The auditability of soil carbon at the farm scale
My research topic aims to devise an efficient method for analysing soil carbon and provide a scheme for measuring and monitoring of soil carbon storage at the farm scale.
A refined auditing system can be developed by using a design-based approach on existing data combined with annual soil sampling of different soil types and production systems.
This will enable the participation of agriculture in the carbon economy as a supplier of carbon credits and contribute to the function of cap-and-trade systems, and also provide support for improved land management by adding value to ecosystem services.
Where is the water going? Scaling forest water budgets to explain spatial and temporal variation in evapotranspiration.
My project aims to develop techniques and models to scale water balances up and down from tree to catchment (spatial) and sub-daily to yearly (temporal) scales. This will be used to understand where water is being lost from the catchment area of Corin Reservoir, ACT (‘study area’). There is a need to find out what is going on in terms of evapotranspiration in montane and woodland forest with species and vegetation formations other than those mentioned, such as E. dalrympleana forest and E. pauciflora woodland, to improve our understanding of how water is lost from the study area, to enhance the management of drinking water.
Economic and environmental efficiency of irrigated enterprises in the Murray-Darling Basin.
Water use in agriculture and the associated environmental pressures are of major concern in Australia. My study aims to measure environmental and economic efficiency of irrigated enterprises across seventeen natural resource management (NRM) regions in the Murray-Darling Basin.
There seems to be a knowledge gap on how to efficiently allocate government funding so as to secure the maximum environmental outcomes per dollar spent. My PhD research will shed more light on this, by focusing on the measurement of economic and environmental performance of the irrigated agricultural enterprises.
The ecological impact of dust emitted from Cowal Gold Mine (CGM).
I aim to determine the likely provenance of an aeolian component in the topsoil surrounding Cowal Gold Mine (CGM); and to assess the current and future ecological impact of these aeolian materials. Findings from this work may potentially benefit the ecosystem surrounding CGM, and those ecosystems adjoining mines elsewhere in regional Australia. Ideally this work will contribute towards the generation of appropriate EIL’s for soil in rural and ecologically sensitive areas.
Reconstructing the Angkorian Channel Network
I am working on an ancient water management system at Angkor, Cambodia.
In the 1950's it was proposed that mismanagement of the water resource supplied by irrigation channels resulting in reduction in the required rice production. My research is essentially trying to demonstrate whether this hypothesis holds any water.
Using the sediment distribution and cross-sectional dimensions of the channels in hydrological models I am solving an archeological problem, plus providing a benchmark to compare contemporary concepts of 'sustainability'.
A Study of the Chemistry of Soybean Protein Curds
My project aims to ascertain role of proteins, lipids and saccharides in soybean on chemical and physical properties of tofu, explore novel approaches to improve the yield of soy milk, as well as examine the effect of ageing and storage on the chemistry of soy protein, ascertain the roles of aged constituents on the chemical and physical characteristics of soy protein curds.
At the moment, research has shown that soybean stored in high relative humidity and temperature will lead to the decreased yield, poor texture and dark color of soymilk and tofu.
Defense mechanisms of melon against Colletotrichum lagenarium and induces resistance with acibenzolar-S-methyl
My project aims to survey the infection process of C. lagenarium on melon seedlings, investigate the mechanisms of the interaction between melon and C. lagenarium and the efficacy of ASM on control of C. lagenarium. At the moment, research has shown the Colletotrichum fungus can penetrate leaves directly and does not require natural openings (e.g. stomates) or wounds. Previously, findings have demonstrated that in some phytopathogenic fungi, asexual spores called conidia germinate and develop a specific infection structure called an appressorium that enables fungal penetration of the host plant.
Acid buffering capacity of clay minerals in acid sulfate soils.
My PhD research is aimed to determine the dissolution rates of monomineralic clay samples and minerals isolated from inland acid sulfate soil samples and their acid buffering capacity in acidic soil solutions.
Study of mineral dissolution rates is important to understand and control environmental effect of acid mine drainage, soil acidification and other geological processes. Work has been done on clay mineral weathering; however, there is still a need to do a comparative acid dissolution study on pure clay mineral samples and on clay fraction separated from soil samples.