MISE EN EVIDENCE DE L'IMPACT DES CHAGEMENTS CLIMATIQUES SUR LES RESSOURCES EN EAUX SOUTERRAINES A L'ECHELLE DU BASSIN ERSANT: CAS DU BASSIN VERSANT N'FIS (Haouz - Marrakech Maroc).

This paper presents the work undertaken to study impacts of climatic changes on the groundwater recharge at the watershed N'Fis (Haouz Marrakech-Maroc). The data from 13 piezometric stations and 4 meteorological stations spanning from 16 to 37 year periods database with other spatial data (soil occupation, DEM etc.) were integrated in a user-friendly environment through GIS. The objective is to make a preliminary assessment of potential impacts of climate change on groundwater resources .The result shows that the piezometric fluctuations are not influenced by these variations, but they depend mainly on irrigation return. [ABSTRACT FROM AUTHOR]