干旱区生态环境知识资源中心(Arid): Origin and Salinization Processes of Groundwater in the Semi-Arid Area of Zagora Graben, Southeast Morocco

Arid

DOI	10.3390/w15122172
	Origin and Salinization Processes of Groundwater in the Semi-Arid Area of Zagora Graben, Southeast Morocco
	Ait Lemkademe, Anasse; El Ghorfi, Mustapha; Zouhri, Lahcen; Heddoun, Ouissal; Khalil, Abdessamad; Maacha, Lhou
通讯作者	Zouhri, L
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:12
英文摘要	Located in the southeastern region of Morocco, the Zagora area mainly relies on groundwater as a source of water supply. However, this groundwater is often of concern, due to the limited recharge and unfavorable geological conditions for the development of the aquifer. Despite this, private wells in the Zagora ditch reveal relatively rich water resources. Geochemical and isotopic studies were conducted in the area to understand the origin of the groundwater and its salinity, aiding in informed water management strategies to assist in better planning and regulation of well construction, as well as in mitigating the impacts of high salinity on local water supply and agricultural systems. The results show that the water quality varies, with some wells having conductivity values in excess of 5 mS/cm. Most groundwater samples have high salinity and low pH due to the CO2 dissolved in groundwater. Geochemical analysis indicated two chemical facies: chloride-sulfate calcic/magnesic and bicarbonate calcic/magnesic. The presence of Na+ and Cl- indicated that the origin of these two elements in these waters was the dissolution of halite, with some samples showing an enrichment of Na+ compared to Cl-. This could be attributed to cation exchange. The concentration of Ca2+ and HCO3- suggested that their origin is the dissolution of calcite and the weathering of calcium silicate minerals such as plagioclase. The isotopic analysis showed that the & delta;O-18 values ranged from -10.98 & PTSTHOUSND; to -8.54 & PTSTHOUSND;, and & delta;H-2 values ranged from -75.9 & PTSTHOUSND; to -62.3 & PTSTHOUSND;. This indicated that the groundwater originated from the High Atlas with a recharge altitude between 2600 m and 2800 m. The groundwater flows into the graben through fissures and regional fault networks.
英文关键词	hydrogeochemistry salinity groundwater water rock interactions minerals hydrolysis evaporite dissolution
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:001015873800001
WOS关键词	UNCONFINED AQUIFER ; RESIDENCE TIME ; KERT AQUIFER ; BOU-AREG ; BASIN ; SALINITY ; CLIMATE ; WATER ; EVOLUTION ; MINERALIZATION
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399043
推荐引用方式 GB/T 7714	Ait Lemkademe, Anasse,El Ghorfi, Mustapha,Zouhri, Lahcen,et al. Origin and Salinization Processes of Groundwater in the Semi-Arid Area of Zagora Graben, Southeast Morocco[J],2023,15(12).
APA	Ait Lemkademe, Anasse,El Ghorfi, Mustapha,Zouhri, Lahcen,Heddoun, Ouissal,Khalil, Abdessamad,&Maacha, Lhou.(2023).Origin and Salinization Processes of Groundwater in the Semi-Arid Area of Zagora Graben, Southeast Morocco.WATER,15(12).
MLA	Ait Lemkademe, Anasse,et al."Origin and Salinization Processes of Groundwater in the Semi-Arid Area of Zagora Graben, Southeast Morocco".WATER 15.12(2023).