Soil Electrical Conductivity (EC)

AUS-AIF-AGR-SEC General Moderate confidence

Benchmark Value

4 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 2 benchmarks together — the MinimumOnly form drives the primary score, while 1 guard(s) constrain the result.

Contributing Benchmarks

MinimumOnly Primary MaximumOnly Guard

Evidence & Context

Soils with an ECe greater than 4 dS/m are generally classified as saline and can detrimentally impact crop production.

Metric Definition:

Electrical Conductivity of the Saturated Soil Paste Extract (ECe)

Benchmark Definition:

Soil electrical conductivity (ECe) above 4 dS/m in arid inland floodplains indicates salinity levels that can harm crop production.

Justification:

Values exceeding 4 dS/m lead to osmotic stress and specific ion toxicities, reducing crop yields.

Sources (28)

Preview of (PDF) Soil processes affecting crop production in salt-affected soils - ResearchGate
(PDF) Soil processes affecting crop production in salt-affected soils - ResearchGate Journal

Salinity in Dryland Agricultural Systems: Challenges and Opportunities - ResearchGate

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A review of the economics of regenerative agriculture in Western Australia - DPIRD's Digital library, accessed August 4, 2025 Journal

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About Soil - Soil Science Australia Journal

About Soil - Soil Science Australia

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Australian Soil Classification edition 3 - CALCAROSOLS Government

Monitoring changes in soil salinity and sodicity to depth, at a ...

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Categories - Electrical Conductivity - CSIRO Data Access Portal Government

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Categories - Electrical Conductivity - CSIRO Data Access Portal, accessed July 30, 2025 Government

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Categories - Electrical Conductivity - CSIRO Data Access Portal, accessed May 13, 2025, Government

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Preview of EC (Electrical Conductivity) | Geoprobe Systems®
EC (Electrical Conductivity) | Geoprobe Systems® GreyLiterature

ASC - VERTOSOLS - Soil Science Australia

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Preview of FGARA Digital Soil Mapping Output - Soil Generic Group - CSIRO Data Access Portal
FGARA Digital Soil Mapping Output - Soil Generic Group - CSIRO Data Access Portal Government

FGARA Digital Soil Mapping Output - Soil Generic Group - CSIRO Data Access Portal

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Preview of Influence of Soil Properties on Electrical Conductivity Under Humid Water Regimes
Influence of Soil Properties on Electrical Conductivity Under Humid Water Regimes

Influence of Soil Properties on Electrical Conductivity Under Humid Water Regimes

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Preview of Managing heavy clay soils of the Bland - NSW Department of Primary Industries
Managing heavy clay soils of the Bland - NSW Department of Primary Industries GreyLiterature

Managing heavy clay soils of the Bland - NSW Department of Primary Industries

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Managing soils - Department of Primary Industries and Regional Development Journal

Managing soils - Department of Primary Industries and Regional Development

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Preview of Managing soils - Department of Primary Industries and Regional Development, accessed August 12, 2025
Managing soils - Department of Primary Industries and Regional Development, accessed August 12, 2025 Government

Repairing gully erosion in Western Australia | Department of Primary ..., accessed July 17, 2025

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Preview of Nutrient Supply to Floodplains | EARTH 111: Water: Science and Society - Penn State
Nutrient Supply to Floodplains | EARTH 111: Water: Science and Society - Penn State Government

Nutrient Supply to Floodplains | EARTH 111: Water: Science and Society - Penn State

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Preview of Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health - MDPI, accessed August 5, 2025,
Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health - MDPI, accessed August 5, 2025, Journal

Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health - MDPI, accessed July 20, 2025,

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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, Journal

GUIDE TO SOIL TEST INTERPRETATION

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Preview of Soil condition | NSW State of the Environment, accessed August 10, 2025,
Soil condition | NSW State of the Environment, accessed August 10, 2025, Government

Analysing water sensitive urban design options - Australian Water Association

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Preview of Soil Electrical Conductivity - Natural Resources Conservation Service
Soil Electrical Conductivity - Natural Resources Conservation Service Journal

Soil Electrical Conductivity - Natural Resources Conservation Service

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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

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

Regenerative Agriculture - NSW Department of Primary Industries

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Preview of Soil Electrical Conductivity | South Dakota Soil Health Coalition
Soil Electrical Conductivity | South Dakota Soil Health Coalition Journal

Soil Electrical Conductivity | South Dakota Soil Health Coalition

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Preview of Soil electrical conductivity: The complete guide to measurements - METER Group
Soil electrical conductivity: The complete guide to measurements - METER Group Journal

Soil electrical conductivity: The complete guide to measurements - METER Group

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Preview of Soil Groups Explained - Soil Quality Knowledge Base
Soil Groups Explained - Soil Quality Knowledge Base Journal

Soil Groups Explained - Soil Quality Knowledge Base

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Preview of Soil Health - Electrical Conductivity (EC), accessed July 22, 2025
Soil Health - Electrical Conductivity (EC), accessed July 22, 2025 GreyLiterature

Salinity tolerance in irrigated crops - NSW Department of Primary ...

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Preview of Soil health tests & pricing - NSW Department of Primary Industries
Soil health tests & pricing - NSW Department of Primary Industries Government

Soil health tests & pricing - NSW Department of Primary Industries

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Preview of Soil management guides - NSW Department of Primary Industries
Soil management guides - NSW Department of Primary Industries GreyLiterature

Soil management guides - NSW Department of Primary Industries

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Preview of Soil processes affecting crop production in salt-affected soils
Soil processes affecting crop production in salt-affected soils GreyLiterature

Soil processes affecting crop production in salt-affected soils

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Preview of The Sweet Secret to Balancing Electrical Conductivity in Soil - YouTube
The Sweet Secret to Balancing Electrical Conductivity in Soil - YouTube GreyLiterature

The Sweet Secret to Balancing Electrical Conductivity in Soil - YouTube

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Context

  • Region Australia
  • Biome Arid Inland Floodplains & Ephemeral River Systems
  • Land Use Agricultural Crop Production
  • Assessment Agricultural Crop Production
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 7 Jun 2026

Notes

General threshold for salinity classification in Australian arid agricultural floodplains.

Related Benchmarks

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

— dS/m Moderate
Agricultural Crop Production · Agricultural Crop Production
OptimalRange Active v1
0 dS/m Moderate
Agricultural Crop Production · Agricultural Crop Production
MinimumOnly Active v1