Spatial and temporal study of the salinization quality

of groundwater: case of M’nasra (Morocco)

 

I. Idrissi Alami1*, A. Rhidouani2, M. Zeraouli3, A. Echchelh4, M. Addou1, S. Ben Ahmed5

1 Laboratory for Optoélectronique and Physico Chimie des Matériaux, Kenitra,URAC- 14  

Ibn Tofail University Faculty of Science, BP133, Kenitra, Morocco.

2 Regional Laboratory of the National Office of Drinkable Water Laboratory of the Agro-Pedology of the regional, Kenitra.

3  Office of Agricultural Development. (ROAGD) Kenitra, Morocco  

4 Laboratory for electrical engineering and energy system, Faculty of Science BP133, Ibn Tofail University Kenitra, Morocco

5 Laboratory for synthèse organiques, Faculté de Science de Kenitra BP133, Morocco 

* Corresponding author: E-mail: idrissialami_ibtissam@yahoo.fr

Received: 06 June 2010; revised version accepted: 13 March 2011

 

Abstract

     The M’nasra zone which has an agricultural land area that represents 70% of the total area and its agricultural production reach 12% of the national production is threatened by a salinization of underground waters. We know that this water table is the only ground water source available for this region. Thereby, researches that have been carried out on the field have confirmed the salinization of this water-table due to sea water intrusion and to intensive fertilization (salts) and pesticides. The main problem with a big quantity of sodium and salinity is its effect on soil permeability and on water infiltration. Sodium also directly contributes to water’s total salinity and can be toxic for sensitive crops such as carrots, beans, strawberries etc. In this view, this work aims to study the spatial and temporal evolution of physical and chemical parameters of the wells located in this site. The analyzed and exploited results confirm the variation of the salinization of the water table at a local level and at the spatial level as well.

 

Keywords: Salinity; Sodization; Water; Seawater penetration, Mnasra.


 

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