Australian Soil Cation Exchange Capacity Maps at 90-Meter Resolution

Version 1 of the Australian Soil Cation Exchange Capacity product from the Soil and Landscape Grid of Australia provides modelled estimates of soil cation exchange capacity across the continent. The dataset includes 18 raster maps at six depth intervals from 0-200 cm, with a spatial resolution of 3 arc seconds (~90 meters). It was produced by the Terrestrial Ecosystem Research Network's Data Discovery and follows GlobalSoilMap specifications.

Use Cases

• Modeling soil nutrient retention and availability based on cation exchange capacity values.
• Assessing soil health and fertility across different Australian regions and soil depths.
• Integrating soil property data with land-use or climate models for agricultural planning.
• Validating or supplementing field measurements of soil chemistry with spatially continuous estimates.

Strengths

• Provides data for six specific soil depth intervals (0-5 cm to 100-200 cm), consistent with GlobalSoilMap standards.
• Each depth layer has approximately 2.007 billion pixels (49200 x 40800), offering high spatial detail.
• Includes upper and lower confidence limits for each of the 18 attribute maps, allowing for uncertainty assessment.
• Covers a long temporal period, with data approximately representing conditions from 1970 to 2022.

Limitations

• Data is modelled and represents estimates, not direct measurements, which may introduce uncertainty.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description does not specify the modelling methodology or validation metrics in detail.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery

Collection Method

Modelled estimate based on the Soil and Landscape Grid of Australia.

Time Range

1970-2022 (approximate temporal coverage)

Freshness

Last updated 2026-06-13 13:02:39.135078; freshness should be verified.

Geography

Australia