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Discovery Early Career Researcher Award - Grant ID: DE150101477
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Identifying a new source of natural volatile organohalogens. Natural volatile organohalogens have recently been linked to significant atmospheric ozone depletion. The fundamental reactions controlling their emission and fate are unresolved within the international scientific literature. This project aims to use novel geochemical techniques to determine the role of ultraviolet radiation in organohalogen emissions from degraded saline and acidic landscapes. The expected outcome will shift our unde ....Identifying a new source of natural volatile organohalogens. Natural volatile organohalogens have recently been linked to significant atmospheric ozone depletion. The fundamental reactions controlling their emission and fate are unresolved within the international scientific literature. This project aims to use novel geochemical techniques to determine the role of ultraviolet radiation in organohalogen emissions from degraded saline and acidic landscapes. The expected outcome will shift our understanding of natural volatile organohalogens and predictions of stratospheric ozone recovery. The project also aims to systematically resolve the feedback between elevated ultraviolet radiation and ozone layer depletion, and is therefore highly innovative.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100500
Funder
Australian Research Council
Funding Amount
$321,000.00
Summary
Electron transfer at the microbe-mineral interface via cytochromes/exudates. This project aims to develop the kinetic (both in vivo and in vitro) and thermodynamic models of the extracellular electron transfer processes at the microbe-mineral interface via outer membrane cytochromes and exudates of dissimilatory iron-reducing bacteria, and elucidating the potential electron transfer process from iron-reducing bacteria to semiconducting iron minerals. The observed models will provide a more compr ....Electron transfer at the microbe-mineral interface via cytochromes/exudates. This project aims to develop the kinetic (both in vivo and in vitro) and thermodynamic models of the extracellular electron transfer processes at the microbe-mineral interface via outer membrane cytochromes and exudates of dissimilatory iron-reducing bacteria, and elucidating the potential electron transfer process from iron-reducing bacteria to semiconducting iron minerals. The observed models will provide a more comprehensive understanding of electron transfer reactions at the microbe-mineral interface, which will be helpful in the prediction of natural redox processes of iron transformation and in the development of bioremediation strategies for contaminated sites.Read moreRead less
Unravelling the rhizosphere redox-cycling of iron, sulphur and carbon in re-flooded acidic wetlands. This project will reveal how major re-flooding will influence the cycling of iron, sulphur and carbon in re-flooded acidic, freshwater wetlands. By resolving current biogeochemical uncertainties, this project will generate the necessary knowledge platform to underpin wise long-term management of these sensitive and unique landscapes.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100022
Funder
Australian Research Council
Funding Amount
$580,000.00
Summary
New frontier in Geoscience: A tandem trace element and isotopes facility. The project aims to integrate a multicollector mass spectrometer with the existing laser ablation laboratory at Southern Cross University to establish a unique facility offering tandem trace element and isotopes analysis. This will provide new methodological advancement by expanding the analytical range and obtaining information otherwise inaccessible to stand-alone instruments using traditional standardisation methods. Sp ....New frontier in Geoscience: A tandem trace element and isotopes facility. The project aims to integrate a multicollector mass spectrometer with the existing laser ablation laboratory at Southern Cross University to establish a unique facility offering tandem trace element and isotopes analysis. This will provide new methodological advancement by expanding the analytical range and obtaining information otherwise inaccessible to stand-alone instruments using traditional standardisation methods. Specifically, the integration of an innovative split stream system allows precise matching of elemental concentration with isotopic ratios, crucial for microscale resolution and data accuracy. The new infrastructure will confirm Australia’s leadership role and maintain its competitive advantage in geosciences.Read moreRead less
The role of plant-soil feedback in biodiversity maintenance along fertility gradients: from patterns to mechanisms. Plants strongly modify soils and their associated biota, which in turn has important consequences for plant growth. This is known as 'plant-soil feedback'. This project will determine whether such feedback plays a role in maintaining the exceptionally high levels of plant biodiversity found in the kwongan shrublands of south-western Australia.
