A simple field method for diagnosing surface crusting and predicting runoff production in dry West Africa 14th International congress of soil science = 14è congrès international de la science du sol = 14. Internationaler Bondenkundlicher Kongress /Valentin, Christian /Casenave, Alain EROSION RUISSELLEMENT DEGRADATION DU SOL SIMULATION DE PLUIE SURFACE CROUTE TYPOLOGIE AISS 1990 text https://www.documentation.ird.fr/hor/fdi:31988 fdi:31988 Valentin Christian, Casenave Alain. A simple field method for diagnosing surface crusting and predicting runoff production in dry West Africa. In : . 14th International congress of soil science = 14è congrès international de la science du sol = 14. Internationaler Bondenkundlicher Kongress AISS, 1990, 1, 119-124 International Congress of Soil Science = Congrès International de la Science du Sol = International Bodenkundlicher Kongress, 14., Kyoto (Japon), 1990/08/12-18 EN AFRIQUE DE L'OUEST