Abstract

Data are presented and discussed on the physical and chemical properties of soils under monocultures of teak (Tectona grandis) and eucalypt (Eucalyptus tereticornis, uncoppiced and coppiced), and mixed stands of teak and bombax (Bombax ceiba [B. malabaricum]) . The soil properties studied were bulk density, particle size composition (percentage gravel, sand, silt, clay), pH, organic carbon, exchangeable bases and exchange acidity. Chemical properties differed between plantations, while differences in physical properties were negligible. The relatively low values for pH, organic carbon, exchangeable bases and exchange acidity in monocultural teak and eucalypt (uncoppiced and coppiced) compared with those in mixed teak and bombax plantations will necessitate positive measures in the former plantations to preserve and enhance soil fertility