane,Bouchagoura, Louiza,&Rezzag Bara, Chouaib.(2021).Groundwater physico-chemical properties and water quality changes in shallow aquifers in arid saline wetlands, Ouargla, Algeria.APPLIED WATER SCIENCE,11(5).
MLA	Medjani, Fethi,et al."Groundwater physico-chemical properties and water quality changes in shallow aquifers in arid saline wetlands, Ouargla, Algeria".APPLIED WATER SCIENCE 11.5(2021).