Soil Electrical Conductivity (EC)
Benchmark Value
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.
Evidence & Context
an EC value of "more than 1 dS/m" in the presence of high nitrates has been shown to increase the production of nitrous oxide gas by "more than 15 to 315 times" under anaerobic conditions, signifying a loss of the soil's atmospheric regulation function.
Soil electrical conductivity (EC).
This benchmark marks the upper threshold of soil electrical conductivity beyond which soil microbial processes and greenhouse gas emissions are adversely affected.
Established boundary where salinity begins to affect soil microbial processes and greenhouse gas emissions.
Sources (1)
Parra, J. G., et al. 2021. Soil microbial community composition and links to greenhouse gas fluxes in an Australian sub-alpine ecosystem.
View SourceSupporting Sources (58)
Additional references from the underlying research that informed this benchmark.
Project title: Assessing the impacts of Snomax®, an ice-nucleating bacterium for creating artificial snow, on the Australian Al - Macquarie University, accessed March 28, 2026,
View Source(PDF) Potential Effects of Global Warming on the Biota of the Australian Alps, accessed March 28, 2026,
View SourceSoil Salinity Variations and Associated Implications for Agriculture and Land Resources Development Using Remote Sensing Dataset - Semantic Scholar, accessed March 28, 2026,
View SourceSalinity in Calcarosols occurs through the presence of sodium, chloride, bicarbonate and sulfate ions, is caused by sodicity, and leads to decreased osmotic potential - CSIRO Publishing, accessed March 28, 2026,
View SourceASRIS Soil Data Web API, accessed March 28, 2026,
View SourceTemperate forests and soils [Chapter 6]
View SourceChange in Organic Carbon in Forest Plantation Soils in Eastern ..., accessed July 20, 2025,
View SourceFrom guiding principles for the conservation of forest biodiversity to on-ground practice: Lessons from tree hollow management in Tasmania | Request PDF - ResearchGate, accessed March 28, 2026,
View SourceSoil Inorganic Carbon, the Other and Equally Important Soil Carbon Pool: Distribution, Controlling Factors, and the Impact of C
View SourceMulti-decadal increase of forest burned area in Australia is linked to climate change, accessed May 27, 2025
View SourceSave Our Soils - Soil Science Australia
View SourceComparing traditional and digital soil mapping at a district scale using residual maximum likelihood analysis - CSIRO Publishing, accessed March 28, 2026,
View SourceDynamics of carbon exchange in a Eucalyptus forest in response to interacting disturbance factors | Request PDF - ResearchGate, accessed March 28, 2026,
View SourceEcosystem Health - Top of the South Scorecards Freshwater & Terrestrial Ecosystems - The Nature Conservancy, accessed March 28, 2026,
View SourceMeasuring soil salinity - DPIRD's Digital library, accessed March 28, 2026,
View SourceEllis, R. C., and P. I. Pennington. 1989. The severity of the eucalypt dieback in high altitude Eucalyptus delegatensis forests.
View Sourcewww.nrc.nsw.gov.au, accessed on May 27, 2025
View SourceEmpirical estimation of saturated soil-paste electrical conductivity in the EU using pedotransfer functions and Quantile Regression Forest, accessed March 28, 2026,
View SourceGlossary of Terms used in Soil and Landscape Science | Environment and Heritage, accessed March 28, 2026,
View SourceFilippi, P., et al. 2022. Mapping the impact of subsoil constraints on soil available water. Crop and Pasture Science 73(6).
View SourceThe Effects of Forest Gaps on the Physical and Ecological Stoichiometric Characteristics of Soil in Pinus densiflora Sieb. and Robinia pseudoacacia L. Forests - MDPI, accessed March 28, 2026,
View SourceInsights for NSW forest outcomes and management - Natural Resources Commission, accessed March 28, 2026,
View SourceJohnston, C. E., et al. 2003. A digital dataset of soils (ASRIS).
View SourceUnderstanding Ecohydrological and Biogeochemical Processes in ...
