Soil Moisture

AUS-ASC-CON-SMO General High confidence

Benchmark Value

110 % GWC
Direction: Higher is desirable ↑
Form: MinimumOnly

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.

Evidence & Context

Maintaining soil moisture above 110% (gravimetric) is considered the regulatory and management benchmark for preventing peat ignition

Metric Definition:

Oven-dried weight (ODW) moisture content percentage

Benchmark Definition:

This benchmark sets the minimum soil moisture level required to prevent peat ignition in organic soils within conservation areas.

Justification:

Critical management threshold to prevent smouldering combustion.

Sources (1)

Preview of Moisture thresholds for combustion of organic soils
Moisture thresholds for combustion of organic soils Journal

Prior, L. D., et al. (2020). "Soil moisture thresholds for combustion of organic soils in western Tasmania." International Journal of Wildland Fire.

View Source

Supporting Sources (31)

Additional references from the underlying research that informed this benchmark.

Preview of Australian alpine plant research, conservation and management, accessed May 13, 2026,
Australian alpine plant research, conservation and management, accessed May 13, 2026,
Direct Evidence Journal

Australian alpine plant research, conservation and management, accessed May 13, 2026,

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Preview of Australian Alps Montane Grasslands | One Earth, accessed May 13, 2026,
Australian Alps Montane Grasslands | One Earth, accessed May 13, 2026,
Direct Evidence Journal

National Parks Act Annual Report 2023 624 - Parliament of Victoria, accessed May 13, 2026,

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Preview of Australian Alps Montane Grasslands | One Earth, accessed on May 28, 2025
Australian Alps Montane Grasslands | One Earth, accessed on May 28, 2025
Contextual Support GreyLiterature

Long-term Vegetation Change in Relation to Cattle ... - DCCEEW, accessed May 11, 2026,

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Preview of C1.1 Water table - ArcGIS StoryMaps, accessed May 13, 2026,
C1.1 Water table - ArcGIS StoryMaps, accessed May 13, 2026,
Contextual Support GreyLiterature

C1.1 Water table - ArcGIS StoryMaps, accessed May 13, 2026,

View Source
Preview of Carbon and Nitrogen Dynamics in Alpine Soils
Carbon and Nitrogen Dynamics in Alpine Soils
Direct Evidence Journal

Carbon and Nitrogen Dynamics in Alpine Soils

View Source
Preview of Caring for our Australian Alps Catchments, accessed August 28, 2025,
Caring for our Australian Alps Catchments, accessed August 28, 2025,
Contextual Support Direct Evidence Journal

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

View Source
Preview of Caring for our Australian Alps Catchments, accessed May 13, 2026,
Caring for our Australian Alps Catchments, accessed May 13, 2026,
Direct Evidence Journal

Caring for our Australian Alps Catchments, accessed May 13, 2026,

View Source
Preview of Department of Climate Change and Energy Efficiency (2011). "Caring for our Australian Alps Catchments: A Climate Change Action Strategy for the Australian Alps." 6
Department of Climate Change and Energy Efficiency (2011). "Caring for our Australian Alps Catchments: A Climate Change Action Strategy for the Australian Alps." 6
Contextual Support Direct Evidence Journal

Department of Climate Change and Energy Efficiency (2011). "Caring for our Australian Alps Catchments: A Climate Change Action Strategy for the Australian Alps."

View Source
Preview of Disproportionate CH4 Sink Strength from an Endemic, Sub-Alpine ..., accessed August 28, 2025,
Disproportionate CH4 Sink Strength from an Endemic, Sub-Alpine ..., accessed August 28, 2025,
Contextual Support Direct Evidence Journal

Parra, J. G., et al. 2021. Soil microbial community composition and links to greenhouse gas fluxes in an Australian sub-alpine ecosystem.

View Source
Preview of Distribution, nature and threats to soils of the Australian Alps: A review - ResearchGate, accessed August 28, 2025,
Distribution, nature and threats to soils of the Australian Alps: A review - ResearchGate, accessed August 28, 2025,
Contextual Support GreyLiterature

REPORT ON THE INVESTIGATION INTO THE FUTURE OF CATTLE GRAZING IN THE ALPINE NATIONAL PARK

View Source
Preview of For peat's sake! Peat type influences critical moisture thresholds that prevent combustion of organic soils in Western Australia - ConnectSci, accessed May 13, 2026,
For peat's sake! Peat type influences critical moisture thresholds that prevent combustion of organic soils in Western Australia - ConnectSci, accessed May 13, 2026,
Direct Evidence Journal

Soil moisture thresholds for combustion of organic soils in western Tasmania | Request PDF, accessed May 13, 2026,

