Soil Electrical Conductivity (EC)

AUS-AKW-CON-SEC General Moderate confidence

Benchmark Value

15.2 dS/m

Direction: Lower is desirable ↓

Form: Point

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

CompositeFramework Primary Point Guard OptimalRange Guard OptimalRange Guard OptimalRange Guard MaximumOnly Guard Point Guard OptimalRange Guard MaximumOnly Guard Point Guard OptimalRange Guard MinimumOnly Guard MaximumOnly Guard OptimalRange Guard MaximumOnly Guard

Evidence & Context

Reference Benchmark Value: A median value of 15.2 dS/m is established as the reference benchmark for topsoil (0-30 cm).

Metric Definition:

Soil Electrical Conductivity (EC) measured as 1:5 soil-to-water extract in the topsoil (0-30 cm)

Benchmark Definition:

Median soil electrical conductivity value representing the central tendency of soil salinity in high-integrity conservation areas of the Arid Karstic Woodlands & Shrublands biome.

Justification:

The median is preferred over the mean because it is less influenced by extreme outliers, providing a stable representation of soil salinity in the best available natural condition.

Supporting Sources (1)

Additional references from the underlying research that informed this benchmark.

TERN AusPlots, Ecosystem Surveillance Monitoring, Australia

Direct Evidence

TERN AusPlots, Ecosystem Surveillance Monitoring, Australia

View Source

Context

Region Australia
Biome Arid Karstic Woodlands & Shrublands
Land Use Conservation / Protected Natural Areas
Assessment Pristine Reference
Vegetation Shrubland
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 7 Jun 2026

Notes

No upper detrimental threshold — higher values are always better up to natural saturation. This benchmark reflects the natural saline condition of the Arid Karstic Woodlands & Shrublands biome, where high soil EC is a natural characteristic supporting halophytic vegetation.

Related Benchmarks

Other benchmarks in the AUS-AKW-CON-SEC family.