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
- EP ID EP15154
- DOI -
- Views 382
- Downloads 15
ETUDE DE LA MATIERE ORGANIQUE DISSOUTE FLUORESCENTE (MODF) DES LACS DE YAMOUSSOUKRO (CÔTE D’IVOIRE) PAR L’UTILISATION DU PARALLEL FACTORS ANALYSIS (PARAFAC)
This study aims for characterizing dissolved organic matter (DOM) from water samples of a tropical lake system (Yamoussoukro, CI) by excitation-emission fluorescence matrix (EEM) and PARAFAC. Based on 225 samples which...
VARIATIONS SPATIO-TEMPORELLES DES PARAMETRES PHYSICO-CHIMIQUES DES EAUX SOUTERRAINES DE LA COMMUNE RURALE D’ANTANIFOTSY, VAKINANKARATRA, MADAGASCAR
Healthy water distribution is crucial to maintain population health and development in rural area. The underground water (Wells) in CRA was characterized by high seasonal shift. Spatial variation of Nitrite concentrati...
CALCUL DE LA PROFONDEUR NORMALE DANS UNE CONDUITE OVOÃDALE PAR LA METHODE DU MODELE RUGUEUX
Normal depth plays a significant role in the design of open channels and in the analysis of the non-uniform flow as well. Currently, there is no analytical method for calculation of the normal depth in open channels, i...
GESTION DE L'EAU EN INDUSTRIE AGROALIMENTAIRE TUNISIENNE ET SON IMPACT SUR L'ENVIRONNEMENT ET SUR LA SECURITE ALIMENTAIRE
For the food-processing companies, and particularly in developing countries and transition economies such as Tunisia, good water management is becoming more challenging especially with the increase of the water prices...
HISTOIRE DE LA GOUVERNANCE DE L’EAU (PREMIERE PARTIE)
Cette rtrospective de l’itinraire de la gouvernance de l’eau a permis de constater que les plus anciennes civilisations se sont installes et dveloppes dans des rgions extrmement arides mais autour de grands fleuves...