Special Research Initiatives - Grant ID: SR0354740
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
CaGaWaLo: regulation of carbon gain and water loss by woody vegetation. Trees and shrubs are widely perceived as central to solving problems of national and international significance. Seed funding is sought to facilitate establishment of a research network focused on their ability to sequester carbon and transmit water to the atmosphere. The proposed network is broadly based in plant physiology and ecology and contains a strong cross-section of leading international expertise in relevant sub- ....CaGaWaLo: regulation of carbon gain and water loss by woody vegetation. Trees and shrubs are widely perceived as central to solving problems of national and international significance. Seed funding is sought to facilitate establishment of a research network focused on their ability to sequester carbon and transmit water to the atmosphere. The proposed network is broadly based in plant physiology and ecology and contains a strong cross-section of leading international expertise in relevant sub-disciplines. By leveraging the huge pool of international expertise and focusing on a range of scales (from molecular to biosphere scales), this network will yield new ideas and approaches that will produce outputs and outcomes of national significance.Read moreRead less
Tree water use and amelioration of dryland salinity. Dryland salinity is a huge problem for large areas of Australia. One proposal for ameliorating dryland salinity is to plant trees in upslope sites in the landscape. Such planted forests reduce movement of water through the landscape, thereby reducing mobilisation and discharge of stored salts downslope onto agricultural and sensitive riparian areas. This project will investigate tree water use in a native forest, compare it with a planted fo ....Tree water use and amelioration of dryland salinity. Dryland salinity is a huge problem for large areas of Australia. One proposal for ameliorating dryland salinity is to plant trees in upslope sites in the landscape. Such planted forests reduce movement of water through the landscape, thereby reducing mobilisation and discharge of stored salts downslope onto agricultural and sensitive riparian areas. This project will investigate tree water use in a native forest, compare it with a planted forest in the same location and investigate fundamental relationships among climate, tree size, canopy area and water use. The outcome of this project is a deep mechanistic understanding of the efficacy of trees for salinity abatement.Read moreRead less
Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial ana ....Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial analysis and modelling methods. Expected outcomes are a mechanistic understanding of tree-mediated methane fluxes, helping to constrain regional, national and global methane budgets. The results of this study will help inform publicly funded greenhouse gas abatement strategies, ensuring a maximal return on investment.Read moreRead less
The future of forests under climatic stress. This project aims to measure the vulnerability of forest trees to more extreme drought as global temperatures inevitably rise. Australian forests face the immediate threat of increased mortality associated with intensifying drought stress in the future. Understanding the magnitude of this threat is of the utmost urgency. This project aims to predict future mortality of forest communities in Australia and worldwide using recent breakthroughs enabling t ....The future of forests under climatic stress. This project aims to measure the vulnerability of forest trees to more extreme drought as global temperatures inevitably rise. Australian forests face the immediate threat of increased mortality associated with intensifying drought stress in the future. Understanding the magnitude of this threat is of the utmost urgency. This project aims to predict future mortality of forest communities in Australia and worldwide using recent breakthroughs enabling the rapid quantification of lethal stress in trees. This new understanding will provide a basis upon which to make far-reaching decisions about land management, conservation and restoration.Read moreRead less
Temperature response and thermal acclimation of mesophyll conductance. Photosynthetic rate and efficiency depend on diffusion of carbon dioxide from the atmosphere into leaf mesophyll cells. Carbon dioxide diffusion is affected by temperature, but we lack knowledge of how this varies between plant species. Stable isotope methodology will be used to characterise the temperature response of this carbon dioxide diffusion step. Plants from contrasting climates will be grown in different temperature ....Temperature response and thermal acclimation of mesophyll conductance. Photosynthetic rate and efficiency depend on diffusion of carbon dioxide from the atmosphere into leaf mesophyll cells. Carbon dioxide diffusion is affected by temperature, but we lack knowledge of how this varies between plant species. Stable isotope methodology will be used to characterise the temperature response of this carbon dioxide diffusion step. Plants from contrasting climates will be grown in different temperature regimes to reveal the extent of variation in adaptation and acclimation to temperature. This will provide new insights towards modifying photosynthesis to increase crop yield and it will also improve forecasting of global atmospheric carbon dioxide fluxes derived from the analysis of atmospheric isotope data.Read moreRead less
