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Contemporary sulfur biomineralisation in acid sulfate soil landscapes. This project aims to generate fundamental knowledge on the processes, kinetics and impacts to water quality of contemporary sulfur biomineralisation in acid sulfate soil landscapes. Extreme concentrations of highly reactive sulfides are forming in the surface sediments of floodplain drains, wetlands and agricultural soils. The newly forming sulfides are linked to severe oxygen depletion and acidification of coastal rivers a ....Contemporary sulfur biomineralisation in acid sulfate soil landscapes. This project aims to generate fundamental knowledge on the processes, kinetics and impacts to water quality of contemporary sulfur biomineralisation in acid sulfate soil landscapes. Extreme concentrations of highly reactive sulfides are forming in the surface sediments of floodplain drains, wetlands and agricultural soils. The newly forming sulfides are linked to severe oxygen depletion and acidification of coastal rivers and the complete failure of floodplain vegetation, leaving soils susceptible to erosion. The proposed study will greatly advance our understanding of how our precious coastal floodplain soil and water resources are being degraded, and will guide better land management.
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Reverting coastal acid sulfate soils to wetlands: Biogeochemical processes and environmental benefits. Reverting acid sulfate soils to wetlands offers an economically viable alternative management opportunity to lock up acidity, metals and nutrients to protect our rivers and estuaries. This study will re-establish a salt water and fresh water wetland in a severely degraded acid sulfate soil area and monitor the biogeochemistry to assess how well wetlands can reduce acid sulfate soil impacts. T ....Reverting coastal acid sulfate soils to wetlands: Biogeochemical processes and environmental benefits. Reverting acid sulfate soils to wetlands offers an economically viable alternative management opportunity to lock up acidity, metals and nutrients to protect our rivers and estuaries. This study will re-establish a salt water and fresh water wetland in a severely degraded acid sulfate soil area and monitor the biogeochemistry to assess how well wetlands can reduce acid sulfate soil impacts. The systematic and detailed investigation being proposed will greatly advance the national and international understanding of how acid sulfate soils can be managed to protect our precious coastal floodplain soils and water resources.Read moreRead less
Special Research Initiatives - Grant ID: SR0354679
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
National Forum and Collaboration on the Investigation and Remediation of Problem Soils through Effective Ground Improvement Practices. The aim of this initiative is to develop a strategy for a high-quality research network on the Australian problematic soils and the appropriate remediation alternatives, including: lime treatment, use of geosynthetics, native vegetation and drainage. Another aim of this initiative is to bring together researchers and practitioners from all over Australia under a ....National Forum and Collaboration on the Investigation and Remediation of Problem Soils through Effective Ground Improvement Practices. The aim of this initiative is to develop a strategy for a high-quality research network on the Australian problematic soils and the appropriate remediation alternatives, including: lime treatment, use of geosynthetics, native vegetation and drainage. Another aim of this initiative is to bring together researchers and practitioners from all over Australia under a common forum in a workshop, to promote exchange of new ideas, disseminate research findings and innovative technologies, as well as to make an impact on practical issues facing the technologists today. An informative website will be created as a result of this initiative. A web-enabled report will also be produced to include peer-reviewed papers and relevant forum discussions.Read moreRead less
Using biodiesel cleanup agents to reduce impacts on mangroves and tidal wetland ecosystems from oil spills. This Linkage project will demonstrate Australia's commitment towards minimisation of the ecological impacts of key pollutants like oil in the marine environment. It will also advance Australia's leadership position in the management of oil spill remediation and will, through the robust partnership developed with Australian Maritime Safety Authority build a skilled team better able to respo ....Using biodiesel cleanup agents to reduce impacts on mangroves and tidal wetland ecosystems from oil spills. This Linkage project will demonstrate Australia's commitment towards minimisation of the ecological impacts of key pollutants like oil in the marine environment. It will also advance Australia's leadership position in the management of oil spill remediation and will, through the robust partnership developed with Australian Maritime Safety Authority build a skilled team better able to respond effectively when such disasters occur. The challenge is to maintain this research focus and create some stability and continuity of the knowledge and experiences gained at the University of Queensland. Significantly the project will provide career-oriented research training opportunities in a field that clearly underpins National Research Priorities. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775760
Funder
Australian Research Council
Funding Amount
$101,967.00
Summary
Satellite remote sensing and GIS data processing facilities at Charles Darwin University, Darwin. Northern Australia is vast, remote and spreads across diverse and extensive landscapes. There is no centralised remote sensing and GIS facility within 2000 kilometres of the CDU, Darwin. The upgraded infrastructure at CDU will assist in strengthening the research base in this remote part of Australia. This will allow the NT researchers to focus on the environmental applications of remote sensing and ....Satellite remote sensing and GIS data processing facilities at Charles Darwin University, Darwin. Northern Australia is vast, remote and spreads across diverse and extensive landscapes. There is no centralised remote sensing and GIS facility within 2000 kilometres of the CDU, Darwin. The upgraded infrastructure at CDU will assist in strengthening the research base in this remote part of Australia. This will allow the NT researchers to focus on the environmental applications of remote sensing and GIS technologies which will have many community benefits through better management of water resources, land degradation, wetlands, cultural knowledge and sustainable use of Australian biodiversity. The infrastructure will also assist in the training of new researchers within this developing field.
