Establishing an ecological basis for stocking density of Australian bass in freshwaters: Experimental field tests of a general numerical model. Large numbers of the Australian public go fishing, particularly in rivers and impoundments. Angling in these waterways provides a strong source of income for rural and regional communities. The stocking of native fish to support inland angling also sustains much of the aquaculture industry in western NSW and Queensland. This study will develop an optimal ....Establishing an ecological basis for stocking density of Australian bass in freshwaters: Experimental field tests of a general numerical model. Large numbers of the Australian public go fishing, particularly in rivers and impoundments. Angling in these waterways provides a strong source of income for rural and regional communities. The stocking of native fish to support inland angling also sustains much of the aquaculture industry in western NSW and Queensland. This study will develop an optimal approach to stocking Australian bass which is relevant for other stocked freshwater species, and will allow stocking to be undertaken in an environmentally responsible manner. This will both enhance the outcome of investment of public funds in stocking, and enhance the recreational fishing experience that is so important to rural regional communities.Read moreRead less
A novel approach for economic uranium deposit exploration and environmental studies. Outcomes of this project will be: (i) the discovery of new economic uranium ore deposits; (ii) development of a new exploration technology allowing for improved ore deposit targeting. Information gained on the behaviour of radioactive elements at the Earth's surface will be critical for the study of safety issues related to radioactive waste storage and obtaining reliable time constraints on the evolution of the ....A novel approach for economic uranium deposit exploration and environmental studies. Outcomes of this project will be: (i) the discovery of new economic uranium ore deposits; (ii) development of a new exploration technology allowing for improved ore deposit targeting. Information gained on the behaviour of radioactive elements at the Earth's surface will be critical for the study of safety issues related to radioactive waste storage and obtaining reliable time constraints on the evolution of the Australian landscape.Read moreRead less
THE TIME SCALES OF MAGMATIC AND EROSIONAL CYCLES. Precise information on time scales and rates of change is fundamental to understanding natural processes and the development and testing of quantitative physical models in the Earth Sciences. Uranium decay-series isotope studies are revolutionising this field by providing time information in the range 100-100000 years, similar to that of many important Earth processes. This project will establish a dedicated Uranium-series research laboratory and ....THE TIME SCALES OF MAGMATIC AND EROSIONAL CYCLES. Precise information on time scales and rates of change is fundamental to understanding natural processes and the development and testing of quantitative physical models in the Earth Sciences. Uranium decay-series isotope studies are revolutionising this field by providing time information in the range 100-100000 years, similar to that of many important Earth processes. This project will establish a dedicated Uranium-series research laboratory and investigate (1) the processes and time scales of magma formation, transport and differentiation beneath western Pacific island arc volcanoes, (2) the time scales and relative roles of physical and chemical erosion in Australian river basins.Read moreRead less
Plant species economics and strategy-dimensions of plant ecology. Ecological strategies of plant species are differentiated mainly along economic dimensions. Four key dimensions are the leaf lifespan - leaf mass per area tradeoff, the seed mass - seed output tradeoff, the leaf size - twig size spectrum, and canopy height at maturity. Each dimension reflects a spectrum of allocation patterns. Costs, benefits, tradeoffs and correlations underpinning these strategy-dimensions will be investigated w ....Plant species economics and strategy-dimensions of plant ecology. Ecological strategies of plant species are differentiated mainly along economic dimensions. Four key dimensions are the leaf lifespan - leaf mass per area tradeoff, the seed mass - seed output tradeoff, the leaf size - twig size spectrum, and canopy height at maturity. Each dimension reflects a spectrum of allocation patterns. Costs, benefits, tradeoffs and correlations underpinning these strategy-dimensions will be investigated within Australia, and in collaboration with partner investigators overseas.Read moreRead less
Plant ecological strategies across species and an evolutionary-ecology vegetation model. This proposal is aimed at fundamental science about plant traits and water use and flammability. These vegetation processes underpin management of bushfires, water, salinity and carbon storage, which are national priorities for An Environmentally Sustainable Australia. The proposal pursues cost-benefit understanding of stem-leaf relations and of flammability, and aims also to develop an evolutionary-ecology ....Plant ecological strategies across species and an evolutionary-ecology vegetation model. This proposal is aimed at fundamental science about plant traits and water use and flammability. These vegetation processes underpin management of bushfires, water, salinity and carbon storage, which are national priorities for An Environmentally Sustainable Australia. The proposal pursues cost-benefit understanding of stem-leaf relations and of flammability, and aims also to develop an evolutionary-ecology vegetation model (EEVM). An EEVM will encapsulate the next generation of fundamental ecological science, with direct application for global change scenarios and for ecosystem management. This proposal forms a network among outstanding laboratories internationally for the purpose, and gives Australia a lead role.Read moreRead less
