Cartographie De La Salinite Du Sol Au Niveau Du Perimetre Irrigue Zelba De La Region De Mahdia (sahel Tunisien)
Year: 2017
Type: article
Abstract: In the region of Mahdia (Eastern Tunisia) perimeters are irrigated using saline waters coming from groundwater and deep aquifers. Consequences are therefore progressive soils salinization. In this context, this work was conducted in the perimeter of Zelba, of Mahdia region, irrigated by brackish water in order to assess the effects of these waters on soil quality. A study of the salinity spatial variation was carried out. Electrical conductivity maps were plotted using the ArcView GIS 3.2 software. Soil salinity mapping showed a slight spatial variation of the soil salinity in the different soil layers. This salinity increased slightly with soil depth. The increasing gradient of the salinity is due to leaching of salts with depth under irrigation. Mapping also showed that the southern part of the perimeter is the most affected by soil salinity. Indeed, the northern part is closer to the water drilling. Thus, it receives more water which favors the salts leaching with depth. The slight spatial variation of salinity is explained by the flat topography of the perimeter.
Source: Larhyss journal
Authors: Doulira Louati, Rajouene Majdoub, Samira Selmani, N. Achour, N. Hannachi, Habib Abida
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2799113481