Arid
DOI10.1007/s10040-007-0185-x
Salinization of groundwater in the Nefzawa oases region, Tunisia: results of a regional-scale hydrogeologic approach
Zammouri, Mounira; Siegfried, Tobias; El-Fahem, Tobias; Kriaa, Samiha; Kinzelbach, Wolfgang
通讯作者Zammouri, Mounira
来源期刊HYDROGEOLOGY JOURNAL
ISSN1431-2174
EISSN1435-0157
出版年2007
卷号15期号:7页码:1357-1375
英文摘要

Groundwater pumped from the semi-confined Complexe Terminal (CT) aquifer is an important production factor in irrigated oases agriculture in southern Tunisia. A rise in the groundwater salinity has been observed as a consequence of increasing abstraction from the aquifer during the last few decades. All sources of contamination were investigated using hydrochemical data available from the 1980s. Water samples were taken from drains and observation wells tapping both the CT and the phreatic aquifers and analyzed with regard to chemistry, temperature, isotopes and other environmental tracers. Local salinization mechanisms are suggested, i.e. the upwelling of saline water from the underlying, confined Continental Intercalaire (CI) aquifer, as well as backflow of agricultural drainage water. At this stage, the main salt pan, the Chott el Djerid, is not a contamination source. A finite difference model was also developed to simulate groundwater flow and contaminant transport in the oases. Calibration for the period 1950-2000 was carried out in order to adjust geological and chemical system parameters. The simulation of planned extraction projects predicts a worsening of the present situation. Maintenance of the present abstraction regime will not reduce or stop the salinity increase.


英文关键词arid regions groundwater management hydrochemistry numerical modeling salinization
类型Article
语种英语
国家Tunisia ; Switzerland ; Germany ; Nigeria
收录类别SCI-E
WOS记录号WOS:000251061200011
WOS类目Geosciences, Multidisciplinary ; Water Resources
WOS研究方向Geology ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/154467
作者单位(1)Ecole Super Ingenieurs Equipement, Medjez Bab 9070, Tunisia;(2)Swiss Fed Inst Technol, Inst Environm Engn, CH-8093 Zurich, Switzerland;(3)Univ Bonn, Inst Geol, D-53115 Bonn, Germany;(4)Ecole Natl Ingenieurs Tunis, Lab Modelisat Hydraul & Environm, Tunis 1002, Tunisia;(5)AOC Cellule Operat AMMA, IRD Representat, Benin, Nigeria;(6)Enterprise Tunisienne Activites Petrolieres, Tunis 1002, Tunisia
推荐引用方式
GB/T 7714
Zammouri, Mounira,Siegfried, Tobias,El-Fahem, Tobias,et al. Salinization of groundwater in the Nefzawa oases region, Tunisia: results of a regional-scale hydrogeologic approach[J],2007,15(7):1357-1375.
APA Zammouri, Mounira,Siegfried, Tobias,El-Fahem, Tobias,Kriaa, Samiha,&Kinzelbach, Wolfgang.(2007).Salinization of groundwater in the Nefzawa oases region, Tunisia: results of a regional-scale hydrogeologic approach.HYDROGEOLOGY JOURNAL,15(7),1357-1375.
MLA Zammouri, Mounira,et al."Salinization of groundwater in the Nefzawa oases region, Tunisia: results of a regional-scale hydrogeologic approach".HYDROGEOLOGY JOURNAL 15.7(2007):1357-1375.
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