ISOTOPIC TOOLS FOR GROUNDWATER MANAGEMENT IN SEMI-ARID AREA: CASE OF THE WADI OUAZZI BASIN (MOROCCO)

Journal Title: Larhyss Journal - Year 2015, Vol 23, Issue 23

Abstract

Climate aridity and intensive exploitation due to uncontrolled pumping for irrigation have caused a drastic decrease in the piezometric level aquifers of ouazzi basin plain, and have seriously degraded groundwater quality. Overexploitation of coastal aquifers and pollution vulnerability are among the main problems related to groundwater resources assessment and management in arid and semi-arid regions threatened by desertification being the only source for agricultural and public water supply. The overall objective of this study is to identify the possible human impact on groundwater quality, and the elaboration of a conceptual circulation model of Essaouira coastal aquifer (W Morocco). A study was conducted, having as main goal the characterization of the groundwater evolution from the chemical and isotopic point of view from the recharge areas towards the coast line. Groundwater samples from PlioQuaternary and Turonian aquifers were collected and analysed: i) variable electric conductivity from 900 µs/cm to 3880 µs/cm with similar Cl-Na facies; ii) carbon-14 varies from30 to 60 pMC, with3H levels (Ouazzi Basin) below the detection limit, SW of Essaouira city, tritium content range between 1.5 and 3 TU.

Authors and Affiliations

BAHIR M. | Ecole Normale Supérieure, Cadi Ayyad University, EL MOUKHAYAR R. | GEOLAB, Department of geology, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco, CARREIRA P. | GEOLAB, Department of geology, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco, Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Portugal, SOUHEL A. | Ecole Normale Supérieure, Cadi Ayyad University

Keywords

Related Articles

SIZING AN OPEN CHANNEL WITH HORIZONTAL BOTTOM AND CIRCULAR WALLS USING THE ROUGH MODEL METHOD

The dimensioning of the channels and especially the computation of normal depth plays a significant role in the practice of hydraulic engineer. The classical methods usually used are graphical or iterative to determine...

EXPERIMENTAL ANALYSIS OF THE STATE OF OPERATION OF AT COIL MACHINE FOR IRRIGATION (NORTHWEST OF TUNISIA)

This study concerns the diagnosis of the field operation of winder of irrigation used in the delegation of Bou Salem, governorate of Jendouba (Tunisia) and the assessment of the quality of watering carried out. It incl...

PRODUCTION ET EXPORTATION DES SEDIMENTS EN SUSPENSION LORS DES EVENEMENTS DE CRUE. CAS DU BASSIN VERSANT DE L'OUED MOUILAH

Le processus du transport des matières solides en suspension dans les bassins versants est complexe. Il est étroitement lié à l'intensité des précipitations, à la configuration des bassins versants et aux condit...

RISQUE D’INONDATIONS DANS LE BASSIN VERSANT DE L’OUED HAMIZ (BAIE D’ALGER)

Le bassin versant de l’oued Hamiz, dans sa partie avale enregistre ces dernières années de fréquente inondation avec de forte amplitude. Ce bassin présente des facteurs physiques naturels de prédisposition à êtr...

ETUDE EXPERIMENTALE DU RESSAUT HYDRAULIQUE DANS UN CANAL TRIANGULAIRE A PAROIS RUGUEUSES

Dans cette tude, l’effet de la rugosit absolue des parois d’un canal triangulaire, angle d’ouverture de 90 et pente horizontal, sur les caractristiques du ressaut hydraulique a t examin. Quatre valeurs de la rugo...

Download PDF file
  • EP ID EP15154
  • DOI -
  • Views 374
  • Downloads 15

How To Cite

BAHIR M. , EL MOUKHAYAR R. , CARREIRA P. , SOUHEL A. (2015). ISOTOPIC TOOLS FOR GROUNDWATER MANAGEMENT IN SEMI-ARID AREA: CASE OF THE WADI OUAZZI BASIN (MOROCCO). Larhyss Journal, 23(23), 23-39. https://europub.co.uk/articles/-A-15154