Role of organic matter in soil pH change in agro-ecosystems. Over 50 million hectares of arable lands in Australia are affected by soil acidity. Acidity-affected lands continue to expand due to the ongoing process of acidification under current farming practices. The project will provide new knowledge essential for the improved use and management of organic matter to minimize or reverse soil acidification and increase carbon sequestration in farming systems. The associated reduction of soil aci ....Role of organic matter in soil pH change in agro-ecosystems. Over 50 million hectares of arable lands in Australia are affected by soil acidity. Acidity-affected lands continue to expand due to the ongoing process of acidification under current farming practices. The project will provide new knowledge essential for the improved use and management of organic matter to minimize or reverse soil acidification and increase carbon sequestration in farming systems. The associated reduction of soil acidification will also minimise the negative impact of nutrient and water losses on the environment. Growers will benefit from the project through improved soil fertility and crop production, and sustainable land use. Read moreRead less
Rhizosphere priming regulates soil carbon cycle under high carbon dioxide. Australian farmers will be producing crops under elevated CO2 in the future. However, it is unknown how the increased CO2 level will affect agricultural production and soil health. This project aims to understand the effect of high atmospheric CO2 on carbon and nitrogen cycles in major cropping soils. It will examine how combinations of crop and soil types lead to differences in loss of soil organic carbon. Soil microorga ....Rhizosphere priming regulates soil carbon cycle under high carbon dioxide. Australian farmers will be producing crops under elevated CO2 in the future. However, it is unknown how the increased CO2 level will affect agricultural production and soil health. This project aims to understand the effect of high atmospheric CO2 on carbon and nitrogen cycles in major cropping soils. It will examine how combinations of crop and soil types lead to differences in loss of soil organic carbon. Soil microorganisms that link to carbon and nitrogen cycling in soils will be examined in the long-term field trials. The project intends to provide fundamental information that is essential to evaluate the future impact of climate change on the fertility and productivity of our poor, already infertile soils in semi-arid regions.Read moreRead less
Formation of Nanoporous titanium dioxide (TiO2) by Anodization of Titanium Thin Films. The development of nanoporous titanium dioxide (TiO2), with pore diameter less than 25 nm, represents a significant advance for both R&D and industrial applications. It is an invaluable material for the manufacture of a range of electronic and optical devices. These structures can be employed for the development of efficient thermoelectric coolers, highly sensitive biosensors as well as optical micro-devices w ....Formation of Nanoporous titanium dioxide (TiO2) by Anodization of Titanium Thin Films. The development of nanoporous titanium dioxide (TiO2), with pore diameter less than 25 nm, represents a significant advance for both R&D and industrial applications. It is an invaluable material for the manufacture of a range of electronic and optical devices. These structures can be employed for the development of efficient thermoelectric coolers, highly sensitive biosensors as well as optical micro-devices with high refractive index. In addition, nanoporous TiO2 has numerous applications in the fields of nanotechnology, bioengineering, diagnostics, materials science, and in the building industry. Australia will greatly benefit from the research and development of such a product with its promising market.Read moreRead less
Linking soil acidification with carbon dynamics in Australian agroecosystems. The ability to mitigate climate change by sequestering soil carbon may be limited in acidic soils, which are prevalent in Australia. The project will investigate the link between carbon cycling, soil acidification and liming, and provide important knowledge to identify agricultural practices which have the capacity to build soil carbon.
Predatory protists: natural weapons for soil-borne pathogen control. This project aims to understand the mechanistic interactions of predatory protists and fungal pathogens and develop innovative biotechnologies using the protists to suppress soil-borne pathogens. By directly preying on fungal pathogens or activating plant-beneficial bacteria to combat them, the soil predatory protists will be identified, cultivated and utilised to improve disease management. Expected outcomes of this project wi ....Predatory protists: natural weapons for soil-borne pathogen control. This project aims to understand the mechanistic interactions of predatory protists and fungal pathogens and develop innovative biotechnologies using the protists to suppress soil-borne pathogens. By directly preying on fungal pathogens or activating plant-beneficial bacteria to combat them, the soil predatory protists will be identified, cultivated and utilised to improve disease management. Expected outcomes of this project will include a mechanistic understanding of the contribution of protists to pathogen suppression and an innovative, protist-based disease management tool. The novel technologies developed in this project have potentials to benefit Australian agriculture and land management.Read moreRead less
Unraveling the spread of antibiotic resistance genes across soil food webs. The emerging spread of antibiotic resistance genes (ARGs) in the environment is a major threat to public health and food security. This project aims to develop new knowledge about the key transmission routes of ARGs across multiple trophic levels in soil food webs, and how the interactions of plant, soil and fauna contribute to the profiles of environmental ARGs. Expected outcomes include an improved understanding of the ....Unraveling the spread of antibiotic resistance genes across soil food webs. The emerging spread of antibiotic resistance genes (ARGs) in the environment is a major threat to public health and food security. This project aims to develop new knowledge about the key transmission routes of ARGs across multiple trophic levels in soil food webs, and how the interactions of plant, soil and fauna contribute to the profiles of environmental ARGs. Expected outcomes include an improved understanding of the role of fauna in regulating ARGs in the soil environment and the spreading mechanisms of antibiotic resistance in soil food webs. This project will contribute to the development of evidence-based interventions to tackle environmental antibiotic resistance, which has benefits for the environment and public health.
