Etude expérimentale de l'influence d'un conditionneur organique sur la stabilité structurale des sols salés du Cheliff : conséquences sur la battance et l'érosion hydrique
Soil slacking and the sensitivity to degradation of cultivated soils are mainly due to the disaggregation of soil clods and the separation of particles under the action of rainfall and irrigation. The measure of structural stability should enable a rapid assessment of the sensitivity of Chéliff soils to soil slacking and water erosion. The method is suggested by Le Bissonnais, 1988 & 1995, who points out the disaggregation mechanisms that depend on the physico-chemical conditions of the water-soil interaction and on soil properties. Four soil types have been chosen with different salinity and sodicity levels. They all belong to the category of soils very unstable to unstable. The example of application of this method to the study of the effect of a PVA (PolyVinylAlcool) soil conditioner on the structural stability shows clearly its effectiveness in the soil structure preservation.
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The applied treatments make the Chéliff soils stable to very stable.
