The nature and ecological functions of soil soluble organic nitrogen in contrasting forest ecosystems. This project employs a series of innovative techniques to investigate the dynamic nature and ecological significance of soil soluble organic nitrogen - one of the important nutrient pools, in contrasting tropical, subtropical and temperate forest ecosystems. The successful conduct of this project will lead to: a) better fertilization recommendation schemes, reduced ecosystem N losses, improved ....The nature and ecological functions of soil soluble organic nitrogen in contrasting forest ecosystems. This project employs a series of innovative techniques to investigate the dynamic nature and ecological significance of soil soluble organic nitrogen - one of the important nutrient pools, in contrasting tropical, subtropical and temperate forest ecosystems. The successful conduct of this project will lead to: a) better fertilization recommendation schemes, reduced ecosystem N losses, improved forest productivity and sustainability, minimised environmental pollution and improved water quality in forested watersheds; b) effective conservation of biodiversity in both managed and natural forests; and c) enhanced international cooperation and reputation of the Australian scientists in the relevant research fields.Read moreRead less
Role of nitrogen-rich compounds for increasing carbon sequestration in soil. This project aims to unravel how increasing concentrations of nitrogen-rich compounds in soils can potentially increase our ability to sequester soil organic carbon. This is significant because long-term agricultural production greatly reduces soil organic carbon stocks and releases carbon dioxide as a greenhouse gas. Expected outcomes of this project include providing information that is urgently needed to develop pred ....Role of nitrogen-rich compounds for increasing carbon sequestration in soil. This project aims to unravel how increasing concentrations of nitrogen-rich compounds in soils can potentially increase our ability to sequester soil organic carbon. This is significant because long-term agricultural production greatly reduces soil organic carbon stocks and releases carbon dioxide as a greenhouse gas. Expected outcomes of this project include providing information that is urgently needed to develop predictive carbon models for effective policy-making and improved management. This project should provide substantial benefits, including fulfilling the carbon sequestration potential of Australia’s soils, thereby delivering positive economic outcomes through increased farm-gate output and mitigation of climate change.Read moreRead less
Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effec ....Evaluating the role of buffer strips in reducing soil erosion and sediment delivery to water bodies. The role of vegetative buffer strips in reducing soil erosion and sediment delivery to water bodies is well established, but the physical processes and their interactions involved are not well understood. These hydraulic, sediment/chemical transport processes will be modelled from physical principles, recognising that the multi-size characteristics of soil plays a vital role in buffer strip effectiveness. This model will be validated using new and existing data sources, including both controlled experiments and field data obtained in Australia and overseas. A user friendly version of the model will be developed for farm managers and advisory services as a design tool.Read moreRead less
Mineral Biosequestration of Organic Carbon in Early Pedogenesis of Tailings. Upcycling tailings into soil (technosols developed from technogenic parent materials) offers a sustainable approach to overcome severe topsoil shortage that limits the progress of ecological rehabilitation of tailings across mine sites. This project aims to establish new knowledge on mineral bioweathering, organic carbon (OC) sequestration in rapidly formed mineral phases, and OC turnover driven by colonising microbes a ....Mineral Biosequestration of Organic Carbon in Early Pedogenesis of Tailings. Upcycling tailings into soil (technosols developed from technogenic parent materials) offers a sustainable approach to overcome severe topsoil shortage that limits the progress of ecological rehabilitation of tailings across mine sites. This project aims to establish new knowledge on mineral bioweathering, organic carbon (OC) sequestration in rapidly formed mineral phases, and OC turnover driven by colonising microbes and plant roots, in the early pedogenesis of tailings initiated by inputs of organic and inorganic materials. This new knowledge is required for developing eco-engineering technology adaptable to a wide range of tailings of diverse mineralogy, to achieve sustainable tailings rehabilitation and organic carbon sequestration.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
Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design bett ....Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design better materials and optimize the performance of organic solar cells and LEDs. Australia's capacity for research and development in this scientifically challenging and technologically important field will be enhanced by this project. Read moreRead less
Interplay of superconductivity and magnetism in layered molecular crystals. The most interesting new electronic materials discovered in the past decade are built from layers of atoms or molecules. Many exhibit a subtle competition between magnetism and superconductivity.
This project will develop new theoretical concepts and models for the electronic properties of organic molecular crystals. The theoretical predictions will be tested experimentally at the USA National High Magnetic Field Labo ....Interplay of superconductivity and magnetism in layered molecular crystals. The most interesting new electronic materials discovered in the past decade are built from layers of atoms or molecules. Many exhibit a subtle competition between magnetism and superconductivity.
This project will develop new theoretical concepts and models for the electronic properties of organic molecular crystals. The theoretical predictions will be tested experimentally at the USA National High Magnetic Field Laboratory.
The outcome will be a better understanding of a wide range of materials (including high-temperature superconductors, giant magnetoresistance and plastic electronic materials) that could be the
basis of much of the electronic technology of the twenty-first century.Read moreRead less
Probing new physics with atomic parity violation. This project aims to provide a new level of rigour in tests of the standard model of particle physics at low energies, and to reveal or more tightly constrain new particles or forces. This will involve the development of state-of-the-art atomic theory techniques and collaboration with world-leading experimental groups. The expected outcomes and benefits include a breakthrough in the precision of atomic theory calculations, new insights into nucle ....Probing new physics with atomic parity violation. This project aims to provide a new level of rigour in tests of the standard model of particle physics at low energies, and to reveal or more tightly constrain new particles or forces. This will involve the development of state-of-the-art atomic theory techniques and collaboration with world-leading experimental groups. The expected outcomes and benefits include a breakthrough in the precision of atomic theory calculations, new insights into nuclear magnetic structure, improved determination of fundamental particle physics parameters, stronger ties with the international experimental community, enhancing Australian leadership and expertise, and high-level training of the next generation of scientists.Read moreRead less
Novel aspects and applications of quantum measurement theory. The first aim is to develop further a novel formalism for quantum measurement theory based on retrodiction (rather than prediction). The second is to apply this theory to non-Markovian systems (in which the measurement is smeared-out in time). The third is to combine quantum measurement theory with natural selection better to understand the appearance of the everyday world. The expected outcomes include a deeper understanding of quant ....Novel aspects and applications of quantum measurement theory. The first aim is to develop further a novel formalism for quantum measurement theory based on retrodiction (rather than prediction). The second is to apply this theory to non-Markovian systems (in which the measurement is smeared-out in time). The third is to combine quantum measurement theory with natural selection better to understand the appearance of the everyday world. The expected outcomes include a deeper understanding of quantum physics and the establishment of new techniques for analysing problems in quantum communication and quantum-limited technologies. These advances are significant both fundamentally and, at the dawn of the quantum information age, in practice.Read moreRead less
Entanglement Processing in N-Atom Systems. An essential part of modern technological society is an understanding the scientific explanation of the world around us, and a realization that these explanations must be critically tested in the light of technological advances. The study of multi-atom entanglement is closely related to questions of fundamental physics. A breakthrough in stimulating this problem could have applications in other areas of physics and in technology, such as information pro ....Entanglement Processing in N-Atom Systems. An essential part of modern technological society is an understanding the scientific explanation of the world around us, and a realization that these explanations must be critically tested in the light of technological advances. The study of multi-atom entanglement is closely related to questions of fundamental physics. A breakthrough in stimulating this problem could have applications in other areas of physics and in technology, such as information processing and cryptography.Read moreRead less