Soil Electrical Conductivity (EC)

AUS-TSW-LVG-SEC General Moderate confidence

Benchmark Value

0.5 dS/m

Direction: Lower is desirable ↓

Form: MaximumOnly

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 12 benchmarks together — the OptimalRange form drives the primary score, while 11 guard(s) constrain the result.

Contributing Benchmarks

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

Evidence & Context

A value of < 0.5 dS/m is a conservative and robust representation of this best available condition.

Metric Definition:

Electrical Conductivity of a saturated paste extract (ECe) in soil

Benchmark Definition:

This benchmark represents the maximum soil electrical conductivity (EC) value indicating a healthy soil state in temperate semi-arid shrublands and open woodlands under livestock grazing and pasture. Values below 0.5 dS/m reflect low salinity and adequate nutrient availability, preventing salt stress in these ecosystems.

Justification:

The benchmark is synthesized from state-level pasture guidelines and ecological understanding of the system's constraints, rather than from direct study in this biome.

Sources (3)

Preview of Australia's Native Vegetation Framework - DAFF, accessed August 6, 2025,

Australia's Native Vegetation Framework - DAFF, accessed August 6, 2025, Journal

risks and impacts of plant industries on soil condition - Department of Agriculture and Fisheries

Preview of Soil Electrical Conductivity - Natural Resources Conservation Service, accessed May 16, 2025,

Soil Electrical Conductivity - Natural Resources Conservation Service, accessed May 16, 2025, Journal

USDA 12

Preview of Understanding soil tests for pastures | Soil | Farm management ..., accessed May 12, 2025

Understanding soil tests for pastures | Soil | Farm management ..., accessed May 12, 2025 Government

Agriculture Victoria. (2025). Understanding soil tests for pastures. Farm Management.

Supporting Sources (25)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) Introduction, Dryland Salinity: A Key Environmental Issue in Southern Australia, accessed July 10, 2025,

(PDF) Introduction, Dryland Salinity: A Key Environmental Issue in Southern Australia, accessed July 10, 2025,

Contextual Support Journal

(PDF) Introduction, Dryland Salinity: A Key Environmental Issue in Southern Australia, accessed July 10, 2025

Preview of A Guide To Soil Electrical Conductivity (EC): Description, Importance & Soil EC Maps, accessed May 16, 2025,

A Guide To Soil Electrical Conductivity (EC): Description, Importance & Soil EC Maps, accessed May 16, 2025,

Contextual Support GreyLiterature

Soil Electrical Conductivity(EC): What's It, Why Important, How to Measure & More - Latest News from Seeed Studio, accessed July 10, 2025

Preview of Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC, accessed July 10, 2025,

Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC, accessed July 10, 2025,

Contextual Support GreyLiterature

Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC, accessed July 10, 2025

Preview of Do regenerative grazing management practices improve vegetation and soil health in grazed rangelands? Preliminary insights from, accessed August 5, 2025,

Do regenerative grazing management practices improve vegetation and soil health in grazed rangelands? Preliminary insights from, accessed August 5, 2025,

Contextual Support

The effect of climate change on pastoralism in the Australian arid and semi-arid rangelands - Nuffield Farming Scholarships, accessed July 29, 2025,

Preview of Effects of nitrogen and phosphorus on vegetation dynamics of a degraded native grassland in semi-arid south-eastern Australia - CSIRO PUBLISHING | The Rangeland Journal, accessed July 13, 2025,

Effects of nitrogen and phosphorus on vegetation dynamics of a degraded native grassland in semi-arid south-eastern Australia - CSIRO PUBLISHING | The Rangeland Journal, accessed July 13, 2025,

Contextual Support Journal

(PDF) Grassland soil carbon and nitrogen stocks under temperate ..., accessed August 4, 2025,

Preview of Electrical Conductivity (ECe) - 0 - 10 cm | Victoria | Examine | soilquality.org.au, accessed July 10, 2025,

Electrical Conductivity (ECe) - 0 - 10 cm | Victoria | Examine | soilquality.org.au, accessed July 10, 2025,

Contextual Support Government

An alternative method to measure electrical conductivity (EC) and sodium adsorption ratio (SAR) in salt-affected soil extracts - Frontiers, accessed July 10, 2025

Preview of Grazing effects on plant cover, soil and microclimate in fragmented woodlands in south-western Australia: Implications for restoration | Request PDF - ResearchGate, accessed July 10, 2025,

Grazing effects on plant cover, soil and microclimate in fragmented woodlands in south-western Australia: Implications for restoration | Request PDF - ResearchGate, accessed July 10, 2025,

Contextual Support Journal

Grazing effects on plant cover, soil and microclimate in fragmented woodlands in south-western Australia: Implications for restoration | Request PDF - ResearchGate, accessed July 10, 2025

Preview of How To Feed Your Native Plants, accessed July 10, 2025,

How To Feed Your Native Plants, accessed July 10, 2025,

Contextual Support

How To Feed Your Native Plants, accessed July 10, 2025

Preview of Modeling the electrical conductivity relationship between saturated paste extract and 1:2.5 dilution in different soil textural classes - Frontiers, accessed July 10, 2025,

Modeling the electrical conductivity relationship between saturated paste extract and 1:2.5 dilution in different soil textural classes - Frontiers, accessed July 10, 2025,