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Do artificial structures enhance the spread of exotic marine invertebrates in NSW estuaries? This project will investigate whether artificial structures in estuaries enhance the spread of exotic marine invertebrates and will examine the impacts of exotic species on rocky reef species. The introduction of exotic species is a significant threat to native biodiversity, second only to habitat destruction. These two threats are coincident in urbanised estuaries. This project will also provide infor ....Do artificial structures enhance the spread of exotic marine invertebrates in NSW estuaries? This project will investigate whether artificial structures in estuaries enhance the spread of exotic marine invertebrates and will examine the impacts of exotic species on rocky reef species. The introduction of exotic species is a significant threat to native biodiversity, second only to habitat destruction. These two threats are coincident in urbanised estuaries. This project will also provide information about the possible roles of different types of boating activity in transporting exotic species. Research on the role of artificial structures in invasions has not been done anywhere in the world and is essential if we are to understand, manage and ameliorate the threats of exotic species.Read moreRead less
Unraveling the oxidative geochemistry of nanoparticulate mackinawite in acid sulfate soil landscapes. Acid sulfate soils impact over 8 million ha of valuable coastal land in Australia, and over 24 million ha throughout the world. Drainage from acid sulfate soil waterways is a major threat to water quality, ecosystem health, agricultural sustainability and fisheries productivity. The practical benefits of this project arise from an improved understanding of the processes controlling water qualit ....Unraveling the oxidative geochemistry of nanoparticulate mackinawite in acid sulfate soil landscapes. Acid sulfate soils impact over 8 million ha of valuable coastal land in Australia, and over 24 million ha throughout the world. Drainage from acid sulfate soil waterways is a major threat to water quality, ecosystem health, agricultural sustainability and fisheries productivity. The practical benefits of this project arise from an improved understanding of the processes controlling water quality and associated resources in these areas. The intellectual benefits include the development of novel geochemical concepts involving sulfur minerals that are central to coastal rivers, wetlands and estuaries. This project will enhance Australia's capacity for sustainable environmental management.Read moreRead less
Influence of Marine Protected Areas on ecosystem resilience and ecological processes. Australia is implementing a national representative system of marine protected areas (MPAs). The aims of the MPAs include ensuring ecological viability, maintaining ecological processes, and protecting biodiversity. The ability of MPAs to achieve these aims, however, is based largely on theory rather than empirical evidence. Implementation of MPAs is often controversial as it may cause economic hardship to comm ....Influence of Marine Protected Areas on ecosystem resilience and ecological processes. Australia is implementing a national representative system of marine protected areas (MPAs). The aims of the MPAs include ensuring ecological viability, maintaining ecological processes, and protecting biodiversity. The ability of MPAs to achieve these aims, however, is based largely on theory rather than empirical evidence. Implementation of MPAs is often controversial as it may cause economic hardship to communities dependent on fishing. Our project will benefit environmental managers by determining if and how MPAs influence biodiversity, ecological processes, and ecosystem services and resilience. It will benefit the wider community by providing the rigorous scientific evidence in favour of MPAs that is demanded by stakeholders.Read moreRead less
Schwertmannite in acid sulfate soil landscapes: iron cycling induced acidification. Acid sulfate soils impact over 24 million ha of land throughout the world, 4 million ha of valuable coastal land in Australia alone. Their oxidation and acidification are the cause of catastrophic declines in water quality, aquatic habitat, agricultural productivity and urban infrastructure. The practical benefits of this project arise from an improved understanding of the processes controlling acidification a ....Schwertmannite in acid sulfate soil landscapes: iron cycling induced acidification. Acid sulfate soils impact over 24 million ha of land throughout the world, 4 million ha of valuable coastal land in Australia alone. Their oxidation and acidification are the cause of catastrophic declines in water quality, aquatic habitat, agricultural productivity and urban infrastructure. The practical benefits of this project arise from an improved understanding of the processes controlling acidification and water quality in these areas. Intellectual benefits include the development and application of novel geochemical concepts involving iron minerals relevant to acidity impacted coastal rivers, wetlands and estuaries; this project will enhance Australia's capacity for sustainable environmental management.Read moreRead less
Interactions between denitrification and carbon mineralisation in permeable sediments: A new approach using state of the art instruments and modelling. Excessive nutrient release from manmade sources may lead to algal blooms in aquatic environments. Nitrogen is a nutrient of particular concern in coastal waters because it controls algal growth. Aquatic environments are able to cleanse themselves of excess nitrogen by a process known as denitrification which happens in the sediments. Amazingly ....Interactions between denitrification and carbon mineralisation in permeable sediments: A new approach using state of the art instruments and modelling. Excessive nutrient release from manmade sources may lead to algal blooms in aquatic environments. Nitrogen is a nutrient of particular concern in coastal waters because it controls algal growth. Aquatic environments are able to cleanse themselves of excess nitrogen by a process known as denitrification which happens in the sediments. Amazingly, we have no understanding of how denitrification works in sands despite the fact that most of the coastline is covered in sand. The results from this project will provide critical information needed to predict and reduce algal blooms in coastal waters.Read moreRead less