Soil Electrical Conductivity (EC)

AUS-TSW-AGR-SEC General Moderate confidence

Benchmark Value

No specific value — see range

Range: 0.15 to 0.5 dS/m

Optimal Range: 0.15 to 0.5

Direction: Lower is desirable ↓

Form: OptimalRange

Scoring Curve

This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 17 benchmarks together — the OptimalRange form drives the primary score, while 16 guard(s) constrain the result.

Contributing Benchmarks

OptimalRange Primary MinimumOnly Guard UpperThreshold Guard MaximumOnly Guard OptimalRange Guard Point Guard OptimalRange Guard MinimumOnly Guard Point Guard OptimalRange Guard MaximumOnly Guard MinimumOnly Guard MinimumOnly Guard OptimalRange Guard OptimalRange Guard OptimalRange Guard OptimalRange Guard

Evidence & Context

Optimal Range 0.15 - 0.50 dS/m represents a state of high environmental health.

Metric Definition:

Soil Electrical Conductivity (EC) measured as ECe (saturated paste extract)

Benchmark Definition:

This benchmark defines the optimal soil electrical conductivity range indicating high environmental health in agricultural crop production soils.

Justification:

This range balances the dual roles of soil EC, avoiding both nutrient deficiency and osmotic stress, supporting microbial function and plant growth.

Sources (2)

Soil - RegenWA GreyLiterature

Soil - RegenWA

View Source

Preview of Which material can be used to reduce electrical conductivity of soil? And what are the disadvantages when electrical conductivity of soil increases ? | ResearchGate, accessed July 9, 2025,

Which material can be used to reduce electrical conductivity of soil? And what are the disadvantages when electrical conductivity of soil increases ? | ResearchGate, accessed July 9, 2025, GreyLiterature

UNDERSTANDING YOUR STEP BY STEP Cath Botta - Goulburn ...

View Source

Supporting Sources (5)

Additional references from the underlying research that informed this benchmark.

Regenerative agriculture in Australia: the changing face of farming - Frontiers, accessed August 4, 2025

Contextual Support Journal

Regenerative agriculture is key to dry season preparation - Soils For Life, accessed July 23, 2025

View Source

Salinity - Murray�darling Basin Authority

Contextual Support Journal

Salinity - Murray–Darling Basin Authority

View Source

Soil electrical conductivity (EC) is a measure of the amount ... - USDA

Contextual Support Journal

Regenerative Agriculture - NSW Department of Primary Industries

View Source

Soil Health Assessment - Natural Resources Conservation Service - USDA, accessed August 5, 2025,

Contextual Support Government

Soil Health Assessment - Natural Resources Conservation Service - USDA

View Source

Stream-salinity-status-and-trends-in-south-west-WA.pdf - Government of Western Australia, accessed July 10, 2025,

Contextual Support GreyLiterature

Stream-salinity-status-and-trends-in-south-west-WA.pdf - Government of Western Australia, accessed July 10, 2025

View Source

Context

Region Australia
Biome Temperate Semi-Arid Shrublands & Open Woodlands
Land Use Agricultural Crop Production
Assessment Not Stated
Evidence Type HealthyOperationalRange

Lifecycle

Status Active
Version 1
Effective From 7 Jun 2026

Notes

Indicates successful management of water and salt balance fostering biologically active soil. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.

Related Benchmarks

Other benchmarks in the AUS-TSW-AGR-SEC family.