European impact on Eastern Australian coastal lakes: understanding pre-impact conditions and post-settlement modification. Coastal lakes are vulnerable to European impact, yet little is known about how they have been altered in the last 200 years. For example: Are blue-green algal blooms a natural occurrence in coastal lakes? How long have freshwater lakes been isolated from the ocean? Preliminary results indicate that, at key sites, blue-green algae were more abundant before European settlement ....European impact on Eastern Australian coastal lakes: understanding pre-impact conditions and post-settlement modification. Coastal lakes are vulnerable to European impact, yet little is known about how they have been altered in the last 200 years. For example: Are blue-green algal blooms a natural occurrence in coastal lakes? How long have freshwater lakes been isolated from the ocean? Preliminary results indicate that, at key sites, blue-green algae were more abundant before European settlement and that coastal lakes thought to be permanently fresh have been exposed to the ocean within the past 200 years. By documenting change at representative sites, the project will identify which lake types are most vulnerable to impact. Results from the project will ensure that costly restoration efforts are not misplaced.Read moreRead less
Sustainability of aquifer storage and recovery: the effects of nutrient load and water quality on aquifer clogging. Aquifer storage and recovery, ASR, stores excess water or treated effluent for subsequent beneficial use. Microbial and geochemical reactions can through clogging reduce aquifer permeability, increase pumping cost and may threatened the sustainability of the system. The relationships between injectant composition and biological geochemical clogging are poorly understood. Expanding ....Sustainability of aquifer storage and recovery: the effects of nutrient load and water quality on aquifer clogging. Aquifer storage and recovery, ASR, stores excess water or treated effluent for subsequent beneficial use. Microbial and geochemical reactions can through clogging reduce aquifer permeability, increase pumping cost and may threatened the sustainability of the system. The relationships between injectant composition and biological geochemical clogging are poorly understood. Expanding on prior field and column studies and techniques this project will study geochemical and microbial processes at on well-instrumented ASR trial site in South Australia. The relationship between effluent composition and change in hydraulic conductivity will be quantified, with a view to developping generic, practical decision-support tools and improve predictive model.Read moreRead less
New approaches for protecting stream health in temperate Australia: Devising nutrient and salinity guidelines using diatoms. Salinity and nutrient enrichment are the most significant forms of water quality degradation in Australian lowland rivers. This project will identify the biological effect of the water quality pollution and develop new methods for its assessment. Most importantly, through the identification of water quality "thresholds" which result in reduced biodiversity, better guidelin ....New approaches for protecting stream health in temperate Australia: Devising nutrient and salinity guidelines using diatoms. Salinity and nutrient enrichment are the most significant forms of water quality degradation in Australian lowland rivers. This project will identify the biological effect of the water quality pollution and develop new methods for its assessment. Most importantly, through the identification of water quality "thresholds" which result in reduced biodiversity, better guidelines for maintaining stream health will be developed.Read moreRead less
A new flood design methodology for a variable and changing climate. The extreme temporal and spatial variability of Australia's rainfall affects the quantity and quality of water resources, the productivity of agricultural systems, and aquatic and terrestrial ecosystems. Given the impact of extreme events such as floods and the massive investment in water-related infrastructure, evaluation of these risks is an issue of national economic and environmental significance. Monte Carlo simulation tech ....A new flood design methodology for a variable and changing climate. The extreme temporal and spatial variability of Australia's rainfall affects the quantity and quality of water resources, the productivity of agricultural systems, and aquatic and terrestrial ecosystems. Given the impact of extreme events such as floods and the massive investment in water-related infrastructure, evaluation of these risks is an issue of national economic and environmental significance. Monte Carlo simulation techniques will quantify the risks associated with current and future climate change, and the combined risks that come from multiple sources, such as from coastal tides and storm runoff. This research will provide a new spatial framework for calculating risk as well as tools to evaluate flood risk.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882509
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
High resolution airborne radar for environmental research: soil moisture, vegetation, salinity and terrain mapping. There is a rapidly increasing demand for a range of environmental data. For example, information on soil moisture status is required for efficient and sustainable water use. Moreover, irrigation practices and large scale clearing have led to serious land degradation through increased salinity from rising water tables. Combined soil moisture and salinity measurement will provide im ....High resolution airborne radar for environmental research: soil moisture, vegetation, salinity and terrain mapping. There is a rapidly increasing demand for a range of environmental data. For example, information on soil moisture status is required for efficient and sustainable water use. Moreover, irrigation practices and large scale clearing have led to serious land degradation through increased salinity from rising water tables. Combined soil moisture and salinity measurement will provide important insight to this complex issue. Further, understanding the complex and rich biodiversity of Australian flora and its adaptation to droughts and fire is essential to ensuring Australian ecosystem longevity. Knowledge of flora changes through time as a function of soil moisture content and salinity is key to gaining this understanding.Read moreRead less
Special Research Initiatives - Grant ID: SR0354817
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Groundwater and the Environment: Understanding the role of groundwater in the maintenance of sustainable ecosystems in Australia.
