Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effec ....Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effectiveness. This model will be validated using new and existing data sources, including both controlled experiments and field data obtained in Australia and overseas. A user friendly version of the model will be developed for farm managers and advisory services as a design tool.Read moreRead less
Land disposal as a final treatment for saline industrial effluent. Sustainable land disposal of industrial effluent with high salt and nutrient (N) content, requires a different approach to the disposal of sewage effluent. To maintain plant growth, salt needs to be leached from the soil without off-site movement of nutrients, particularly N. Using irrigation and tree planting, methods of achieving this will be developed experimentally in conjunction with the Goodman Fielder Beaudesert Gelatin f ....Land disposal as a final treatment for saline industrial effluent. Sustainable land disposal of industrial effluent with high salt and nutrient (N) content, requires a different approach to the disposal of sewage effluent. To maintain plant growth, salt needs to be leached from the soil without off-site movement of nutrients, particularly N. Using irrigation and tree planting, methods of achieving this will be developed experimentally in conjunction with the Goodman Fielder Beaudesert Gelatin factory, based on development of a detailed understanding of the processes involved in the interlinked mass balances of salt, N and water. A sustainable and ecologically balanced disposal system will have application for many industrial plants with similar wastes.Read moreRead less