Ecosystem restoration of bauxite-processing residue sand disposal areas in Western Australia: Important biogeochemical processes and effective fertilisation strategies. Alumina production is one of Australia's most important mining activities. Residue from bauxite-processing must be managed appropriately to minimise detrimental impacts on the surrounding environment. The location of Alcoa's WA Refineries in environmentally- and community- sensitive areas necessitates a detailed understanding of ....Ecosystem restoration of bauxite-processing residue sand disposal areas in Western Australia: Important biogeochemical processes and effective fertilisation strategies. Alumina production is one of Australia's most important mining activities. Residue from bauxite-processing must be managed appropriately to minimise detrimental impacts on the surrounding environment. The location of Alcoa's WA Refineries in environmentally- and community- sensitive areas necessitates a detailed understanding of residue disposal area (RDA) management. Currently little is known about the biogeochemical cycling of nitrogen, phosphorus and carbon in the residue sand despite its importance for sustainable rehabilitation practice. Findings from this project are critical for developing improved fertilisation strategies and protocols for ecosystem restoration of RDAs, which will be applicable both in Australia and overseas. Read moreRead less
Novel strategy for optimising fertilizer input coupled with organic residue management for sustainable reconstruction of jarrah forest ecosystem. This project is aimed at judicious management of the rehabilitation process following surface mining by reducing initial fertilizer input along with using organic residue accumulated following pre-mine clearing of vegetation. This approach has the potential for 'speeding-up' the ecosystem development process by initiating early microbial development in ....Novel strategy for optimising fertilizer input coupled with organic residue management for sustainable reconstruction of jarrah forest ecosystem. This project is aimed at judicious management of the rehabilitation process following surface mining by reducing initial fertilizer input along with using organic residue accumulated following pre-mine clearing of vegetation. This approach has the potential for 'speeding-up' the ecosystem development process by initiating early microbial development in rehabilitation practice and reducing the deleterious effect of heavy fertilization. Apart from these ecological advantages, reducing fertilizer application lowers minesite rehabilitation cost incurred by mining companies. This project will be the first attempt to use organic residue and streamlining the use of mineral fertilizers in mine rehabilitation practice.Read moreRead less
Ecosystem Assembly in Old Fields in the Western Australian Wheatbelt. This project aims to examine the process of ecosystem re-assembly on land which is taken out of agricultural production and left without further management. Land abandonment is common in many parts of the world and could increase dramatically in Australia due to land degradation, salinity and structural change. We will investigate the factors which influence whether native plant species can recolonise abandoned farmland, usin ....Ecosystem Assembly in Old Fields in the Western Australian Wheatbelt. This project aims to examine the process of ecosystem re-assembly on land which is taken out of agricultural production and left without further management. Land abandonment is common in many parts of the world and could increase dramatically in Australia due to land degradation, salinity and structural change. We will investigate the factors which influence whether native plant species can recolonise abandoned farmland, using field and greenhouse studies. We will do this within the context of ecosystem assembly, thereby answering a practical question and also providing input to a conceptual area which is currently of great interest inRead moreRead less
Investigation of the metabolism, molecular targets and environmental fate of the seed germination stimulant, butenolide. The potent germination stimulant, known as butenolide, is expected to provide substantial benefits for improving seed germination and seedling vigour of many plant species used in agriculture, land restoration and rehabilitation. Currently, little is known about the stability, persistence and distribution of the butenolide in natural environments and the mechanism of seed dorm ....Investigation of the metabolism, molecular targets and environmental fate of the seed germination stimulant, butenolide. The potent germination stimulant, known as butenolide, is expected to provide substantial benefits for improving seed germination and seedling vigour of many plant species used in agriculture, land restoration and rehabilitation. Currently, little is known about the stability, persistence and distribution of the butenolide in natural environments and the mechanism of seed dormancy breaking. This study now provides a unique opportunity for Australian research to establish a world-leading position in understanding the processes that regulate seed dormancy, particularly in relation to post-mining land rehabilitation. The research findings will also have wider application in plant conservation, weed control and crop production.Read moreRead less
A molecular ecophysiological assessment of the importance of using local provenance seed in plant biodiversity restoration. The rehabilitation of Australia's unique plant diversity, following disturbance, is an increasingly important activity nationally, involving industry, government and community. The use of local seeds is recognised as best practise, but how local is local? We will use molecular tools to identify the extent of local seed transfer zones, conduct trials to assess the relative ....A molecular ecophysiological assessment of the importance of using local provenance seed in plant biodiversity restoration. The rehabilitation of Australia's unique plant diversity, following disturbance, is an increasingly important activity nationally, involving industry, government and community. The use of local seeds is recognised as best practise, but how local is local? We will use molecular tools to identify the extent of local seed transfer zones, conduct trials to assess the relative performance of local and non-local seeds (is there a home-site advantage?), and assess the consequences of mixing provenances for future generations. We will work closely with industry and community restoration practitioners to improve the effectiveness of restoration, with benefits flowing nationally through general provenance guidelines.Read moreRead less
