Soil colour variables as simple indicators of the duration of soil waterlogging in a West African catena Soil science : confronting new realities in the 21st century : transactions of the 17th world congress of soil science /Blavet, Didier /Leprun, Jean-Claude Mathe, E. /Pansu, Marc SOL COULEUR CLASSIFICATION CONSTITUANT MINERAL ROCHE MERE DU SOL TOPOSEQUENCE CATENA ENGORGEMENT WCSS 2002 text https://www.documentation.ird.fr/hor/fdi:010043242 fdi:010043242 Blavet Didier, Leprun Jean-Claude, Mathe E., Pansu Marc. Soil colour variables as simple indicators of the duration of soil waterlogging in a West African catena. In : . Soil science : confronting new realities in the 21st century : transactions of the 17th world congress of soil science WCSS, 2002, 12 World Congress of Soil Science, 17., Bangkok (THA), 2002/08/14-21 EN AFRIQUE DE L'OUEST