Contextual Support GreyLiterature

Modeling the electrical conductivity relationship between saturated paste extract and 1:2.5 dilution in different soil textural classes - Frontiers, accessed July 10, 2025

Preview of Response of Grazing Land Soil Health to Management Strategies: A Summary Review, accessed August 5, 2025,

Response of Grazing Land Soil Health to Management Strategies: A Summary Review, accessed August 5, 2025,

Contextual Support Journal

Rangeland Soil Quality: Infiltration - Natural Resources Conservation Service, accessed July 18, 2025

Preview of Response of Grazing Land Soil Health to Management Strategies: A Summary Review, accessed July 10, 2025,

Response of Grazing Land Soil Health to Management Strategies: A Summary Review, accessed July 10, 2025,

Contextual Support Journal

Response of Grazing Land Soil Health to Management Strategies: A Summary Review, accessed July 10, 2025

Preview of Salinity - NSW | Fact Sheets | soilquality.org.au, accessed July 10, 2025,

Salinity - NSW | Fact Sheets | soilquality.org.au, accessed July 10, 2025,

Contextual Support Government

Salinity - NSW | Fact Sheets | soilquality.org.au, accessed July 10, 2025

Preview of Salinity in Western Australia : a situation statement - DPIRD's Digital library, accessed July 10, 2025,

Salinity in Western Australia : a situation statement - DPIRD's Digital library, accessed July 10, 2025,

Contextual Support

finalrepport - MLA, accessed July 28, 2025

Preview of Salinity tolerance in irrigated crops - NSW Department of Primary ..., accessed July 17, 2025,

Salinity tolerance in irrigated crops - NSW Department of Primary ..., accessed July 17, 2025,

Contextual Support Journal

GUIDE TO SOIL TEST INTERPRETATION

Preview of Salinity tolerance in irrigated crops - NSW Department of Primary Industries, accessed July 10, 2025,

Salinity tolerance in irrigated crops - NSW Department of Primary Industries, accessed July 10, 2025,

Contextual Support

Salinity tolerance in irrigated crops - NSW Department of Primary Industries, accessed July 10, 2025

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

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

Contextual Support Journal

Regenerative Agriculture - NSW Department of Primary Industries

Preview of Soil Salinity - Land degradation in Australia, accessed July 10, 2025,

Soil Salinity - Land degradation in Australia, accessed July 10, 2025,

Contextual Support Journal

Soil Salinity - Land degradation in Australia, accessed July 10, 2025

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

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

Preview of The Effect of Soil Texture on the Conversion Factor of 1:5 Soil/Water ..., accessed July 10, 2025,

The Effect of Soil Texture on the Conversion Factor of 1:5 Soil/Water ..., accessed July 10, 2025,

Methodology Source

The Effect of Soil Texture on the Conversion Factor of 1:5 Soil/Water ..., accessed July 10, 2025

Preview of Understanding soil tests for pastures | Soil | Farm management ..., accessed July 10, 2025,

Understanding soil tests for pastures | Soil | Farm management ..., accessed July 10, 2025,

Contextual Support GreyLiterature

Understanding soil tests for pastures | Soil | Farm management ..., accessed July 10, 2025

Preview of What can electrical conductivity tell us about our soil? - Trace and Save, accessed July 10, 2025,

What can electrical conductivity tell us about our soil? - Trace and Save, accessed July 10, 2025,

Methodology Source Journal

What can electrical conductivity tell us about our soil? - Trace and Save, accessed July 10, 2025

Preview of Why measure Electrical Conductivity (EC) in soil? - SoilSense, accessed July 9, 2025,

Why measure Electrical Conductivity (EC) in soil? - SoilSense, accessed July 9, 2025,

Contextual Support GreyLiterature

Why measure Electrical Conductivity (EC) in soil? - SoilSense, accessed July 10, 2025

Preview of Woodland Remnants and Dryland Salinity - Environment and Heritage, accessed August 9, 2025

Woodland Remnants and Dryland Salinity - Environment and Heritage, accessed August 9, 2025

Contextual Support

(PDF) Effects of salinisation on riparian plant communities in ..., accessed July 10, 2025

Preview of World salinization with emphasis on Australia | Journal of Experimental Botany, accessed July 10, 2025,

World salinization with emphasis on Australia | Journal of Experimental Botany, accessed July 10, 2025,

Contextual Support Journal

World salinization with emphasis on Australia | Journal of Experimental Botany, accessed July 10, 2025

Preview of www.barrierreef.org, accessed on May 25, 2025,

www.barrierreef.org, accessed on May 25, 2025,

Contextual Support Journal

Regenerative Agriculture Program restoring soil pH case study: Macdonald, Whites Flat/Koppio, accessed July 18, 2025,

Context

Region Australia
Biome Temperate Semi-Arid Shrublands & Open Woodlands
Land Use Livestock Grazing & Pasture
Assessment Not Stated
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 7 Jun 2026

Notes

Lower Critical Threshold: 0.15 dS/m. Upper Detrimental Threshold: 2 dS/m. The benchmark reflects a low EC value indicative of a healthy state where salinization is prevented. Values above 2 dS/m indicate salinity stress and ecological degradation. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.