Contribution to the study of the physicochemical evolution of irrigated soils. Case of the irrigated perimeter downstream of the Mellah and Seybouse River is confluence (Guelma province), North-Eastern Algeria
Paper Details
Contribution to the study of the physicochemical evolution of irrigated soils. Case of the irrigated perimeter downstream of the Mellah and Seybouse River is confluence (Guelma province), North-Eastern Algeria
Abstract
The enrichment of soluble salts process of an irrigated soil causes the build-up of saline soil, which can result an increase in osmotic pressure, toxicity of certain ions to vegetation (Cl–, Na++) and soil degradation. In Algeria, more than 20% of irrigated soils are impacted by salinization/sodification process. In this regard, this work is aimed at investigating the case of (16) parcels located in the Bouchegouf plain, North-East of Algeria, used for market gardening and irrigated from surface water and groundwater. The findings of surface water and groundwater analyses show conductivity and SAR of the order of: (i) (EC=1.138ds/m and SAR= 4.30) for the Seybouse river, (ii) (EC=1.935dS/m and SAR=9.35) for the Mellah river and (iii) (EC= 1.454 dS/m) and SAR=3.23) for groundwater. A calculation model SMSS2 (simulation model of soil salinization and sodification) used for evaluating and preventing the salinization hazard of irrigated soils with these waters reveals:(i) an increased hazard for Mellah river water, (ii) a lesser hazard for Seybouse river water and (iii) the existence of a mixture of Mellah river water with groundwater.
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Amel Maou, Mohamed Mahia, Saadane Djorfi, Kadour Benmarce, Lamine Sayad (2019), Contribution to the study of the physicochemical evolution of irrigated soils. Case of the irrigated perimeter downstream of the Mellah and Seybouse River is confluence (Guelma province), North-Eastern Algeria; JBES, V14, N2, February, P131-137
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