The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved ca ....The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved capacity to predict the function and composition of future forests. This project will provide significant benefits to communities concerned with the direct and indirect effects of droughts in protected areas, forestry reserves and agriculture. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100177
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
Non invasive rapid plant phenotyping for root architecture in soil and acquisition of micro-nutrients. By combining advanced X-ray computed tomography and X-ray fluorescence spectrometry in this facility, plant scientists will be able to quantify precisely the effects of root pathogens, drought and other stresses on root development in relation to plant nutrient status. This facility will be unique in Australia and provide a significant competitive advantage internationally for Australian resear ....Non invasive rapid plant phenotyping for root architecture in soil and acquisition of micro-nutrients. By combining advanced X-ray computed tomography and X-ray fluorescence spectrometry in this facility, plant scientists will be able to quantify precisely the effects of root pathogens, drought and other stresses on root development in relation to plant nutrient status. This facility will be unique in Australia and provide a significant competitive advantage internationally for Australian research.Read moreRead less
Ecohydrological feedbacks between vegetation and soil in natural and engineered landforms in arid Australia. We address 'An Environmentally Sustainable Australia'. 1. Water is the binding factor in our project, defining vegetation, geomorphology and hydrology. 2. Rehabilitation is an integral part of the mining business. Our project is instrumental in developing ecological engineering approaches to rehabilitation. 3. Ultimate goal of the project is to develop stable landforms, protecting underly ....Ecohydrological feedbacks between vegetation and soil in natural and engineered landforms in arid Australia. We address 'An Environmentally Sustainable Australia'. 1. Water is the binding factor in our project, defining vegetation, geomorphology and hydrology. 2. Rehabilitation is an integral part of the mining business. Our project is instrumental in developing ecological engineering approaches to rehabilitation. 3. Ultimate goal of the project is to develop stable landforms, protecting underlying rock. 4. We investigate locally adapted native plant species for use in arid-zone land rehabilitation, to preserve biodiversity. 5. The area of study is exposed to long droughts and cyclonic rainfall. Understanding the resilience of the landscape will provide pivotal insight into the impact and potential adaptive response to climate variability.Read moreRead less
Does plasma membrane perception of 2,4-D influence auxin resistance? This project aims to investigate the role of the cell membrane in synthetic auxin herbicide resistance by analysing the functions and interaction partners of candidate resistance proteins. It is expected that this project will generate new knowledge about the very early response of plants to auxin and the difference between susceptible and resistant weeds in perceiving auxin herbicides. Expected outcomes of this project include ....Does plasma membrane perception of 2,4-D influence auxin resistance? This project aims to investigate the role of the cell membrane in synthetic auxin herbicide resistance by analysing the functions and interaction partners of candidate resistance proteins. It is expected that this project will generate new knowledge about the very early response of plants to auxin and the difference between susceptible and resistant weeds in perceiving auxin herbicides. Expected outcomes of this project include the identification of potential herbicide synergists and a greater understanding of how weeds develop resistance to auxin herbicides. This should benefit Australian grain growers by providing more effective weed control options and lessening the amount of unnecessarily-applied herbicide in the environment.Read moreRead less
AirLIFT – an airborne active chlorophyll fluorescence sensing system for assessment of photosynthetic activity in plant canopies. Assessment of plant health and productivity is vital to ensure future food security of the global population under a changing climate. Chlorophyll fluorescence (CF), a signal emitted by green plants, can reveal this information. Although CF has revolutionised photosynthetic research, current measurements are limited to individual plants. Remote sensing of canopy CF is ....AirLIFT – an airborne active chlorophyll fluorescence sensing system for assessment of photosynthetic activity in plant canopies. Assessment of plant health and productivity is vital to ensure future food security of the global population under a changing climate. Chlorophyll fluorescence (CF), a signal emitted by green plants, can reveal this information. Although CF has revolutionised photosynthetic research, current measurements are limited to individual plants. Remote sensing of canopy CF is required for efficient management of agricultural crops, forests, and natural ecosystems and is crucial for accurate estimation of plant carbon assimilation and production. This project will deliver remote sensing technology to bridge the gap between leaf and canopy productivity and pave the way for understanding both artificial and solar induced canopy CF measured from space.Read moreRead less