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FGARA Digital Soil Mapping Output - Soil Surface pH

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About this Collection

FGARA Digital Soil Mapping Output - Soil Surface pH


Soil surface pH is one of 19 attributes of soils chosen to underpin the land suitability assessment of the Flinders and Gilbert Agricultural Resource Assessment (FGARA) project through the digital soil mapping process (DSM). This raster data (in GeoTIFF format) represents a modelled surface of pH of the soil surface measured in standard pH units an... more


Agricultural Land Management Agricultural Land Planning Agricultural Spatial Analysis and Modelling


https://doi.org/10.4225/08/530429665098D


01 Sep 2013


CSIRO Enquiries
CSIROEnquiries@csiro.au
1300 363 400

FGARA soil surface pH AGRICULTURE-Crops AGRICULTURE-Irrigation Australia INDUSTRY-Primary LAND-Use Queensland SOIL Flinders catchment Gilbert catchment soil attributes Digital Soil Mapping


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Bartley R, Thomas MF, Clifford D, Phillip S, Brough D, Harms D, Willis R, Gregory L, Glover M, Moodie K, Sugars M, Eyre L, Smith DJ, Hicks W and Petheram C (2013) Land suitability: technical methods. A technical report to the Australian Government for the Flinders and Gilbert Agricultural Resource Assessment (FGARA) project, CSIRO.

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Flinders and Gilbert Agricultural Resource Assessment website

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North Queensland Irrigated Agriculture Strategy website


This data has been created from a range of inputs and processing steps. Below is an overview. Broadly, the steps were to: 1. Collate existing data (data related to: climate, topography, soils, natural resources, remotely sensed etc of various formats; reports, spatial vector, spatial raster etc.). 2. Select additional soil and attribute site data by Latin hypercube statistical sampling method applied across the covariate space. 3. Carry out fieldwork to collect additional soil and attribute data and understand geomorphology and landscapes. 4. Build models from selected input data and covariate data using predictive learning via rule ensembles in the RuleFit3 software. 5. Create Soil Surface pH Digital Soil Mapping (DSM) key attribute output data. DSM is the creation and population of a geo-referenced database, generated using field and laboratory observations, coupled with environmental data through quantitative relationships. It applies pedometrics - the use of mathematical and statistical models that combine information from soil observations with information contained in correlated environmental variables, remote sensing images and some geophysical measurements. Quality assessment of the attribute data is mapped spatially as a function of the model output by evaluating the rigour of the DSM attribute data using non-parametric bootstrapping of the DSM modelling. For more information refer to “Land suitability: technical methods. A technical report to the Australian Government for the Flinders and Gilbert Agricultural Resource Assessment (FGARA) project”.


This work was prepared for the Office of Northern Australia in the Australian Government Department of Infrastructure and Regional Development under the North Queensland Irrigated Agriculture Strategy <http://www.regional.gov.au/regional/ona/nqis.aspx>. The Strategy is a collaborative initiative between the Office of Northern Australia, the Queensland Government and CSIRO. One part of the Strategy is the Flinders and Gilbert Agricultural Resource Assessment, which was led by CSIRO. Important aspects of the Assessment were undertaken by the Queensland Government and TropWATER (James Cook University).


CSIRO Data Licence


CSIRO (Australia), Office of Northern Australia (Australia), Queensland Department of Natural Resources and Mines (Australia), Queensland Department of Science, Information Technology, Innovation and the Arts (DSITIA) (Australia)


Bartley, Rebecca; Thomas, Mark; Clifford, David; Philip, Seonaid; Brough, Dan; Harms, Ben; Willis, Reanna; Gregory, Linda; Glover, Mark; Moodie, Keith; Sugars, Mark; Eyre, Lauren; Smith, Doug; Hicks, Warren; Petheram, Cuan (2013): FGARA Digital Soil Mapping Output - Soil Surface pH. v2. CSIRO. Data Collection. https://doi.org/10.4225/08/530429665098D


All Rights (including copyright) CSIRO Australia 2013.


The metadata and files (if any) are available to the public.

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Location Details

16°0′0″ S


22°0′0″ S


145°0′0″ E


139°41′60″ E


WGS84


More about this Collection

Linda Gregory


Research Projects Officer





Raster




eng


utf8


Geoscientific Information


About this Project

1211.1 Gulf Agricultural Resource Assess


The Flinders and Gilbert catchments in north Queensland have been identified as potential areas for further agricultural development. The Flinders and Gilbert Agricultural Resource Assessment (the Assessment) provides a comprehensive and integrated evaluation of the feasibility, economic viability and sustainability of agricultural development in t... more


Cuan Petheram


Digital Soil Mapping


Soil survey methods have evolved with the expansion in computing power in recent decades allowing soil attributes (e.g. pH) collected at a specific point in space, to be related to comprehensive data on physical attributes or covariates (e.g. slope, geology) that are available over the whole spatial extent of the area. The relationship between thes... more


Modelling


Rebecca Bartley


Mark Thomas


David Clifford


Seonaid Philip


Dan Brough


Ben Harms


Reanna Willis


Linda Gregory


Mark Glover


Keith Moodie


Mark Sugars


Lauren Eyre


Doug Smith


Warren Hicks


Cuan Petheram


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