Modelling soil formation in the landscape. Soil is a complex system composed of a set of interconnected physical, chemical and biological factors that function as a whole. Soil system is a key part of natural ecosystems that is significantly affected by land management. This project aims to create a new quantitative model for soil formation in the landscape. This project will investigate whether the soil variability is a result of the soil being a complex system. The outcome of the model will en ....Modelling soil formation in the landscape. Soil is a complex system composed of a set of interconnected physical, chemical and biological factors that function as a whole. Soil system is a key part of natural ecosystems that is significantly affected by land management. This project aims to create a new quantitative model for soil formation in the landscape. This project will investigate whether the soil variability is a result of the soil being a complex system. The outcome of the model will enable us to reconstruct the history of soil profile development in the landscape and help us understand how soil forms and landscape evolves with time.Read moreRead less
The potential of biosolids and flyash mixtures for soil remediation for revegetation of degraded land. Revegetation of land that has been subjected to land clearing or mining is often limited by the poor quality or lack of topsoil. It may prove possible to remediate these areas of land by incorporating a mixture of two waste products, biosolids and flyash. The aim in this project is to determine the usefulness of this method of land remediation by investigating the nutrient levels and fate of co ....The potential of biosolids and flyash mixtures for soil remediation for revegetation of degraded land. Revegetation of land that has been subjected to land clearing or mining is often limited by the poor quality or lack of topsoil. It may prove possible to remediate these areas of land by incorporating a mixture of two waste products, biosolids and flyash. The aim in this project is to determine the usefulness of this method of land remediation by investigating the nutrient levels and fate of contaminants in various mixtures of biosolids and flyash materials, in the absence and presence of soil minerals, and soil ameliorants such as fertilizers and gypsum.Read moreRead less
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