View Source
Preview of Full article: A complex patterned-ground ecosystem in the Sierra Nevada, California, USA supports unusual habitat for American pika - Taylor & Francis, accessed May 13, 2026,
Full article: A complex patterned-ground ecosystem in the Sierra Nevada, California, USA supports unusual habitat for American pika - Taylor & Francis, accessed May 13, 2026,
Contextual Support Journal

Full article: A complex patterned-ground ecosystem in the Sierra Nevada, California, USA supports unusual habitat for American pika - Taylor & Francis, accessed May 13, 2026,

View Source
Preview of Ignition probability of organic soils - ResearchGate, accessed May 13, 2026,
Ignition probability of organic soils - ResearchGate, accessed May 13, 2026,
Contextual Support GreyLiterature

Ignition probability of organic soils - ResearchGate, accessed May 13, 2026,

View Source
Preview of Impacts of Nature Tourism on the Mount Kosciuszko Alpine Area ..., accessed May 28, 2025
Impacts of Nature Tourism on the Mount Kosciuszko Alpine Area ..., accessed May 28, 2025
Contextual Support GreyLiterature

water catchment | Australian Alps National Parks, accessed May 13, 2026,

View Source
Preview of Impacts of Nature Tourism on the Mount Kosciuszko Alpine Area, Australia - CABI Digital Library, accessed May 13, 2026,
Impacts of Nature Tourism on the Mount Kosciuszko Alpine Area, Australia - CABI Digital Library, accessed May 13, 2026,
Direct Evidence Journal

AUSTRALIAN NATIVE VEGETATION ASSESSMENT 2001 - Inside Cotton, accessed April 6, 2026

View Source
Preview of NSW Biodiversity Conservation Trust. (2021). Do you want to earn annual payments for conserving rare vegetation in the Southern Tablelands? Snow Gum Woodlands and Grasslands Conservation Tender. Factsheet.
NSW Biodiversity Conservation Trust. (2021). Do you want to earn annual payments for conserving rare vegetation in the Southern Tablelands? Snow Gum Woodlands and Grasslands Conservation Tender. Factsheet.
Contextual Support GreyLiterature

Long-unburnt stands of snow gum (Eucalyptus pauciflora Sieber ex Spreng) are exceedingly rare in the Victorian Alps: implications for their conservation and management - ResearchGate

View Source
Preview of Plant ecology at high elevations | Request PDF - ResearchGate, accessed May 13, 2026,
Plant ecology at high elevations | Request PDF - ResearchGate, accessed May 13, 2026,
Contextual Support GreyLiterature

Plant ecology at high elevations | Request PDF - ResearchGate, accessed May 13, 2026,

View Source
Preview of Prior, L. D., et al. (2024). "When soil becomes fuel: identifying a safe window for prescribed burning."() 22
Prior, L. D., et al. (2024). "When soil becomes fuel: identifying a safe window for prescribed burning."() 22
Contextual Support Direct Evidence GreyLiterature

Prior, L. D., et al. (2024). "When soil becomes fuel: identifying a safe window for prescribed burning."() 22

View Source
Preview of Private Forests Tasmania (2021). Management of Natural regeneration in eucalypt plantations.
Private Forests Tasmania (2021). Management of Natural regeneration in eucalypt plantations.
Direct Evidence Journal

Private Forests Tasmania (2021). Management of Natural regeneration in eucalypt plantations.

View Source
Preview of Seasonal indicators as key descriptors of water deficit in Sphagnum farming systems
Seasonal indicators as key descriptors of water deficit in Sphagnum farming systems
Contextual Support Direct Evidence Journal

Zhu, B., et al. (2022). "Seasonal indicators as key descriptors of water deficit in Sphagnum farming systems." Mires and Peat, 28.

View Source
Preview of Seasonal indicators as key descriptors of water deficit in Sphagnum farming systems - Mires and Peat, accessed May 13, 2026,
Seasonal indicators as key descriptors of water deficit in Sphagnum farming systems - Mires and Peat, accessed May 13, 2026,
Direct Evidence Journal

AUSTRALIAN, accessed May 13, 2026,

View Source
Preview of Silvicultural systems for native eucalypt forests - Sustainable Timber Tasmania, accessed April 1, 2026,
Silvicultural systems for native eucalypt forests - Sustainable Timber Tasmania, accessed April 1, 2026,
Contextual Support GreyLiterature

When soil becomes fuel identifying a safe window for prescribed burning of Tasmanian vegetation growing on organic soils - Amazon S3, accessed May 13, 2026,

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Preview of SNOWY MOUNTAIN FORESTED HILLSLOPE SOIL CHARACTERISATION, SOIL HYDROLOGICAL PROPERTIES AND SOIL GEOCHEMISTRY PROGRAM
SNOWY MOUNTAIN FORESTED HILLSLOPE SOIL CHARACTERISATION, SOIL HYDROLOGICAL PROPERTIES AND SOIL GEOCHEMISTRY PROGRAM
Direct Evidence Journal

