People and Parks: The Real Value of Open Space in Western Sydney. The Western Sydney Parklands (WSP), a corridor of 5500 contiguous hectares, will be the largest urban park in the southern hemisphere - an extraordinary open space resource. This study uses quantitative and qualitative research techniques to gauge 'imageability' and feelings of 'attachment' and 'connectedness' to the Parklands experienced by residents of Western Sydney. We will construct new thematic layers for an existing Geograp ....People and Parks: The Real Value of Open Space in Western Sydney. The Western Sydney Parklands (WSP), a corridor of 5500 contiguous hectares, will be the largest urban park in the southern hemisphere - an extraordinary open space resource. This study uses quantitative and qualitative research techniques to gauge 'imageability' and feelings of 'attachment' and 'connectedness' to the Parklands experienced by residents of Western Sydney. We will construct new thematic layers for an existing Geographic Information Systems database that incorporate subjective values about open space. This expanded understanding of feelings of connectedness will reveal shared community values and enhance future planning and design of urban parklands.Read moreRead less
The impacts of land ownership change on rural social and economic change. This project aims to develop a comprehensive framework for explaining how and why rural land is changing hands, what this means for the ways we understand socio-economic change in rural Australia, and how it can inform best-practice rural and regional decision making by public, private and community sector interests. The project will generate a unique, research-ready database that will detail every land transaction in rura ....The impacts of land ownership change on rural social and economic change. This project aims to develop a comprehensive framework for explaining how and why rural land is changing hands, what this means for the ways we understand socio-economic change in rural Australia, and how it can inform best-practice rural and regional decision making by public, private and community sector interests. The project will generate a unique, research-ready database that will detail every land transaction in rural NSW over a period of ten years, and analyse these data in light of complementary datasets and a series of in-depth interviews with land-owners and key stakeholders. The project expects to transform national understanding of rural land-ownership change, and promote best practice decision making.Read moreRead less
Spatial and temporal monitoring of soil erosion risk with satellite imagery. This project is directed towards Sustainable farm practices, one of the national priorities in the Caring for Our Country program. The satellite image-based monitoring system will provide new information about the changing distribution of erosion risk in seasonal cropping systems, and identify areas where agricultural practices significantly influence this risk. The research will allow landholders, regional, state and n ....Spatial and temporal monitoring of soil erosion risk with satellite imagery. This project is directed towards Sustainable farm practices, one of the national priorities in the Caring for Our Country program. The satellite image-based monitoring system will provide new information about the changing distribution of erosion risk in seasonal cropping systems, and identify areas where agricultural practices significantly influence this risk. The research will allow landholders, regional, state and national authorities to better target effort towards sustainable land management, and improve monitoring and reporting of land condition across broad agricultural regions. Dynamic monitoring of erosion risk will also track landscape conditions and farmer responses to changing climate.Read moreRead less
Reducing export of acid sulfate soil products (particularly iron, aluminium, phosphorus, and organic carbon) as contaminants to coastal waters. Current Australian management of acid sulfate soils (ASS) emphasises the reduction of acidity in floodplain drainage. However this acidity is mainly from the dissolved metals, which can be increased by some management techniques. Dissolved metals can be biotoxic or encourage harmful coastal phytoplankton. Organic metal complexes can increase metal tran ....Reducing export of acid sulfate soil products (particularly iron, aluminium, phosphorus, and organic carbon) as contaminants to coastal waters. Current Australian management of acid sulfate soils (ASS) emphasises the reduction of acidity in floodplain drainage. However this acidity is mainly from the dissolved metals, which can be increased by some management techniques. Dissolved metals can be biotoxic or encourage harmful coastal phytoplankton. Organic metal complexes can increase metal transport but shading of soil and drain surfaces, and constructed wetlands offers a new management tool. Our research aims to reduce transport to coastal waters of these ASS products. A sustainable Australian coast requires that improvement of ASS floodplains must not be at the environmental expense of coastal waters. Read moreRead less
Greenhouse gas emission from sugarcane and mangrove communities in coastal Queensland. Greenhouse gases threaten the global climate. Many estimates of vegetation as sinks and sources for greenhouse gases have a high degree of uncertainty. This project will generate important information about greenhouse gas emissions from Queensland coastal vegetation. Characterised by moist and nutrient rich conditions, sugarcane fields and mangrove ecosystems represent significant sources/sinks of potent green ....Greenhouse gas emission from sugarcane and mangrove communities in coastal Queensland. Greenhouse gases threaten the global climate. Many estimates of vegetation as sinks and sources for greenhouse gases have a high degree of uncertainty. This project will generate important information about greenhouse gas emissions from Queensland coastal vegetation. Characterised by moist and nutrient rich conditions, sugarcane fields and mangrove ecosystems represent significant sources/sinks of potent greenhouse gases nitrous oxide and methane. Sugarcane and mangroves exposed to different nutrient inputs will allow to (i) identify mechanisms of N2O and CH4 emission, (ii) model N2O and CH4 emissions under different nutrient and climate conditions, and (iii) control/reduce emissions by improving coastal ecosystem management.Read moreRead less
Use of Distichlis spicata for sustainable forage production on saline land to manage dryland salinity. Sustainable and productive use of salt-affected lands is a priority for many farmers. This project aims to develop management strategies that optimise yield, water use and nutritive value of Distichlis spicata (a salt-tolerant grass) forage on salinised lands, and to understand how this forage species affects the salt cycle, water use and fertility improvement of saline soils.
