EDAFOLOGÍA, Vol. 10 (3), pp. 145-152, 2003
RELACIÓN ENTRE LA TENDENCIA AL ENCOSTRAMIENTO SUPERFICIAL Y EL PORCENTAJE DE AGREGADOS ESTABLES EN SUELOS DE LA COMUNIDAD DE MADRID
F. PEREGRINA ALONSO1, T. TEREFE WONDAFRASH1, J. SANTANO ARIAS1, F. SAN JOSE MARTINEZ2, M.A. MARTÍN MARTIN2, R. ESPEJO SERRANO1
1: Dpto. Edafología; 2: Dpto. Matemática Aplicada. ETSI Agrónomos; Universidad Politécnica de Madrid. Ciudad Universitaria s/n. 28040 Madrid.
The relationship between the tendency to crust development and the content in water stable aggregate(Kemper and Rosenau method)is studied in 35 soil samples from different lithological areas of the Comunidad de Madrid. The two crusting indices used, the FAO – PNUMA index and another one modified from the former, have very low relationship to the percentage of water stable aggregates when we consider all the 35 samples together but some tendencies and differences appear when we group the soils according to their parent materials.
Key words: Crusting index; aggregate stability, lithology; silt; organic matter.