Rainfall infiltration and soil hydrological characteristics below ancient forest, planted forest and grassland in a temperate northern climate

View Source
Preview of Snowy Mountains Snowbed Vegetation Study
Snowy Mountains Snowbed Vegetation Study
Contextual Support Direct Evidence GreyLiterature

Snowy Mountains Snowbed Vegetation Study

View Source
Preview of Soil warming during winter period enhanced soil N and P availability and leaching in alpine grasslands: A transplant study - PMC, accessed March 28, 2026,
Soil warming during winter period enhanced soil N and P availability and leaching in alpine grasslands: A transplant study - PMC, accessed March 28, 2026,
Contextual Support Direct Evidence Journal

Johnston, 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 Source
Preview of TERN partners with newly launched Australian Mountain Research Facility, accessed August 5, 2025
TERN partners with newly launched Australian Mountain Research Facility, accessed August 5, 2025
Contextual Support Government

TERN partners with newly launched Australian Mountain Research Facility, accessed August 5, 2025

View Source
Preview of The Australian Alps rehabilitation manual
The Australian Alps rehabilitation manual
Direct Evidence Journal

Invasive Species Research - Research Centre for Applied Alpine Ecology

View Source
Preview of Understanding Ecohydrological and Biogeochemical Processes in an Australian Alpine Sphagnum Peatland and Implications for Manage - RMIT Research Repository., accessed May 13, 2026,
Understanding Ecohydrological and Biogeochemical Processes in an Australian Alpine Sphagnum Peatland and Implications for Manage - RMIT Research Repository., accessed May 13, 2026,
Contextual Support GreyLiterature

Understanding ecohydrological and biogeochemical processes in an Australian alpine sphagnum peatland and implications for management under a changing climate - RMIT University, accessed May 13, 2026,

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Preview of Vegetation, microclimate and soils associated with the latest-lying snowpatches in Australia - Griffith Research Online, accessed May 13, 2026,
Vegetation, microclimate and soils associated with the latest-lying snowpatches in Australia - Griffith Research Online, accessed May 13, 2026,
Direct Evidence

Vegetation, microclimate and soils associated with the latest-lying snowpatches in Australia - Griffith Research Online, accessed May 13, 2026,

View Source
Preview of Venn, S. E., et al. (2012). "Tree-Limit Ribbons in the Snowy Mountains, Australia: Characterization and Recent Seedling Establishment." Arctic, Antarctic, and Alpine Research, 44(2), 180–191. 34
Venn, S. E., et al. (2012). "Tree-Limit Ribbons in the Snowy Mountains, Australia: Characterization and Recent Seedling Establishment." Arctic, Antarctic, and Alpine Research, 44(2), 180–191. 34
Contextual Support Direct Evidence

Venn, S. E., et al. (2012). "Tree-Limit Ribbons in the Snowy Mountains, Australia: Characterization and Recent Seedling Establishment." Arctic, Antarctic, and Alpine Research, 44(2), 180–191.

View Source
Preview of When soil becomes fuel: identifying a safe window for prescribed burning of Tasmanian vegetation growing on organic - UTAS Research Repository, accessed May 13, 2026,
When soil becomes fuel: identifying a safe window for prescribed burning of Tasmanian vegetation growing on organic - UTAS Research Repository, accessed May 13, 2026,
Direct Evidence

When soil becomes fuel: identifying a safe window for prescribed burning of Tasmanian vegetation growing on organic - UTAS Research Repository, accessed May 13, 2026,

View Source

Context

  • Region Australia
  • Biome Alpine and Subalpine Complex
  • Land Use Conservation / Protected Natural Areas
  • Assessment Not Stated
  • Evidence Type RegulatoryTrigger

Lifecycle

  • Status Active
  • Version 1
  • Effective From 26 May 2026

Notes

Target for ensuring that organic soils are non-combustible during fire events. AssessmentContext defaulted to 'Not Stated' because the source document did not state one. Unit confirmed as % GWC (Gravimetric Water Content) by operator 2026-06-08. Peat bulk density is very low — water mass can exceed dry soil mass, making GWC > 100% physically valid. VWC and REW do not capture peat combustion risk thresholds. Value of 110% GWC = minimum moisture for fire resistance in peat. Unit confirmed as % GWC (Gravimetric Water Content) by operator 2026-06-08. Peat bulk density is very low — water mass can exceed dry soil mass, making GWC > 100% physically valid. VWC and REW do not capture peat combustion risk thresholds. Value of 110% GWC = minimum moisture for fire resistance in peat.