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AI in agriculture: hybrid machine learning models for nitrogen simulation. Agricultural simulation models are used to guide nitrogen management to reduce nitrogen loss and its environmental impact, but they were developed using constrained datasets, which restricts them to site- or regional-specific simulations. This project adopts a novel approach to addressing these problems by applying machine learning-based data analytics. The project will refine the linkages between nitrogen losses and thei ....AI in agriculture: hybrid machine learning models for nitrogen simulation. Agricultural simulation models are used to guide nitrogen management to reduce nitrogen loss and its environmental impact, but they were developed using constrained datasets, which restricts them to site- or regional-specific simulations. This project adopts a novel approach to addressing these problems by applying machine learning-based data analytics. The project will refine the linkages between nitrogen losses and their key drivers, and improve the existing agroecosystem models through data imputation, parameter optimisation and module enhancement. The outcomes of this project will lead to an accurate prediction of nitrogen losses from agriculture, advancement in agroecosystem models and their adaptability to a global context.Read moreRead less
Unravelling soil carbon response to warming in fire-affected ecosystems. This project aims to reveal the continental pattern of soil carbon (C) response to warming in fire-affected ecosystems across Australia and to unravel the biogeochemical mechanisms underlying fire’s role in shaping the temperature sensitivity of soil respiration. Fire has modified over 40% of the Earth’s land surface and wildfire frequency is predicted to increase under global warming. This project expects to generate new k ....Unravelling soil carbon response to warming in fire-affected ecosystems. This project aims to reveal the continental pattern of soil carbon (C) response to warming in fire-affected ecosystems across Australia and to unravel the biogeochemical mechanisms underlying fire’s role in shaping the temperature sensitivity of soil respiration. Fire has modified over 40% of the Earth’s land surface and wildfire frequency is predicted to increase under global warming. This project expects to generate new knowledge on how fire influences soil-to-atmosphere C fluxes in a warmer climate using a multi-disciplinary approach. Expected outcomes include an enhanced capacity to predict the terrestrial ecosystem-to-atmosphere C fluxes and their feedbacks to climate under increasing frequency of fire using Earth-system models. Read moreRead less
Implementing large-scale solid-state quantum computation. The goal of quantum computing research is to harness the properties of quantum mechanics to build computers that are exponentially more powerful than the computers of today. Along the way, many spin-off technologies for conventional computing and nanotechnology are expected. Realising the quantum computing dream is a daunting experimental challenge requiring both theoretical assurance that it is possible in principle, and theoretical guid ....Implementing large-scale solid-state quantum computation. The goal of quantum computing research is to harness the properties of quantum mechanics to build computers that are exponentially more powerful than the computers of today. Along the way, many spin-off technologies for conventional computing and nanotechnology are expected. Realising the quantum computing dream is a daunting experimental challenge requiring both theoretical assurance that it is possible in principle, and theoretical guidance as to the best method. We seek to provide this theoretical support for solid-state systems, and broaden the range of problems that such systems are demonstrably suited to tackle.Read moreRead less
The geomicrobiology and (bio)geochemistry of platinum, palladium and rhodium. Few economic (Platinum) Pt, (Palladium) Pd or (Rhodium) Rh deposits are known in Australia despite an abundance of potential host rock. By improving onshore exploration techniques this project will ensure the supply of these strategic metals to the Australian economy. By integrating geochemical, molecular microbial and microanalyses (e.g., synchrotron) techniques this project will also: (i) enhance Australia's status i ....The geomicrobiology and (bio)geochemistry of platinum, palladium and rhodium. Few economic (Platinum) Pt, (Palladium) Pd or (Rhodium) Rh deposits are known in Australia despite an abundance of potential host rock. By improving onshore exploration techniques this project will ensure the supply of these strategic metals to the Australian economy. By integrating geochemical, molecular microbial and microanalyses (e.g., synchrotron) techniques this project will also: (i) enhance Australia's status in the breakthrough science of Geomicrobiology; (ii) secure a leading role for Australian science in the assessment of anthropogenic Pt, Pd and Rh pollution; (iii) access expertise developed overseas by fostering international collaborations; and (iv) explore the transformational capabilities of microbiota for ore-processing of and nano-particle production.Read moreRead less