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Assessing soil formation and erosion balances in the Top End with an expanded toolkit. This work is timely as it will provide the tools and the data to assess the sustainability with regard to soil loss of potential agricultural development in the Top End of Australia. With food-growing areas in southern Australia under stress from a prolonged drought, the Federal Government has established a Northern Australia Land and Water Taskforce to explore the potential of the Top End for agricultural and ....Assessing soil formation and erosion balances in the Top End with an expanded toolkit. This work is timely as it will provide the tools and the data to assess the sustainability with regard to soil loss of potential agricultural development in the Top End of Australia. With food-growing areas in southern Australia under stress from a prolonged drought, the Federal Government has established a Northern Australia Land and Water Taskforce to explore the potential of the Top End for agricultural and other development. A key component of its brief is that development must be sustainable. The economic consequences of increased agriculture in the North are likely to be profound, and the findings of this research will be crucial to success.Read moreRead less
Production and transport of soil and sediments, determined by cosmogenic radionuclides and noble gases. Basic questions concerning Australia's soil and regolith resources are addressed through measurement of nuclides produced by cosmic rays in near-surface minerals. Cosmogenic Be-10, Ne-21 and Al-26 are used to (i) quantify the sustainable levels of soil loss, (ii) assess long-term mixing rates, (iii) quantify dispersion and flux of regolith materials from hill-slopes to rivers, and (iv) determi ....Production and transport of soil and sediments, determined by cosmogenic radionuclides and noble gases. Basic questions concerning Australia's soil and regolith resources are addressed through measurement of nuclides produced by cosmic rays in near-surface minerals. Cosmogenic Be-10, Ne-21 and Al-26 are used to (i) quantify the sustainable levels of soil loss, (ii) assess long-term mixing rates, (iii) quantify dispersion and flux of regolith materials from hill-slopes to rivers, and (iv) determine the rates of sediment movement through Australian rivers and floodplains, including sediment-adsorbed pollutants. The research has strong implications for the usage and conservation of soil, sediments and weathered deposits for agriculture, mineral resources, and sedimentary waste disposal.Read moreRead less
Special Research Initiatives - Grant ID: SR0354511
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Soil Acidification, the Environment and Production. Soil acidification affects 50% of Australia's agricultural land and is the most important economic constraint to agricultural. In addition, major external offsite impacts include greenhouse gas emissions, reduced stream and ground water health, reduced biodiversity, increased salinity and waterlogging and infrastructure damage. The aim of this network is to quantify the acidification processes and the connection of these processes to the offsit ....Soil Acidification, the Environment and Production. Soil acidification affects 50% of Australia's agricultural land and is the most important economic constraint to agricultural. In addition, major external offsite impacts include greenhouse gas emissions, reduced stream and ground water health, reduced biodiversity, increased salinity and waterlogging and infrastructure damage. The aim of this network is to quantify the acidification processes and the connection of these processes to the offsite impacts. This will lead to development of strategic plans for acidified and potential acid soils and associate offsite impacts, as well as identifying knowledge gaps and building research and policy synergies. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560895
Funder
Australian Research Council
Funding Amount
$854,354.00
Summary
A new-generation gas-source radiocarbon system for integrated environmental and archaeological research. An ultra-sensitive radiocarbon analysis system, proposed here, is central to new, multi-institution research into past fluctuations of Australia's climate, natural resources and ecosystems. Focussed on the 40,000 years of human presence, the research is an integrated approach to changes of earth systems in the Australian region.The equipment is a single-stage accelerator mass spectrometer (SS ....A new-generation gas-source radiocarbon system for integrated environmental and archaeological research. An ultra-sensitive radiocarbon analysis system, proposed here, is central to new, multi-institution research into past fluctuations of Australia's climate, natural resources and ecosystems. Focussed on the 40,000 years of human presence, the research is an integrated approach to changes of earth systems in the Australian region.The equipment is a single-stage accelerator mass spectrometer (SSAMS) with an innovative gas-fed ion source and automated gas-handling system, with simpler processing and smaller samples than present AMS facilities. Future developments include automated multi-sample handling and coupling to microprobe and chromatographic analysers for microscale radiocarbon analysis of complex substances.Read moreRead less
Economic Analysis of an Environmental Challenge: Salinity, Uncertainty and Property. The applicability of standard property-rights solutions to complex environmental issues such as salinity is examined. Water and carbon trading, as well as issues relating to agricultural land management are addressed. In particular, the use of price instruments as a potentially more attractive mechanism than standard quantity instruments for achieving desirable outcomes is examined. The project will exploit and ....Economic Analysis of an Environmental Challenge: Salinity, Uncertainty and Property. The applicability of standard property-rights solutions to complex environmental issues such as salinity is examined. Water and carbon trading, as well as issues relating to agricultural land management are addressed. In particular, the use of price instruments as a potentially more attractive mechanism than standard quantity instruments for achieving desirable outcomes is examined. The project will exploit and extend recent theoretical developments in modelling under conditions of uncertainty, and the use of price and quantity instruments in regulatory contexts.Read moreRead less
Elucidating the interactions between drought tolerance and photoprotection in plants. The 2002-03 drought cost Australia in the order of $10Billion and 70,000 jobs. Associated with reduced rainfall is increased sunlight irradiance, which exacerbates the reduction in crop yield due to the combined damage of a water deficit and oxidative damage caused by the excess light. Plants have networks of responses to minimise damage due to drought and excess light. We have identified a novel class of genes ....Elucidating the interactions between drought tolerance and photoprotection in plants. The 2002-03 drought cost Australia in the order of $10Billion and 70,000 jobs. Associated with reduced rainfall is increased sunlight irradiance, which exacerbates the reduction in crop yield due to the combined damage of a water deficit and oxidative damage caused by the excess light. Plants have networks of responses to minimise damage due to drought and excess light. We have identified a novel class of genes that optimise or alter different aspects of these networks and we wish to define the nature of that optimisation to determine how it could be transfered to crop plants.Read moreRead less