A pilot study to demonstrate the use of 15N tracers for determining the flow of nitrogen through lower food webs. This project will have a significant impact on the way wetland wastewater treatment and reuse (WWTR) facilities are constructed in the future. Addressing the key biochemical issues to WWTR systems this study will facilitate improved construction design and management to optimise treatment performance. As National Priority One Area, sustainable water use and the efficiency of WWTR sys ....A pilot study to demonstrate the use of 15N tracers for determining the flow of nitrogen through lower food webs. This project will have a significant impact on the way wetland wastewater treatment and reuse (WWTR) facilities are constructed in the future. Addressing the key biochemical issues to WWTR systems this study will facilitate improved construction design and management to optimise treatment performance. As National Priority One Area, sustainable water use and the efficiency of WWTR systems is fundamental to our economic and social development. The results gleaned from this study will assist in the future design of WWTR systems that will be transferable outside the local study area and as such be of potential benefit both Nationally and internationally.Read moreRead less
Leaf economics, and the acquisition and use of water and nitrogen for photosynthesis. Successful and sustainable management of both natural and human-modified ecosystems flows from advances in our understanding of the fundamentals of plant ecology. Improved understanding of acquisition and use of water and nutrients by plants should lead not only to better management in the present day, but better-founded management decisions under possible future scenarios such as global warming, higher atmosph ....Leaf economics, and the acquisition and use of water and nitrogen for photosynthesis. Successful and sustainable management of both natural and human-modified ecosystems flows from advances in our understanding of the fundamentals of plant ecology. Improved understanding of acquisition and use of water and nutrients by plants should lead not only to better management in the present day, but better-founded management decisions under possible future scenarios such as global warming, higher atmospheric CO2 concentrations or altered rainfall regimes. High-impact publications resulting from this project will sustain Australian leadership in environmental plant biology.Read moreRead less
Integrating Economic Valuation and Water Quality Modelling for Improving Management of Coastal Catchments. This project will apply and integrate water quality models and economic assessment techniques to assist policy makers and catchment managers balance competing development pressures and environmental concerns in coastal catchments. The research is fundamental to underpinning the sustainable management of coastal catchments which provide major economic, environmental and community benefits. T ....Integrating Economic Valuation and Water Quality Modelling for Improving Management of Coastal Catchments. This project will apply and integrate water quality models and economic assessment techniques to assist policy makers and catchment managers balance competing development pressures and environmental concerns in coastal catchments. The research is fundamental to underpinning the sustainable management of coastal catchments which provide major economic, environmental and community benefits. The project will provide robust tools to predict water quality impacts under a range of conditions and it will develop techniques for the economic valuation of market and non-market impacts. The project will demonstrate the integration of water quality and economic modelling and how it can influence policy and investment in conservation and remediation.Read moreRead less
High resolution digital soil mapping. Soil mapping is a key part of land-resource assessment for sustainable environmental management. This project aims to build a methodology to provide a high quality digital soil maps. The output will enable the use of soil data and information to give a clear understanding of the status of, and changes in, the nation's land, vegetation and water resources and implications for their sustainable use.
Digital soil mapping: a contribution to the resolution of the soil information crisis. Soil mapping is a key part of land-resource assessment for sustainable environmental management. Australia and the world have a soil information crisis - the soil is not mapped at sufficient resolution for effective management. This is mainly caused by the large expense of conventional soil survey. This project aims to develop a radical and robust, quantitative and cost-effective methodology for digital soil m ....Digital soil mapping: a contribution to the resolution of the soil information crisis. Soil mapping is a key part of land-resource assessment for sustainable environmental management. Australia and the world have a soil information crisis - the soil is not mapped at sufficient resolution for effective management. This is mainly caused by the large expense of conventional soil survey. This project aims to develop a radical and robust, quantitative and cost-effective methodology for digital soil mapping. We will test and modify the approach in two areas in eastern Australia and transfer the methodology and products to the scientific community, and agencies charged with the responsibility for soil assessment.Read moreRead less