Environmental risk assessment of acid sulfate soil formation and pollutant generation in Swan Coastal Plain. The urgency and importance of securing water sources for human use in a sustainable manner is dictated by drying climate and rapid population expansion in Australia. Dropping groundwater levels (less recharge, increased abstraction, enhanced drainage) result in formation of acid sulfate soils in oxidised layers that contain acid-bearing minerals. This project will produce an environmental ....Environmental risk assessment of acid sulfate soil formation and pollutant generation in Swan Coastal Plain. The urgency and importance of securing water sources for human use in a sustainable manner is dictated by drying climate and rapid population expansion in Australia. Dropping groundwater levels (less recharge, increased abstraction, enhanced drainage) result in formation of acid sulfate soils in oxidised layers that contain acid-bearing minerals. This project will produce an environmental risk assessment framework as a basis for (i) educated decisions regarding land development and soil disturbance vs conservation as well as (ii) identifying areas suitable for water abstraction from groundwater resources. This will ensure sustainable use of precious groundwater resources in this drying continent of ours.Read moreRead less
Improving water use efficiency of grapevine production in the Great Western region using effluent water and soil amelioration practices. Irrigation of vineyards with municipal wastewater is a desirable option for the viticulturists of the Great Western region of Victoria, but only if vineyard soil structure is not adversely affected. This project will (1) study the impact of dissolved chemicals in the waste water on the structure of the local sandy soils; (2) model the data to enhance understand ....Improving water use efficiency of grapevine production in the Great Western region using effluent water and soil amelioration practices. Irrigation of vineyards with municipal wastewater is a desirable option for the viticulturists of the Great Western region of Victoria, but only if vineyard soil structure is not adversely affected. This project will (1) study the impact of dissolved chemicals in the waste water on the structure of the local sandy soils; (2) model the data to enhance understanding of the key chemical and physical mechanisms controlling grey water impact in heterogeneous environments. The resulting predictive tools will have direct application in the Great Western region's vineyards, and for irrigation of grey water in vineyards across Ausralia.Read moreRead less
Avoiding Environmental Bankruptcy: the grazing impacts of red kangaroos and sheep. Overgrazing is one of the most serious environmental and economic problems in Australia. By mitigating overgrazing, our project has three major benefits. Firstly, quantification of the foraging requirements for free-ranging sheep and kangaroos will, for the first time, allow us to identify sustainable practices that prevent overgrazing and contribute to significant land recovery. Secondly, a new mechanistic model ....Avoiding Environmental Bankruptcy: the grazing impacts of red kangaroos and sheep. Overgrazing is one of the most serious environmental and economic problems in Australia. By mitigating overgrazing, our project has three major benefits. Firstly, quantification of the foraging requirements for free-ranging sheep and kangaroos will, for the first time, allow us to identify sustainable practices that prevent overgrazing and contribute to significant land recovery. Secondly, a new mechanistic model for predicting herbivore dynamics will allow us to evaluate potential impacts of climate change on future grazing pressures. Thirdly, our results will inform management plans to sustain Australia's arid rangelands as productive, bio-diverse environments, which currently provide economic returns in excess of $20 billion p.a.Read moreRead less
An evolutionary model for interactions of land use and travel behaviour. An evolutionary model for interactions of land use and travel behaviour. This project aims to develop a policy appraisal tool that shows the consequences of land use decisions. The proposed integrated multi-level modelling framework—linked to models that monitor demographics evolution, travel demand, energy, labour, economy, housing and household dynamics—can assess sustainability, equity and economy. This framework is expe ....An evolutionary model for interactions of land use and travel behaviour. An evolutionary model for interactions of land use and travel behaviour. This project aims to develop a policy appraisal tool that shows the consequences of land use decisions. The proposed integrated multi-level modelling framework—linked to models that monitor demographics evolution, travel demand, energy, labour, economy, housing and household dynamics—can assess sustainability, equity and economy. This framework is expected to help people make better decisions about housing, maintain system level properties such as price equilibrium, show the impact of land use in the transport system, and improve policy appraisal for city planning.Read moreRead less