. 97% of freshwater on earth is groundwater. Despite this, it is undervalued, largely unexplored and poorly understood. In Australia, groundwater plays a critical role in our salinity problem and sustains our ecosystems. It will be a critical water supply in the future, especially in times of drought when surface water is scarce. Our nation's groundwater resources ....Groundwater and the Environment: Understanding the role of groundwater in the maintenance of sustainable ecosystems in Australia.
. 97% of freshwater on earth is groundwater. Despite this, it is undervalued, largely unexplored and poorly understood. In Australia, groundwater plays a critical role in our salinity problem and sustains our ecosystems. It will be a critical water supply in the future, especially in times of drought when surface water is scarce. Our nation's groundwater resources require the same unresounding commitment to preservation that we now see in the Murray-Darling basin. This network develops foundations for a desperately needed National Groundwater Centre to provide research to ensure win-win outcomes for this country's water resources and the users that rely on them.
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Multifunctional mixed matrix membranes incorporating aligned carbon nanotubes. The pressure on water supplies in Australia will only increase in coming years meaning that effective and cheap means of recycling water must be found. By developing a carbon nanotube-based water filtration system, we intend to promote the growth of Australia's world-class reputation in water remediation. The technological outcomes from this research will lead to direct economic and environmental benefits for the comm ....Multifunctional mixed matrix membranes incorporating aligned carbon nanotubes. The pressure on water supplies in Australia will only increase in coming years meaning that effective and cheap means of recycling water must be found. By developing a carbon nanotube-based water filtration system, we intend to promote the growth of Australia's world-class reputation in water remediation. The technological outcomes from this research will lead to direct economic and environmental benefits for the community and offer commercial opportunities for industry. Training research scientists of the future forms an integral part of our program as it is crucial to maintain a critical mass in this potentially forthcoming water based economy.
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Bottom-up effects of nutrients on estuarine fish related ecosystems. Over 84% of Australians live within 50 km of the coast, and have large impacts on coastal ecosystems, such as increasing nutrients in estuaries. Nutrients have strong bottom-up effects on fish ecosystems, especially during critical juvenile life history stages. Elevated nutrients can alter fish productivity and sustainability, having ecosystem and social implications. This project will combine experimental evidence with novel a ....Bottom-up effects of nutrients on estuarine fish related ecosystems. Over 84% of Australians live within 50 km of the coast, and have large impacts on coastal ecosystems, such as increasing nutrients in estuaries. Nutrients have strong bottom-up effects on fish ecosystems, especially during critical juvenile life history stages. Elevated nutrients can alter fish productivity and sustainability, having ecosystem and social implications. This project will combine experimental evidence with novel approaches of fatty acid tracers in food-webs and fish otolith (earbone) chemistry, to determine how nutrients affect fish ecosystems, recruitment, and survivorship. This project will provide information needed to create sustainable fisheries, to safeguard Australia's fisheries resources for future generations.Read moreRead less
The history of North Stradbroke Island's wetlands: defining natural climate variability in south-east Queensland and improving ecosystem management. South-east Queensland has among the fastest growing populations in Australia. It has also experienced severe drought lasting more than a decade. These combined pressures have led to the expenditure of more than $9 Billion on water resource development. However, it is not known whether the current drought is part of a natural cycle (or, importantly, ....The history of North Stradbroke Island's wetlands: defining natural climate variability in south-east Queensland and improving ecosystem management. South-east Queensland has among the fastest growing populations in Australia. It has also experienced severe drought lasting more than a decade. These combined pressures have led to the expenditure of more than $9 Billion on water resource development. However, it is not known whether the current drought is part of a natural cycle (or, importantly, if it represents the worst extremes in such a cycle). We will determine whether this is the case and, in doing so, contribute to national and international debates about the role of human-induced vs natural climate change.Read moreRead less
The interplay between natural and human perturbations in structuring marine habitats. Empirical predictions of which could be the changes to natural habitats caused by human perturbations will increase the ability to prevent irreversible losses of biodiversity. This project will enable the planning of sound strategies for the conservation of valuable ecosystems, such as kelp forests, in view of the massive changes that will likely take place as a consequence of increasing exploitation of marine ....The interplay between natural and human perturbations in structuring marine habitats. Empirical predictions of which could be the changes to natural habitats caused by human perturbations will increase the ability to prevent irreversible losses of biodiversity. This project will enable the planning of sound strategies for the conservation of valuable ecosystems, such as kelp forests, in view of the massive changes that will likely take place as a consequence of increasing exploitation of marine resources and of global climatic changes. The scientific knowledge generated by this project is necessary for a sustainable development of coastal areas, which would guarantee the provision of goods and services to Australian future generations.Read moreRead less