Soil Electrical Conductivity (EC)

AUS-ASC-CON-SEC General Low confidence

Benchmark Value

0.04 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

The recommended benchmark for Soil Electrical Conductivity (EC measured as a 1:5 soil:water suspension) in Australian Alpine and Subalpine Protected Natural Areas, representing the best available natural condition, is 0.04 dS/m.

Metric Definition:

Soil Electrical Conductivity (EC) measured as a 1:5 soil:water suspension

Benchmark Definition:

This benchmark represents the natural soil electrical conductivity in Australian Alpine and Subalpine Protected Natural Areas, reflecting low ionic strength typical of minimally disturbed alpine soils.

Justification:

The value of 0.04 dS/m corresponds to the mean EC of Organosols in minimally disturbed, high-elevation alpine environments, reflecting naturally low ionic strength due to high precipitation, leaching, and organic matter accumulation.

Sources (1)

Preview of Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and topography

Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and topography

Supporting Sources (17)

Additional references from the underlying research that informed this benchmark.

Preview of Australia's protected areas - DCCEEW, accessed August 4, 2025,

Australia's protected areas - DCCEEW, accessed August 4, 2025,

Contextual Support Government

Collaborative Australian Protected Areas Database: protected area data - DCCEEW

Preview of Australian Heritage Database - DCCEEW, accessed on May 25, 2025,

Australian Heritage Database - DCCEEW, accessed on May 25, 2025,

Contextual Support Journal

Australian Heritage Database - DCCEEW

Preview of Australian Subalpine Soil Invertebrate Diversity and Abundance Under Simulated Drought - ANU Student Journals

Australian Subalpine Soil Invertebrate Diversity and Abundance Under Simulated Drought - ANU Student Journals

Contextual Support Journal

Kirkpatrick, J. B., Bridle, K., & Wild, A. S. (2014). Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and topography. CATENA, 121, 186-194.

Preview of Caring for our Australian Alps Catchments, accessed August 28, 2025,

Caring for our Australian Alps Catchments, accessed August 28, 2025,

Contextual Support Journal

Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and t, accessed May 27, 2025

Preview of Conservation in Australia: Definition, Issues, and Legal Framework - Access EP

Conservation in Australia: Definition, Issues, and Legal Framework - Access EP

Contextual Support GreyLiterature

Caring for our Australian Alps Catchments, accessed May 28, 2025

Preview of Electrical Conductivity - Soil Health Nexus

Electrical Conductivity - Soil Health Nexus

Contextual Support GreyLiterature

Electrical Conductivity - Soil Health Nexus

Preview of Ionic regulation in an alpine peatland in the Bogong High Plains ...

Ionic regulation in an alpine peatland in the Bogong High Plains ...

Contextual Support Journal

Ionic regulation in an alpine peatland in the Bogong High Plains ...

Preview of Ionic regulation in an alpine peatland in the Bogong High Plains ..., accessed May 28, 2025

Ionic regulation in an alpine peatland in the Bogong High Plains ..., accessed May 28, 2025

Contextual Support Journal

Kirkpatrick et al. (2014)

Preview of openresearch-repository.anu.edu.au, accessed on May 31, 2025

openresearch-repository.anu.edu.au, accessed on May 31, 2025

Direct Evidence Journal

openresearch-repository.anu.edu.au, accessed on May 31, 2025,

Preview of Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and t

Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and t

Direct Evidence Journal

Patterns of variation in Australian alpine soils

Preview of Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and topography | Request PDF - ResearchGate, accessed August 3, 2025,

Patterns of variation in Australian alpine soils and their relationships to parent material, vegetation formation, climate and topography | Request PDF - ResearchGate, accessed August 3, 2025,

Direct Evidence Journal

Water infiltration rate as affected by grazing land management ...

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 The impact of climate change and wildfire on decadal alpine vegetation dynamics, accessed on May 25, 2025,

The impact of climate change and wildfire on decadal alpine vegetation dynamics, accessed on May 25, 2025,

Contextual Support Journal

Alpine Ash forests of mainland Australia - Victorian National Parks Association

Preview of The impact of climate change and wildfire on decadal alpine vegetation dynamics, accessed on May 28, 2025,

The impact of climate change and wildfire on decadal alpine vegetation dynamics, accessed on May 28, 2025,

Contextual Support Journal

www.dcceew.gov.au, accessed May 28, 2025

Preview of theaustralianalpsnationalparks.org, accessed on May 25, 2025,

theaustralianalpsnationalparks.org, accessed on May 25, 2025,

Contextual Support Journal

Phosphorus Nutrition of Proteaceae in Severely Phosphorus-Impoverished Soils: Are There Lessons To Be Learned for Future Crops? - PubMed Central

Preview of theaustralianalpsnationalparks.org, accessed on May 29, 2025,

theaustralianalpsnationalparks.org, accessed on May 29, 2025,

Contextual Support Journal

Soil Conservation in Alpine Catchments - The Kosciuszko Huts Association, accessed August 17, 2025,

Preview of www.environment.nsw.gov.au, accessed on May 25, 2025,

www.environment.nsw.gov.au, accessed on May 25, 2025,

Contextual Support

The Australian Alps Bioregion - Environment and Heritage, accessed on May 27, 2025,

Context

Region Australia
Biome Alpine and Subalpine Complex
Land Use Conservation / Protected Natural Areas
Assessment Pristine Reference
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 3 Jun 2026

Notes

Lower Critical Threshold: 0.02 dS/m. Upper Detrimental Threshold: 0.5 dS/m. The optimal range is 0.03 to 0.10 dS/m, representing natural ionic balance in healthy alpine soils.