Hydrogeological drivers and fate of spring flow in a semi-arid setting. In arid and semi-arid climates, aquatic and terrestrial ecosystems often rely on groundwater springs. Spring hydrology depends on complex relationships between underlying aquifers and surface conditions, leading to high uncertainties in understanding aquifer-spring-wetland hydrology, which is critical for spring ecosystem protection and to inform management of relevant groundwater-affecting activities. This project will appl ....Hydrogeological drivers and fate of spring flow in a semi-arid setting. In arid and semi-arid climates, aquatic and terrestrial ecosystems often rely on groundwater springs. Spring hydrology depends on complex relationships between underlying aquifers and surface conditions, leading to high uncertainties in understanding aquifer-spring-wetland hydrology, which is critical for spring ecosystem protection and to inform management of relevant groundwater-affecting activities. This project will apply novel hydrogeophysical and hydrochemical methods, and computer modelling, to investigate the source aquifer of, and fate of discharge from the Doongmabulla Springs Complex (DSC), located in an area of future development. Project results will inform spring vulnerability to development pressures and climate effects.Read moreRead less
Resolving nitrogen and phosphorus transformations along subterranean estuary - sediment/water interface continuums in carbonate sands. Humans are modifying global nitrogen (N) and phosphorus (P) cycles at an alarming rate. The release of N and P into the environment drives eutrophication, one of the greatest threats to coastal ecosystems worldwide. Globally, there is little effort being made to control increasing N and P emissions. The transport of contaminated groundwater is a major source of N ....Resolving nitrogen and phosphorus transformations along subterranean estuary - sediment/water interface continuums in carbonate sands. Humans are modifying global nitrogen (N) and phosphorus (P) cycles at an alarming rate. The release of N and P into the environment drives eutrophication, one of the greatest threats to coastal ecosystems worldwide. Globally, there is little effort being made to control increasing N and P emissions. The transport of contaminated groundwater is a major source of N and P to the coastal zone and an overlooked driver of eutrophication. Yet, research into the processes that influence N and P transformation in groundwater are scarce, they neglect carbonate sand systems and have ignored the processes in key groundwater transition zones. This project will generate new knowledge that will help us understand the role that groundwater plays in coastal eutrophication.Read moreRead less
Combating the spread of antibiotic resistance in urban water systems. This projects aims to investigate the occurrence, diversity, and transformation of antibiotic resistant genes in the entire urban water cycle. Using the latest metagenomic and analytical tools, this project will enhance our knowledge on fate and transfer mechanisms of antibiotic resistance genes in the urban water cycle. Based on this understanding, an expected outcome of the project is the development of innovative technologi ....Combating the spread of antibiotic resistance in urban water systems. This projects aims to investigate the occurrence, diversity, and transformation of antibiotic resistant genes in the entire urban water cycle. Using the latest metagenomic and analytical tools, this project will enhance our knowledge on fate and transfer mechanisms of antibiotic resistance genes in the urban water cycle. Based on this understanding, an expected outcome of the project is the development of innovative technologies for efficient reduction of antibiotic resistance genes to have future applications for environmental, human health and economic benefits for Australia.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100141
Funder
Australian Research Council
Funding Amount
$420,000.00
Summary
High-resolution ITRAX XRF core scanning facility for global change research. This facility will enable researchers to obtain high-resolution geochemical profiles in the study of environmental change and climate variability. It will provide archive data on the variation of density and chemical element composition along sediment and soil cores, rock cores, wood samples, speleothems and corals. These archives contain important information such as human activity, climate variability, water quality c ....High-resolution ITRAX XRF core scanning facility for global change research. This facility will enable researchers to obtain high-resolution geochemical profiles in the study of environmental change and climate variability. It will provide archive data on the variation of density and chemical element composition along sediment and soil cores, rock cores, wood samples, speleothems and corals. These archives contain important information such as human activity, climate variability, water quality changes, pollution histories, recent geomorphological change, land-use change, introduction of invasive species and the occurrence of bushfires. A better understanding of the occurrence and timing of these major environmental issues is of national and regional importance.Read moreRead less
The effect of catchment revegetation on waterways. The effect of catchment revegetation on waterways. This project will examine the forms, transformations and fate of dissolved organic matter (DOM) in aquatic ecosystems and the link to human health with water treatment. Catchment revegetation is a management tool used to reduce excessive nutrient loads to waterways, which in turn causes poor water quality. However, catchment revegetation also produces DOM. DOM is typically poorly characterised a ....The effect of catchment revegetation on waterways. The effect of catchment revegetation on waterways. This project will examine the forms, transformations and fate of dissolved organic matter (DOM) in aquatic ecosystems and the link to human health with water treatment. Catchment revegetation is a management tool used to reduce excessive nutrient loads to waterways, which in turn causes poor water quality. However, catchment revegetation also produces DOM. DOM is typically poorly characterised and its effect on ecosystem health unclear. DOM also reacts with chlorine in water treatment plants to form disinfection by-products that affect human health. This research is expected to provide important new information to guide future catchment restoration efforts.Read moreRead less
