Guiding early silvicultural interventions through predicting canopy and crown dynamics in plantations of sub-tropical eucalypts. This project aims to establish the scientific basis for silvicultural treatments of eucalypt plantations for clear wood production. While eucalypt plantations in north-eastern NSW have dramatically increased in recent times, the knowledge base for the production clear, branch-free wood from the tree species used does not exist. A physiological, mechanistic understandin ....Guiding early silvicultural interventions through predicting canopy and crown dynamics in plantations of sub-tropical eucalypts. This project aims to establish the scientific basis for silvicultural treatments of eucalypt plantations for clear wood production. While eucalypt plantations in north-eastern NSW have dramatically increased in recent times, the knowledge base for the production clear, branch-free wood from the tree species used does not exist. A physiological, mechanistic understanding of crown and canopy dynamics as well as branch shedding will form the scientific foundation for stand manipulations such as pruning and thinning to enhance wood quality. Project outcomes will provide the basis for a stand management simulation model for the most important eucalypt species.Read moreRead less
Quantifying tree and soil respiration and their responses to global change. The Australian Greenhouse Office, as well as independent analysis, recognizes that belowground processes must be better quantified if Australia's contributions to atmospheric concentrations of greenhouse gases (GG) are to be firmly based. A major issue is the lack of dedicated research focused on soil and plant root emissions of GG and, in particular, a lack of testing of methodologies suited to Australian soils and con ....Quantifying tree and soil respiration and their responses to global change. The Australian Greenhouse Office, as well as independent analysis, recognizes that belowground processes must be better quantified if Australia's contributions to atmospheric concentrations of greenhouse gases (GG) are to be firmly based. A major issue is the lack of dedicated research focused on soil and plant root emissions of GG and, in particular, a lack of testing of methodologies suited to Australian soils and conditions. This project will address these concerns. We will also be addressing the clear need for further training of PhD qualified researchers in the field of climate change. Read moreRead less
Non-CO2 greenhouse gas emissions in afforested ecosystems in southeastern Australia - fluxes, processes and regional budget. There are no data available about the extent of emissions of the non-CO2 greenhouse gases nitrous oxide and methane from soils of forest ecosystems in Australia and the current methodolgy to quantify these emissions contains high uncertainties. Using the latest technology available we propose to i) measure emission rates of afforested ecosystems for non-CO2 greenhouse gase ....Non-CO2 greenhouse gas emissions in afforested ecosystems in southeastern Australia - fluxes, processes and regional budget. There are no data available about the extent of emissions of the non-CO2 greenhouse gases nitrous oxide and methane from soils of forest ecosystems in Australia and the current methodolgy to quantify these emissions contains high uncertainties. Using the latest technology available we propose to i) measure emission rates of afforested ecosystems for non-CO2 greenhouse gases in relation to previous land-use in southeastern Australia, ii) identify the processes controlling the emissions, iii) use the obtained data to calibrate a biogeochemical model, and iv) use the model to estimate regional inventories for non-CO2 greenhouse gas emissions in southeastern Australia.Read moreRead less