Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/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
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ISSN | 1431-2174 |
EISSN | 1435-0157 |
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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