The ecological impact of large carnivore restoration. This project aims to assess the ecological changes that have arisen due to the repatriation of estuarine crocodiles to Australian ecosystems. It is significant because the restoration provides a rare opportunity to empirically test changes in ecosystem processes under varying degrees of large carnivore predation pressure. Expected outcomes include improved understanding of the processes that govern the strength of predator-ecosystem interacti ....The ecological impact of large carnivore restoration. This project aims to assess the ecological changes that have arisen due to the repatriation of estuarine crocodiles to Australian ecosystems. It is significant because the restoration provides a rare opportunity to empirically test changes in ecosystem processes under varying degrees of large carnivore predation pressure. Expected outcomes include improved understanding of the processes that govern the strength of predator-ecosystem interactions and an ability to quantify the biomass, social structure, and behaviours of predators required to influence these processes. Benefits should include improvements in how the ecological role of large carnivores is measured, and when and where carnivore populations should be culled or conserved.Read moreRead less
Identifying critical thresholds to prioritise lake restoration. This project aims to conduct a global assessment of lake water quality and prioritise lakes for restoration. This project expects to generate new understanding of trends in lake condition based on application of geospatial frameworks and models for nutrient loads and in-lake trophic state. This information will help to quantify the magnitude of actions required to restore lakes at landscape scale. The intended outcome is a global at ....Identifying critical thresholds to prioritise lake restoration. This project aims to conduct a global assessment of lake water quality and prioritise lakes for restoration. This project expects to generate new understanding of trends in lake condition based on application of geospatial frameworks and models for nutrient loads and in-lake trophic state. This information will help to quantify the magnitude of actions required to restore lakes at landscape scale. The intended outcome is a global atlas linking catchment hydrology, nutrient loads and lake attributes. Expected outcomes of this project include improved methods to predict effects of land use and climate change on lakes across the globe, and recommendations to water resource managers on investing in the restoration of lakes across the landscape.Read moreRead less
Designing effective fish-friendly waterway culverts: integration of hydrodynamics and swimming performance. Man-made in-stream structures (for example, dams and road crossings) have contributed to major declines in native fish numbers, with more than 6,000 barriers to fish migration occurring in New South Wales alone. Recognising this, Fisheries New South Wales led the development of national guidelines for the design and construction of fish friendly road crossings. Unfortunately, these guideli ....Designing effective fish-friendly waterway culverts: integration of hydrodynamics and swimming performance. Man-made in-stream structures (for example, dams and road crossings) have contributed to major declines in native fish numbers, with more than 6,000 barriers to fish migration occurring in New South Wales alone. Recognising this, Fisheries New South Wales led the development of national guidelines for the design and construction of fish friendly road crossings. Unfortunately, these guidelines have little empirical backing. This project will integrate data on the swimming ability of Australian fish species with culvert hydrodynamic modelling to better understand fish requirements in and around road crossings. These data will strengthen national design guidelines and provide the tools engineers and planners need to balance fish migration with effective water management.Read moreRead less
Forecasting fish resilience to environmental change in northern Australia. This project aims to use a traits-based modelling framework, incorporating variability both within and between species, to forecast the resilience of freshwater fishes in northern Australia to impending environmental change. While northern Australian rivers are among the most pristine and productive on earth, they face profound change due to human activity. Emerging evidence suggests that flexibility in functional traits ....Forecasting fish resilience to environmental change in northern Australia. This project aims to use a traits-based modelling framework, incorporating variability both within and between species, to forecast the resilience of freshwater fishes in northern Australia to impending environmental change. While northern Australian rivers are among the most pristine and productive on earth, they face profound change due to human activity. Emerging evidence suggests that flexibility in functional traits (e.g. life history, physiology, behaviour, diet) may result in resilience to environmental change. This project aims to provide decision-makers with essential information and new tools to underpin future planning and resource management.Read moreRead less
Innovative tools needed for market-based nutrient offsetting . This project will apply innovative approaches to develop a functional equivalency of nutrients from catchment versus point sources. This is fundamental knowledge needed for the successful application of nutrient offsetting. This market-based mechanism involves point source polluters choosing to pay for catchment restoration, which is offset against their nutrient discharge. Currently, despite its potential, there is a lack of confide ....Innovative tools needed for market-based nutrient offsetting . This project will apply innovative approaches to develop a functional equivalency of nutrients from catchment versus point sources. This is fundamental knowledge needed for the successful application of nutrient offsetting. This market-based mechanism involves point source polluters choosing to pay for catchment restoration, which is offset against their nutrient discharge. Currently, despite its potential, there is a lack of confidence in the scientific robustness of nutrient offsetting. The proposed new indicators in nutrient equivalency would provide the foundation needed to ensure that governments and industry can have the confidence to engage in nutrient trading schemes, ultimately ensuring environmental and social benefits.Read moreRead less