Soil and Landscape Grid National Soil Attribute Maps - Available Phosphorus (3" resolution) - Release 1
This is Version 1 of the Australian Available Phosphorus product of the Soil and Landscape Grid of Australia.<br></br>
The map gives a modelled estimate of the spatial distribution of available phosphorus in soils across Australia.<br></br>
The Soil and Landscape Grid of Australia has produced a range of digital soil attribute products. Each product contains six digital soil attribute maps, and their upper and lower confidence limits, representing the soil attribute at six depths: 0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm and 100-200 cm. These depths are consistent with the specifications of the GlobalSoilMap.net project - <a href=" https://esoil.io/TERNLandscapes/Public/Pages/SLGA/Resources/GlobalSoilMap_specifications_december_2015_2.pdf ">GlobalSoilMaps</a>. The digital soil attribute maps are in raster format at a resolution of 3 arc sec (~90 x 90 m pixels).<br>
Detailed information about the Soil and Landscape Grid of Australia can be found at - <a href=" https://esoil.io/TERNLandscapes/Public/Pages/SLGA/index.html ">SLGA</a><br></br>
<ul style="list-style-type: disc;"><li>Attribute Definition: Available Phosphorus<br>
<li>Units: mg/kg;<br>
<li>Period (temporal coverage; approximately): 1970-2021;</li>
<li>Spatial resolution: 3 arc seconds (approx 90 m);</li>
<li>Total number of gridded maps for this attribute: 18;</li>
<li>Number of pixels with coverage per layer: 2007M (49200 * 40800);</li>
<li>Data license: Creative Commons Attribution 4.0 (CC BY);</li>
<li>Target data standard: GlobalSoilMap specifications;</li>
<li>Format: Cloud Optimised GeoTIFF.
Simple
Identification info
- Date (Creation)
- 2022-07-27
- Date (Publication)
- 2022-10-31
- Date (Revision)
- 2025-12-10
- Edition
- 1.0
Identifier
Publisher
Author
- Website
- https://www.tern.org.au/
- Purpose
- The map gives a modelled estimate of the spatial distribution of soil Available Phosphorus Capacity across Australia.
- Credit
- We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
- Credit
- <p></p>The observed data used to produce this map was obtained from state and federal soil survey agencies.<br><br> This work was jointly funded by the Terrestrial Ecosystem Research Network (TERN), an Australian Government National Collaborative Research Infrastructure Strategy (NCRIS) project, and CSIRO.<br><br> CSIRO maintains and makes the data through the Australian Soil Resource Information System.
- Status
- Completed
Point of contact
Spatial resolution
- Spatial resolution
- 90
- Topic category
-
- Environment
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 1970-01-01 2022-07-27
- Maintenance and update frequency
- Not planned
- GCMD Science Keywords
- ANZSRC Fields of Research
- TERN Parameter Vocabulary
- QUDT Units of Measure
- GCMD Horizontal Resolution Ranges
- GCMD Temporal Resolution Ranges
- Keywords (Discipline)
-
- TERN_Soils
- TERN_Soils_DSM
- Soil
- TERN
- Raster
- Attribute
- Available
- Phosphorus
- Continental
- DSM
- Global Soil Map
- Spatial modelling
- 3-dimensional soil mapping
- Spatial uncertainty
- Soil Maps
- Digital Soil Mapping
- SLGA
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- Other restrictions
- Other constraints
- TERN services are provided on an "as-is" and "as available" basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN. <br /><br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting
- Other constraints
- Please cite this dataset as {Author} ({PublicationYear}). {Title}. {Version, as appropriate}. Terrestrial Ecosystem Research Network. Dataset. {Identifier}.
Resource constraints
- Classification
- Unclassified
Distribution Information
- Distribution format
-
Distributor
Distributor
- OnLine resource
- Cloud Optimised GeoTIFFs - Available Phosphorus, v1
- OnLine resource
- Landscape Data Visualiser - Available Phosphorus, v1
- OnLine resource
-
AVP_v1
SLGA Available Phosphorus - v1
- OnLine resource
-
AVP_v1
SLGA Available Phosphorus - v1
- OnLine resource
- ro-crate-metadata.json
Distribution Information
- Distribution format
-
Distributor
Distributor
- OnLine resource
- File Naming Conventions
Resource lineage
- Statement
- This dataset models the spatial distribution of Available Phosphorus using a commonly measured analyte, bicarbonate - extractable phosphorus (Colwell P) (Method 9B1 & 9B2 - Rayment and Lyons 2010). It provides estimates of Colwell P across Australia for each Global Soil Map (GSM) depth interval at a 3 arcsecond resolution (80 - 100 m pixel depending on where in Australia). The data is supplied as single band GeoTIFF rasters and includes the 5th, 50th and 95th percentile predictions (Based on a 90% confidence interval) for each GSM depth.<br><br> Legacy Colwell P data currently stored in government agency soil databases in Australia that are from non-fertilised, non-cropped relatively undisturbed sites is being used to estimate AP. No new P data was collected for this project. Agency data was accessed using the newly developed Soil Data Federator Web API (Searle, pers.coms.). The Cowell P point data was combined with environmental covariates from the TERN national set to build a model of how Cowell P varies across Australia. Covariates were selected that best reflected the geography, geology, and climate of Australia. The model was built using the machine learning algorithm, Random Forests, which is commonly used in digital soil mapping in Australia.<br><br> All processing for the generation of these products was undertaken using the R programming language. R Core Team (2020).<br><br> <ul style="list-style-type: disc;"><li>Code - https://github.com/AusSoilsDSM/SLGA</li> <li>Observation data - https://esoil.io/TERNLandscapes/Public/Pages/SoilDataFederator/SoilDataFederator.html</li> <li>Covariate rasters - https://esoil.io/TERNLandscapes/Public/Pages/SLGA/GetData-COGSDataStore.html</li>
- Hierarchy level
- Dataset
- Title
- Methods Summary for Soil Available Phosphorus
- Website
-
https://aussoilsdsm.esoil.io/slga-version-2-products/available-phosphorus
Method documentation
- Title
- Rayment, G. E., & Lyons, D. J. (2010). Soil Chemical Methods - Australasia. Australian soil and land survey handbooks. CSIRO Publishing. 10.1071/9780643101364.
- Website
-
http://doi.org/10.1071/9780643101364
Method documentation
- Title
- R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria.
- Website
-
https://www.R-project.org
Method documentation
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/c6ef289b-1ca8-4e53-b8b4-aa97e4706c63
- Title
- TERN GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/c6ef289b-1ca8-4e53-b8b4-aa97e4706c63
Point-of-truth metadata URL
- Date info (Creation)
- 2021-08-10T00:00:00.000000+00:00
- Date info (Revision)
- 2025-12-10T10:16:52.668752+00:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0
Identifier
Overviews
Spatial extent
Provided by
