A5019569965- Soil Geostatistics and Mapping
- Soil Carbon and Nitrogen Dynamics
- Geochemistry and Geologic Mapping
- Soil and Unsaturated Flow
- Soil and Land Suitability Analysis
- Soil erosion and sediment transport
- Soil Moisture and Remote Sensing
- Soil Mechanics and Vehicle Dynamics
- Sugarcane Cultivation and Processing
- Hydrology and Watershed Management Studies
- Mineral Processing and Grinding
- Soil Management and Crop Yield
- Rangeland and Wildlife Management
- Landslides and related hazards
- Image Processing and 3D Reconstruction
- Flow Measurement and Analysis
- Natural Products and Biological Research
- Electrical and Bioimpedance Tomography
- Crop Yield and Soil Fertility
- Chromosomal and Genetic Variations
- Groundwater flow and contamination studies
- Plant Disease Resistance and Genetics
- Pasture and Agricultural Systems
- Forest ecology and management
- Irrigation Practices and Water Management
Queensland University of Technology
2023
Commonwealth Scientific and Industrial Research Organisation
2000-2019
Health Sciences and Nutrition
2013-2019
Norwich Research Park
2019
John Innes Centre
2019
CSIRO Land and Water
1999-2014
Abstract Explicit and quantitative models for the spatial prediction of soil landscape attributes are required environmental modelling management. In this study, advances in representation hydrological geomorphological processes using terrain analysis techniques integrated with development a field sampling soil-landscape model building strategy. Statistical developed relationships between (plan curvature, compound topographic index, upslope mean plan curvature) (A horizon depth, Solum E...
Soils are increasingly recognized as major contributors to ecosystem services such food production and climate regulation (1, 2), demand for up-to-date relevant soil information is soaring. But communicating among diverse audiences remains challenging because of inconsistent use technical jargon, outdated, imprecise methods. Also, spatial resolutions maps most parts the world too low help with practical land management. While other earth sciences (e.g., climatology, geology) have become more...
Abstract. The Intergovernmental Technical Panel on Soils has completed the first State of World's Soil Resources Report. Globally soil erosion was identified as gravest threat, leading to deteriorating water quality in developed regions and lowering crop yields many developing regions. We need increase nitrogen phosphorus fertilizer use infertile tropical semi-tropical soils – where most food insecurity among us are found while reducing global these products overall. Stores organic carbon...
This essential reference provides an introduction to the remarkable soils and landscapes of Australia. It reveals their great diversity explains why understanding soil properties landscape processes should guide our use land. Using striking photographs characteristic landscapes, it begins by describing basic how Australia's distinctive have co-evolved. We gain a greater particular occur at certain locations variation can influence processes, agricultural productivity ecosystem function. The...
Abstract The development of pedotransfer functions offers a potential means alleviating cost and labour burdens associated with bulk‐density determinations. As incorporating priori knowledge into the model‐building process, we propose conceptual model for predicting soil bulk density from other more regularly measured properties. considers to be function mineral packing structures ( ρ m ) structure (Δ ). Bulk‐density maxima were found soils approximately 80% sand. Bulk densities also...
Iron (Fe) oxide mineralogy in most Australian soils is poorly characterized, even though Fe oxides play an important role soil function. reflect the conditions of pH, redox potential, moisture, and temperature environment. The strong pigmenting effect gives their color, which largely a reflection soil's mineralogy. Visible–near‐infrared (vis–NIR) spectroscopy can be used to identify measure abundance certain soil, visible range derive tristimuli color information. aims this paper are (1)...
The Australian Soil Resources Information System (ASRIS) database compiles the best publicly available information across Commonwealth, State, and Territory agencies into a national of soil profile data, digital land resources maps, climate, terrain, lithology datasets. These datasets are described in detail this paper. Most thematic grids that cover intensively used agricultural zones Australia.
This study evaluated the accuracy of pressure plate apparatus for measuring soil water retention at −0.5 and −1.5 MPa matric potential. Samples from 35 contrasting Australian soils were wetted with distilled drained on MPa. The potential each sample was then determined using a thermocouple psychrometer, content measured. Water exactly independently by interpolating between replicates potential–water data measured psychrometer. samples apparent equilibrium plates compared these “target”...
Organic carbon and nitrogen found in soils are subject to a range of biological processes capable generating or consuming greenhouse gases (CO2, N2O CH4). In response the strong impact that agricultural management can have on amount organic stored soil their rates cycling, potential reduce enhance concentrations atmosphere. Concern also exists over positive feedback changing climate may gas emission from soil. Climate projections for most regions Australia suggest warmer drier future with...
Abstract. The Intergovernmental Technical Panel on Soils has completed the first State of World's Soil Resources report. Globally soil erosion was identified as gravest threat, leading to deteriorating water quality in developed regions and lowering crop yields many developing regions. We need increase nitrogen phosphorus fertilizer use infertile tropical semi-tropical soils – where most food insecure among us are found while reducing global these products overall. Stores organic carbon...
We describe the information content of soil visible–near infrared (vis–NIR) reflectance spectra and map their spatial distribution across Australia. The 4030 surface samples from country were measured with a vis–NIR spectrometer in range 350 to 2500 nm. compressed by principal component analysis (PCA) resulting scores mapped ordinary point kriging. largely dominant common feature maps was difference between more expansive, older weathered landscapes centre west Australia generally younger,...
Prediction of the movement and storage water in soil is central to quantitative land evaluation. However, spatial temporal predictions have not been provided by most Australian surveys. The saturated hydraulic conductivity (Ks) an essential parameter for description its estimation has considered too difficult logistic technical reasons. Ks cannot be measured everywhere relationships with readily observed morphological variables established. conventional morphology itself a poor predictor Ks....