INTRODUCTION Sustainability in the Context of Tropical Catchments SOILS, EROSION AND LAND USE Introduction From Plot to Basins: The Scale Problem in Studies of Soil Erosion and Sediment Yield Remote Sensing and GIS Studies of Erosion Potential for Catchment Management: A Densely Populated Agricultural Catchment in Kenya Socio-economic Aspects of Subsistence Farming and Soil Erosion in Tropical Catchment Management: The Upper Tana, Kenya Agroecological Practices as Tools for the Sustainable Management of Catchments Susceptible to Erosion: Reunion Island The Importance of Geopedology in Sustainable Use of Tropical Catchments: Sodic Soils and Land Use Scenarios in Northern Amazonia Soil Restoration and Conservation: The "Tepetates" - Indurated Volcanic Soils - in Mexico Environmental Management for Sustainable Selective Logging in Tropical Rainforests Environmental Limits to Sustainable Coffee Cultivation on Tropical Soils: The Sungai, Pemadang Catchment, Brunei CATCHMENT CONSERVATION AS AN INTEGRAL PART OF SUSTAINABLE MANAGEMENT Introduction Conservation of Tropical Peat Swamp Forests: A Peatland Catchment in Central Kalimantan Catchment Sustainability and River Biodiversity in Asia: A Case Study from Nepal Conservation of Inland Deltas: A Case Study of the Gash Delta, Sudan The Importance of People in the Management of Tropical Catchments Hydrological and Ecological Considerations in the Management of a Catchment Controlled by a Reservoir Cascade: The Tana River, Kenya Information for the Sustainable Management of Shallow Lakes: Lake Naivasha, Kenya MODELLING: AN ESSENTIAL TOOL FOR SUSTAINABLE MANAGEMENT Introduction The Importance of Soil Infiltration Dynamics and Data Uncertainty: Field Studies on Soils in Zimbabwe Distributed Numerical Modelling of Surface Runoff and Soil Erosion in Arid Catchments Hydrological Modelling in Humid Tropical Catchments Modelling Lake Level Changes: Examples from the Easter Rift Valley, Kenya The Influence of Tropical Catchments upon the Coastal Zone: Modelling the Links between Groundwater and Mangrove Losses in Keyna, India/Bangladesh and Florida.