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Contribution of Hydrochemical and Geoelectrical (ERT and VES) Approaches to Investigate Salinization Process of Phreatic Aquifer and Climate Change Adaptation Strategy in Arid Area: Example of Garaat Douza and Its Proximities (Mediterranean Basin)

  • Elhem Moussaoui
  • Abdelkader MhamdiEmail author
  • Mouez Gouasmia
  • Ferid Dhahri
  • Mohamed Soussi
Chapter
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

The geophysical, hydrogeochemical and climatological investigations of the plio-quaternary aquifer, in Garaat Douza (Moulares-Redayef Mining Basin, Southwestern Tunisia), enabled us to identify the origin and the extension of salinization in time and space. Thus, the hydrogeological study has revealed a piezometric drawdown, showing the insufficiency of the natural recharge of the aquifer due to the low rainfall events and the increasing use of groundwater. The hydrochemical study has shown that the high salinities are recorded at the level of Garaat Douza (outlet of the aquifer). The geophysical study (ERT and VES) has revealed that the surveyed area is characterized by the presence of two zones with different resistivities. The first zone is near the outlet, and generally has very low resistivity values (less than 3 Ω m) revealing the presence of salt-water, whereas in the second zone (far from the outlet), the resistivity values are higher than 100 Ω m, testifying for the presence of water with a better quality than the previous one.

Keywords

Plio-quaternary aquifer Garaat Douza Salinization Hydrogeochemical study Geophysical study 

References

  1. 1.
    Romagny, B., Cudennec, C.: Considérations physiques et sociales pour l’identification des territoires pertinents dans le Sud-Est tunisien. OpenEdition, Développement durable et territoires, (Dossier 6), 23p (2006)Google Scholar
  2. 2.
    Malik, N., Slim, N.: Effects of Urbanization on Groundwater Quality in the Gafsa Town (Southwestern Tunisia) Desalination and Water Treatment. Taylor & Francis Online, 10–12 (2014)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Elhem Moussaoui
    • 1
    • 2
  • Abdelkader Mhamdi
    • 1
    • 2
    Email author
  • Mouez Gouasmia
    • 1
    • 2
  • Ferid Dhahri
    • 1
  • Mohamed Soussi
    • 2
  1. 1.Département des Sciences de la Terre, Faculté des Sciences de GafsaUniversité de GafsaGafsaTunisia
  2. 2.Faculté des Sciences de Tunis, UR11ES15: Environnement sédimentaires, Systèmes pétroliers et caractérisation des réservoirsUniversité de Tunis El ManarTunisTunisia

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