View SourceLeaf, tree and soil properties in a Eucalyptus saligna forest exhibiting canopy decline - Botanic Gardens of Sydney, accessed March 28, 2026,
View SourceMacDonald, R. 2024. Soil health and temperate rainforest conditions.
View SourceMacquarie University. 2024. Year 2 Progress Report: Impacts of Snomax® on the Australian Alpine Environment.
View SourceMapping the impact of subsoil constraints on soil available water capacity and potential crop yield - BioOne, accessed March 28, 2026,
View SourceInfluence of newly imposed salinity and waterlogging on Eucalyptus gracilis in South Australia, accessed March 28, 2026,
View SourceMethods - USDA ARS, accessed March 28, 2026,
View SourceNSW Department of Planning, Industry and Environment. 2021. Soil health and stability monitoring in forests.
View SourceWater infiltration rate as affected by grazing land management ...
View SourceTransfer of elements to the atmosphere during low-intensity prescribed fires in 3 Australian subalpine eucalypt forests - ResearchGate, accessed March 28, 2026,
View SourceSoil protection with logging residues during mechanised harvesting of native forests in Tasmania - ANU Open Research, accessed March 28, 2026,
View SourceMolecular bacterial diversity of a forest soil under residue management regimes in subtropical Australia | Request PDF - ResearchGate, accessed August 1, 2025
View SourceA strategy for dealing with invasive species in Australia
View SourceResource Recovery Order under Section 286A of the Protection of the Environment Operations Act 1997 The Eco Guardians rapidly dehydrated food waste order July 2024, accessed March 28, 2026,
View SourceSalinity Glovebox Guide Tasmania
View SourceKeith, H. (1997). Effects of soil phosphorus availability, temperature, and moisture on soil respiration in Eucalyptus pauciflora forest. Plant and Soil, 190(1), 121-141. []
View SourceSeverity of the eucalypt dieback in high altitude Eucalyptus delegatensis forests
View SourceLong-term Vegetation Changes on Alpine Summits in Response to Global Drivers of Change, accessed March 28, 2026,
View SourceRegenerative Agriculture - NSW Department of Primary Industries
View SourceAustralia's forests 2016. Australian Bureau of Agricultural and Resource Economics and Sciences (ABARES).
View SourceSoil electrical Conductivity Mapping - P2 InfoHouse, accessed March 28, 2026,
View SourceInvestigating Microtopographic and Soil Controls on a Mountainous Meadow Plant Community Using High‐Resolution Remote Sensing, accessed March 28, 2026,
View SourcePredictive Mapping of Electrical Conductivity and Assessment of Soil Salinity in a Western Türkiye Alluvial Plain - MDPI, accessed March 28, 2026,
View SourceSoil nitrogen dynamics in natural forest ecosystem: a review - Frontiers, accessed March 28, 2026,
View SourceManagement of Eucalyptus grandis seedlings
View SourceJohnston, S. W., et al. (2004). "Impacts of Road Disturbance on Soil Properties and on Exotic Plant Species in a Subalpine Environment." Arctic, Antarctic, and Alpine Research, 36(2), 201–212.
View SourceSustainable Timber Tasmania (STT). 2021. Annual report 2021.
View SourceTasmanian Government. 2009. Salinity Glovebox Guide Tasmania.
View SourceThe composition of organic phosphorus in soils of the Snowy Mountains region of south-eastern Australia - Semantic Scholar, accessed March 28, 2026,
View SourceTasmanian Regional Forest Agreement Outcomes Report 2017–2022 - Department of State Growth, accessed March 28, 2026,
View SourceComparison of Soil EC Values from Methods Based on 1:1 and 1:5 Soil to Water Ratios and ECe from Saturated Paste Extract Based Method - MDPI, accessed March 28, 2026,
View SourceAgriculture Victoria. (2025). Understanding soil tests for pastures. Farm Management.
View SourceTERN Soil and Landscape Facility. 2024. Soil Attribute Grids.
View Source1.1.5.2 Surface water quality | Bioregional Assessments
View Source