The Sustainable Effluent Irrigation Project - Effects of effluent irrigation on soil sodicity and groundwater quality. The land application of recycled municipal effluent is now regularly practised by a number of local authorities and agencies responsible for centralised collection of wastewater, its treatment and disposal. Treated municipal effluent is often land applied and used to grow hardwood plantations. Hardwood plantations are very effective in producing large amounts of biomass and also ....The Sustainable Effluent Irrigation Project - Effects of effluent irrigation on soil sodicity and groundwater quality. The land application of recycled municipal effluent is now regularly practised by a number of local authorities and agencies responsible for centralised collection of wastewater, its treatment and disposal. Treated municipal effluent is often land applied and used to grow hardwood plantations. Hardwood plantations are very effective in producing large amounts of biomass and also assist agencies in off-setting wastewater treatment and disposal costs associated with advanced wastewater treatment to remove nutrients. This project will examine the effects of effluent irrigation on soil chemistry and groundwater quality at two hardwood plantations in the Hunter Valley, NSW. It is increasingly clear that large-scale reuse schemes, particularly those involving hardwood plantations, must be designed to be sustainable and have no significant impact on soil chemistry (increasing sodicity) and groundwater. This project will develop irrigation regimes for hardwood plantations which will promote soil productivity and optimize effluent application rates for pollutant removal and biomass production.
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Links between carbon and nitrogen cycling processes in forest soils: An innovative approach with both NMR and stable isotope techniques. Understanding the critical links between soil carbon and nitrogen cycling processes in forest ecosystems is necessary for developing effective site management to enhance forest productivity and environmental benefits. In the first application of 14N-nuclear magnetic resonance (NMR) to soil humic acid (HA), we have discovered that surprisingly nitrate-N is prese ....Links between carbon and nitrogen cycling processes in forest soils: An innovative approach with both NMR and stable isotope techniques. Understanding the critical links between soil carbon and nitrogen cycling processes in forest ecosystems is necessary for developing effective site management to enhance forest productivity and environmental benefits. In the first application of 14N-nuclear magnetic resonance (NMR) to soil humic acid (HA), we have discovered that surprisingly nitrate-N is present in soil HAs, with the HA-nitrate N extremely sensitive to forest management practices. This project represents the first attempt to integrate the use of advanced NMR and stable isotope techniques to examine both chemical and biological linkages between carbon and nitrogen cycling processes in Australian and US forest ecosystems.Read moreRead less
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
Forest ecosystem diversity, function and service in response to perturbations: the key regulatory role of biogeochemical cycling. The natural and anthropogenic perturbations such as elevated atmospheric carbon dioxide (CO2), nitrogen(N) deposition, fires and land contamination have transformed much of the land surface on the earth and significantly modified terrestrial biogeochemical cycles in the past century. This project seeks to develop and apply novel nuclear magnetic resonance spectroscopy ....Forest ecosystem diversity, function and service in response to perturbations: the key regulatory role of biogeochemical cycling. The natural and anthropogenic perturbations such as elevated atmospheric carbon dioxide (CO2), nitrogen(N) deposition, fires and land contamination have transformed much of the land surface on the earth and significantly modified terrestrial biogeochemical cycles in the past century. This project seeks to develop and apply novel nuclear magnetic resonance spectroscopy, isotopic and bio-molecular techniques to examine the key role of interactive biogeochemical cycles of carbon and major elements (N, Phosphorous) in regulating forest ecosystem responses to these perturbations. This project will result in improved mitigation and adaptation strategies for such perturbations, thereby restoring and sustaining forest ecosystems and conserving biodiversity in natural ecosystems.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668477
Funder
Australian Research Council
Funding Amount
$350,000.00
Summary
Upgrade of existing university low field and high field nuclear magnetic resonance facilities. The ongoing pursuit of new medicines and therapies, the development of sustainable forestry management practices and the assessment of the impact of global climate change on Australian forest soils are some of the research objectives being addressed by researchers at Griffith University. The Eskitis Institute for Cell and Molecular Therapies and the Centre for Forestry and Horticultural Research (CFHR) ....Upgrade of existing university low field and high field nuclear magnetic resonance facilities. The ongoing pursuit of new medicines and therapies, the development of sustainable forestry management practices and the assessment of the impact of global climate change on Australian forest soils are some of the research objectives being addressed by researchers at Griffith University. The Eskitis Institute for Cell and Molecular Therapies and the Centre for Forestry and Horticultural Research (CFHR) bring together researchers from a range of disciplines to further research in these key areas. The instruments funded here will provide researchers with access to spectroscopic facilities with state-of-the-art performance. This will ensure the continued international competitiveness and the sustained productivity of our research programmes.Read moreRead less