Soil classification and land suitability studies in the lower Shabelle region, Somalia

analyse de sol aptitud de tierras aptitude des terres arable soils classification des sols cultivated land erosion geomorfologia geomorphologie geomorphology land suitability land use pedogenese ressource en eau semiarid zones socioeconomic organization soil chemicophysical properties soil classification soil genesis soil testing sol arable somalia tierras cultivables utilisation du sol vegetation water resources zone semi-aride