Mineral nutrients in tropical forest and savanna ecosystems.

Tropical forest nutrients, where do we stand? Soil characteristics and classification in relation to the mineral nutrition of tropical wooded ecosystems Pedalogical processes and nutrient supply from parent material in tropical soils Variations in soil nutrients in relation to soil moisture status in a tropical forested ecosystem Nitrification and denitrification in humid tropical ecosystems: potential controls on nitrogen retention The effect of humus acids and soil heating on the availability of phosphate in oxide-rich tropical soils Factors affecting nutrient cycling in tropical soils Mineral nutrients in some Botswana savannah types.