Setting and achieving realistic restoration goals in human-dominated ecosystems. Federal and state programs and community and NGO activities increasingly focus on ecosystem restoration as a tool in conservation and natural resource management. Clearer understanding of ecosystem dynamics and better articulation of realistic restoration goals can lead to much improved restoration success and better investment of government and private funds. This project will provide a better understanding of ecos ....Setting and achieving realistic restoration goals in human-dominated ecosystems. Federal and state programs and community and NGO activities increasingly focus on ecosystem restoration as a tool in conservation and natural resource management. Clearer understanding of ecosystem dynamics and better articulation of realistic restoration goals can lead to much improved restoration success and better investment of government and private funds. This project will provide a better understanding of ecosystem dynamics both under current conditions and also as influenced by future environmental changes. The contribution to the theoretical and conceptual development of the field of restoration ecology will increase the profile of Australian science and enhance our reputation as leaders in this field. Read moreRead less
Rapid delineation of genetic provenance for rehabilitation and revegetation of native plant communities. The rehabilitation and/or revegetation of degraded, remnant or post-mining bushland is an increasingly important activity. Data and general principles for the delineation of genetic provenance are urgently required for effective rehabilitation, as well as for the conservation of genetic diversity. We will apply a new and powerful genetic technique for the rapid delineation of provenance in ....Rapid delineation of genetic provenance for rehabilitation and revegetation of native plant communities. The rehabilitation and/or revegetation of degraded, remnant or post-mining bushland is an increasingly important activity. Data and general principles for the delineation of genetic provenance are urgently required for effective rehabilitation, as well as for the conservation of genetic diversity. We will apply a new and powerful genetic technique for the rapid delineation of provenance in over 30 native plant species in south west Australia. Our aim is to generate provenance guidelines and principles, as well as provenance data for the most important species for bushland rehabilitation, which will be produced for rehabilitation practitioners through a "provenance atlas" book.Read moreRead less
Development of cryopreservation for high value provenance collections of recalcitrant plant species used in post-mining restoration. This project will develop new and innovative ways to store highly valued native plant germplasm at ultra cold temperatures (-196 °C, in liquid nitrogen) as a means to ensure that elite genotypes used in minesite restoration and critically endangered species are not lost forever to extinction. This project will be the first of its type in Australia utilising a multi ....Development of cryopreservation for high value provenance collections of recalcitrant plant species used in post-mining restoration. This project will develop new and innovative ways to store highly valued native plant germplasm at ultra cold temperatures (-196 °C, in liquid nitrogen) as a means to ensure that elite genotypes used in minesite restoration and critically endangered species are not lost forever to extinction. This project will be the first of its type in Australia utilising a multidisciplinary approach to answer key storage questions and will provide significant national benefits to conservation programs and landcare groups, providing these with additional resources to ensure the long-term survival of native plant germplasm collections. Read moreRead less
Managing evolutionary-ecological process in restoring Banksia woodland resilient to global environmental changes. By manipulating genetic diversity, local selection and gene flow in restored plant communities, this project will establish suitable regimes to manage evolutionary processes in large-scale restoration, thereby improving success and resilience to future changes. It will significantly advance our understanding of evolutionary processes operating in restoration efforts, and lead to impr ....Managing evolutionary-ecological process in restoring Banksia woodland resilient to global environmental changes. By manipulating genetic diversity, local selection and gene flow in restored plant communities, this project will establish suitable regimes to manage evolutionary processes in large-scale restoration, thereby improving success and resilience to future changes. It will significantly advance our understanding of evolutionary processes operating in restoration efforts, and lead to improved restoration success, better long-term ecological functioning in restored ecosystems, better investment of resources, and maintenance of Australia’s biodiversity in the face of rapid environmental change. These findings should be of relevance to broader restoration initiatives managed by the government, community, and industry nationally and internationally.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL0992007
Funder
Australian Research Council
Funding Amount
$3,000,000.00
Summary
Intervention ecology: managing ecosystems in the 21st century. The research will tackle fundamental issues relating to how we manage and restore ecosystems in Australia (and worldwide) in the face of rapid environmental change, an issue recognised as being of increasingly pressing importance. It will provide a better understanding of ecosystem dynamics in the face of future environmental changes, and develop an approach that considers different forms of management intervention, how these might b ....Intervention ecology: managing ecosystems in the 21st century. The research will tackle fundamental issues relating to how we manage and restore ecosystems in Australia (and worldwide) in the face of rapid environmental change, an issue recognised as being of increasingly pressing importance. It will provide a better understanding of ecosystem dynamics in the face of future environmental changes, and develop an approach that considers different forms of management intervention, how these might be triggered and what the ecological and social consequences might be. This will contribute both to the theoretical and conceptual development of ecology, restoration ecology and conservation biology and to policy and management in Australia and elsewhere.Read moreRead less