Discovery Early Career Researcher Award - Grant ID: DE120100352
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding the origin and maintenance of megadiverse plant communities. South-western Australia hosts some of the most biologically diverse plant communities on Earth, and these occur on the most ancient, nutrient-impoverished soils. By studying coastal dunes of increasing age, this project will determine how megadiverse plant communities originate during long-term ecosystem development, and how they are maintained.
Will soil carbon burial Increase in mangrove wetlands? The aim of this project is to investigate carbon burial in mangroves during current and historical climatic conditions through in depth dating methods and paleoclimate reconstructions. The project intends to use state-of-the-art radionuclide tracer technologies to determine system scale aspects of the mangrove carbon budget, i.e. burial, tidal export and respiration. This project is significant because it aims to delineate how climatic condi ....Will soil carbon burial Increase in mangrove wetlands? The aim of this project is to investigate carbon burial in mangroves during current and historical climatic conditions through in depth dating methods and paleoclimate reconstructions. The project intends to use state-of-the-art radionuclide tracer technologies to determine system scale aspects of the mangrove carbon budget, i.e. burial, tidal export and respiration. This project is significant because it aims to delineate how climatic conditions are directly related to the mangrove carbon budget. Further, the site specific data on historical mangrove carbon burial could allow adaptation strategies for use of coastal wetland habitats that sequester CO2, a natural means to help ameliorate greenhouse gas, as support for mangrove forest protection and restoration.Read moreRead less
Optimal management of coastal ecosystems for blue carbon sequestration. Optimal management of coastal ecosystems for blue carbon sequestration. This project aims to develop decision tools to predict how different management plans could affect the persistence of coastal ecosystems and their capacity to sequester carbon. Coastal ‘blue carbon’ ecosystems (seagrasses, saltmarshes, mangroves) are among Earth’s most efficient carbon sinks, but coastal development and climate change threaten their capa ....Optimal management of coastal ecosystems for blue carbon sequestration. Optimal management of coastal ecosystems for blue carbon sequestration. This project aims to develop decision tools to predict how different management plans could affect the persistence of coastal ecosystems and their capacity to sequester carbon. Coastal ‘blue carbon’ ecosystems (seagrasses, saltmarshes, mangroves) are among Earth’s most efficient carbon sinks, but coastal development and climate change threaten their capacity to sequester carbon. Resource managers urgently need guidance to manage coasts to minimise carbon losses and maximise gains. This project is expected to develop knowledge of how to manage blue carbon ecosystems to achieve maximum carbon sequestration capacity, and to put Australia at the forefront of international efforts to incorporate coastal carbon within carbon dioxide mitigation strategies.Read moreRead less
Sea-level rise as a driver for arsenic mobilisation: unravelling the fundamental hydro-geochemical controls. This project will reveal the effects of rising sea-levels on arsenic mobilisation in vulnerable coastal lowlands. By resolving coupled interactions between tides and geochemistry, this project will provide the necessary knowledge platform to underpin management responses to protect sensitive estuarine and coastal waters.
Climate and environmental history of SE Queensland dunefields. This project aims to generate fundamental information about the timing and mode of formation of sand dunes in the world's largest downdrift sand system, Cooloola and Fraser Island, Queensland. The project aims to provide a world class record of climate variability, sea-level change and long term climate change from the sub-tropics of Australia, an area critical to understanding global climate links and sea-level change but where high ....Climate and environmental history of SE Queensland dunefields. This project aims to generate fundamental information about the timing and mode of formation of sand dunes in the world's largest downdrift sand system, Cooloola and Fraser Island, Queensland. The project aims to provide a world class record of climate variability, sea-level change and long term climate change from the sub-tropics of Australia, an area critical to understanding global climate links and sea-level change but where high quality long-term records are sparse and little investigated. This project will also underpin the outstanding universal value of the Fraser Island World Heritage Area which is based on the area being the world's largest sand island, but for which scientific understanding of the sand dunes is remarkably poor.Read moreRead less