Consequences of clearing and tillage on the soil of a natural Amazonian ecosystem F. da S. Martins, P. Cerri, C.C. /Volkoff, Boris Andreux, F. /Chauvel, Armand SOL DEFORESTATION CARACTERE MORPHOLOGIQUE CARACTERISTIQUE PHYSIQUE CARACTERISTIQUE CHIMIQUE MATIERE ORGANIQUE EVOLUTION 1991 text https://www.documentation.ird.fr/hor/fdi:38585 fdi:38585 F. da S. Martins P., Cerri C.C., Volkoff Boris, Andreux F., Chauvel Armand. Consequences of clearing and tillage on the soil of a natural Amazonian ecosystem. 1991, 38, 273-282 EN BRESIL ZONE TROPICALE HUMIDE