Root effects on soil organic matter: a double-edged sword. This project aims to understand how plant roots build and destroy soil organic matter in grasslands and what the impacts are of drought. Soil organic matter is the largest terrestrial reservoir of nutrients for plant growth, but paradoxically, formation of new soil organic matter by plant roots also requires external nutrients. This project will address this apparent paradox by using a new root-centric framework and stable isotope techni ....Root effects on soil organic matter: a double-edged sword. This project aims to understand how plant roots build and destroy soil organic matter in grasslands and what the impacts are of drought. Soil organic matter is the largest terrestrial reservoir of nutrients for plant growth, but paradoxically, formation of new soil organic matter by plant roots also requires external nutrients. This project will address this apparent paradox by using a new root-centric framework and stable isotope techniques. The project will use state-of-the art computer models that incorporate the latest frameworks on soil organic matter interacting with plant roots. Benefits include an improved capacity to manage and predict grassland productivity and soil organic matter dynamics with greater resolution and accuracy.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
Unlocking the anchors of soil organic carbon to manage climate change. Soil is the largest reservoir of terrestrial organic carbon. Most of the organic carbon in soils is preserved by association with minerals, however, the composition and stability of mineral-associated organic carbon remain poorly understood. The project will use novel and emerging techniques to discover the composition of organic carbon and stability of organic carbon present in mineral-organic associations in representative ....Unlocking the anchors of soil organic carbon to manage climate change. Soil is the largest reservoir of terrestrial organic carbon. Most of the organic carbon in soils is preserved by association with minerals, however, the composition and stability of mineral-associated organic carbon remain poorly understood. The project will use novel and emerging techniques to discover the composition of organic carbon and stability of organic carbon present in mineral-organic associations in representative Australian soils. Expected outcomes include new knowledge necessary for emerging global carbon cycling models and improve future climate projections. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100756
Funder
Australian Research Council
Funding Amount
$398,945.00
Summary
Closing the data gap: Systematic monitoring of PFAS remediation in soil. Extensive past use of perfluorinated chemicals (PFASs) has resulted in soil and waterway contamination, damaging human and environmental health. The best option for treatment is often soil remediation with sorbents to immobilise PFASs, but the long-term fate of PFASs in treated soil is poorly understood. This project aims to generate new insights into PFASs and sorbent behaviour in soils over time, and re-design analytical ....Closing the data gap: Systematic monitoring of PFAS remediation in soil. Extensive past use of perfluorinated chemicals (PFASs) has resulted in soil and waterway contamination, damaging human and environmental health. The best option for treatment is often soil remediation with sorbents to immobilise PFASs, but the long-term fate of PFASs in treated soil is poorly understood. This project aims to generate new insights into PFASs and sorbent behaviour in soils over time, and re-design analytical methods to better mimic field conditions. Expected outcomes include strategies and methods to allow industry and government agencies to tailor remediation strategies to each site’s environmental and chemical profile, and effectively monitor progress to create longer lasting benefits to human health and the environment. Read moreRead less
Developing a novel carbon negative fertiliser . Food security is vital to support our growing population. However, our increasing reliance on intensive farming systems necessitates increased fertiliser use, leading to increased water pollution and soil degradation - threatening both the Australian environment and food security. Increasing carbon storage capacity by soil and decreasing fertiliser use are two of the primary pathways for restoring the bio-support capacity of soils and reducing farm ....Developing a novel carbon negative fertiliser . Food security is vital to support our growing population. However, our increasing reliance on intensive farming systems necessitates increased fertiliser use, leading to increased water pollution and soil degradation - threatening both the Australian environment and food security. Increasing carbon storage capacity by soil and decreasing fertiliser use are two of the primary pathways for restoring the bio-support capacity of soils and reducing farming footprints. This innovative and first-of-its-kind project aims to develop a cost-effective, carbon negative fertiliser that reduces fertiliser inputs and increases soil carbon storageRead 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.
Plant-mediated arsenic-iron mineral transformations. The project goals are to advance our understanding of molecular-level iron-arsenic transformations induced at plant-mineral-atmosphere interfaces as influenced by remediation actions and future environmental change. The project aims for this to be achieved through an innovative experimental infrastructure combined with isotopic, spectroscopic and advanced synchrotron-based tools. Intended outcomes and benefits are the generation of new knowled ....Plant-mediated arsenic-iron mineral transformations. The project goals are to advance our understanding of molecular-level iron-arsenic transformations induced at plant-mineral-atmosphere interfaces as influenced by remediation actions and future environmental change. The project aims for this to be achieved through an innovative experimental infrastructure combined with isotopic, spectroscopic and advanced synchrotron-based tools. Intended outcomes and benefits are the generation of new knowledge, which will improve current understanding of arsenic and iron fate impacted by remediation actions, plant growth and planetary changes induced via the atmosphere-plant-soil interface.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100820
Funder
Australian Research Council
Funding Amount
$390,000.00
Summary
Nanowire photoelectrodes for carbon dioxide conversion. Returning carbon dioxide (CO2) to a useful state is a significant and challenging problem which requires appropriate devices and energy input. By utilising sunlight as a promising and green energy input, the conversion of CO2 into liquid fuel would positively impact the global carbon balance. This project aims to prepare abundant, non-toxic and sufficiently active photoelectrodes with one dimensional nanostructure, then develop appropriate ....Nanowire photoelectrodes for carbon dioxide conversion. Returning carbon dioxide (CO2) to a useful state is a significant and challenging problem which requires appropriate devices and energy input. By utilising sunlight as a promising and green energy input, the conversion of CO2 into liquid fuel would positively impact the global carbon balance. This project aims to prepare abundant, non-toxic and sufficiently active photoelectrodes with one dimensional nanostructure, then develop appropriate and robust photoelectrochemical devices to convert CO2 into liquid fuels. This project aims to help reduce the atmospheric CO2 concentrations and explore a new energy source.Read moreRead less
Urban biochar: towards prescriptive biochar use for maximum economic productivity and sustainability benefits in urban environments. This project will develop a life cycle assessment of waste management options for green waste and biosolids based on a clear understanding of productivity benefits of urban biochar application to high value production systems.
Synthetic natural gas and biochar from biomass for energy services in remote communities and soil carbon sequestration. Resources, industry and rural communities, the backbone of Australian economy, are confronted by unprecedented challenges of carbon pollution reduction, land conservation and eco-sustainability to combat global climate change. This exciting, highly integrated and multidisciplinary project will develop a scientific basis and technological options for the resources industry and r ....Synthetic natural gas and biochar from biomass for energy services in remote communities and soil carbon sequestration. Resources, industry and rural communities, the backbone of Australian economy, are confronted by unprecedented challenges of carbon pollution reduction, land conservation and eco-sustainability to combat global climate change. This exciting, highly integrated and multidisciplinary project will develop a scientific basis and technological options for the resources industry and remote communities to respond to these challenges. The outcomes of this research will enable the deployment of renewable biomass energy technology, bio-char for carbon storage, and affect the restoration of marginal lands and salinity levels in an environmentally and economically sustainable way, thus contributing to the development of an environmentally sustainable Australia.Read moreRead less