92cf4bc6-5ee6-48bd-9cbe-852ce901d57e urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2025-11-13T07:38:42 creation ISO 19115 2016 Digital soil maps for key soil properties over New South Wales, version 2.0 92cf4bc6-5ee6-48bd-9cbe-852ce901d57e Digital soil maps (DSMs) are prepared through quantitative modelling techniques that are based on relationships between soil attributes and the environment. DSMs are presented over NSW for a range of key soil properties, including soil organic carbon (SOC), pH, cation exchange capacity, sum-of-bases, available phosphorous, bulk density, clay, silt and sand (total and fine). The maps are at 100 m spatial resolution and cover ten soil depth intervals down to 2 m, consistent with widely used Australian and international systems. Random Forest decision tree modelling techniques were applied. Validation results for the maps indicate generally moderate to high performance and effectiveness. Maps of mean plus upper 95% and lower 5% prediction limits are available. The maps provide at least a useful first approximation of these soil properties across the State. The products are described more fully in the technical report: Gray (2023), Digital soil mapping of key soil properties over NSW, version 2.0 (76p). The report and raster layers can be downloaded through the NSW environmental data portal SEED (https://www.seed.nsw.gov.au/) and are also viewable through the DPE soil and landscape spatial viewer eSPADE (http://espade.environment.nsw.gov.au ). All maps, including prediction limits and intervals, are also available through the DPE data broker. {"type": "Polygon", "coordinates": [[[141, -37.7], [141, -28], [154, -28], [154, -37.7], [141, -37.7]]]} 141.0 154.0 -37.7 -28.0 Data Quality Statement documentDigital PDF Technical report, April 2023 documentDigital PDF SOC NSW DSMs to 1m documentDigital GEOTIFF pH NSW DSMs to 2m documentDigital GEOTIFF Basic cations & CEC NSW DSMs documentDigital GEOTIFF P bray NSW DSMs to 2m documentDigital GEOTIFF Bulk density NSW DSMs to 30cm documentDigital GEOTIFF Particle sizes NSW DSMs to 2m documentDigital GEOTIFF DSM prediction limits NSW all properties documentDigital GEOTIFF