Ferrallitic and ferruginous tropical soils of West Africa

Particular emphasis is given to the views of the ORSTOM pedologists in the areas of soil genesis, morphology, and classification with respect to major soil groups, Ferrallitic and Ferruginous Tropical soils, sols ferrallitiques et sols ferrugineux tropicaux. A tentative correlation is given for these soils in terms of the "New Soil Taxonomy" of the U.S. National Cooperative Soil Survey (popularly called the 7th Approximation). The geographic distribution of these soils is given and important factors in the genesis of the soils are discussed. Descriptions and analytical data are presented of representative soil profiles of ferrallitic and ferruginous tropical soils.