Study of the groundwater quality in the irrigated plain of Tadla

In the irrigated perimeter of tadla one of the biggest perimeters irrigated in morocco,the intensification of agriculture coupled with the increased use of surface and groundwater resources,is considered to be responsible for the diffuse pollution and the deterioration of some parameters of the groundwater quality and soils. moreover,the overexploitation of groundwater will cause a lowering of piezometric levels leading to the drought of the wells and drilling. consequently it's necessary to take rational measurements to control and safeguard the water resources. in this context,this study was carried out in order to determine the fertilizers use effects on the waters quality of the aquifer of tadla. the obtained results allowed diagnosing the different polluted zones. © 2017,university of mohammed premier oujda morocco.