Soil Moisture

AUS-ASC-FOR-SMO General Low confidence

Benchmark Value

27 % VWC
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.

Evidence & Context

Based on available research, a soil moisture level of greater than 27% Volumetric Water Content (VWC) in the root zone is proposed as a benchmark for Eucalyptus delegatensis dominated subalpine production forests on granitic-derived soils, representative of conditions at the TERN OzFlux Tumbarumba site.

Metric Definition:

Soil moisture level in the root zone measured as Volumetric Water Content (VWC)

Benchmark Definition:

This benchmark represents the minimum soil moisture level in the root zone, measured as Volumetric Water Content, necessary to support optimal physiological function and resilience of Eucalyptus delegatensis in subalpine production forests on granitic soils.

Justification:

This threshold is associated with non-limiting stomatal conductance, indicating optimal physiological function and plant resilience for this key commercial species.

Sources (1)

Preview of Linking leaf and tree water use with an individual-tree model. (Leuning et al., 2007, Tree Physiology)
Linking leaf and tree water use with an individual-tree model. (Leuning et al., 2007, Tree Physiology) Journal

Linking leaf and tree water use with an individual-tree model. (Leuning et al., 2007, Tree Physiology)

View Source

Supporting Sources (26)

Additional references from the underlying research that informed this benchmark.

Preview of Alpine Ash (Eucalyptus Delegatensis) Plant Care & How to Grow, Water - Plantiary, accessed May 27, 2025
Alpine Ash (Eucalyptus Delegatensis) Plant Care & How to Grow, Water - Plantiary, accessed May 27, 2025
Contextual Support GreyLiterature

Alpine Ash (Eucalyptus Delegatensis) Plant Care & How to Grow, Water - Plantiary, accessed May 27, 2025

View Source
Preview of Canopy structure modulates the sensitivity of subalpine forest stands to interannual snowpack and precipitation variability - HESS - Recent, accessed on May 28, 2025
Canopy structure modulates the sensitivity of subalpine forest stands to interannual snowpack and precipitation variability - HESS - Recent, accessed on May 28, 2025
Contextual Support Journal

Alpine soils in Australia with reference to conditions in Europe and New Zealand, accessed May 27, 2025

View Source
Preview of Carbon and water fluxes over a temperate Eucalyptus forest and a ..., accessed May 27, 2025
Carbon and water fluxes over a temperate Eucalyptus forest and a ..., accessed May 27, 2025
Contextual Support Journal

Carbon and water fluxes over a temperate Eucalyptus forest and a ..., accessed May 27, 2025

View Source
Preview of Carbon and water fluxes over a temperate Eucalyptus forest and a tropical wet/dry savanna in Australia: Measurements and comparison with MODIS remote sensing estimates - ResearchGate, accessed March 28, 2026,
Carbon and water fluxes over a temperate Eucalyptus forest and a tropical wet/dry savanna in Australia: Measurements and comparison with MODIS remote sensing estimates - ResearchGate, accessed March 28, 2026,
Contextual Support Government

Multi-decadal increase of forest burned area in Australia is linked to climate change, accessed May 27, 2025

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 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 Global variations in critical drought thresholds that impact vegetation - Oxford Academic
Global variations in critical drought thresholds that impact vegetation - Oxford Academic
Contextual Support Journal

Alpine shrub leaf litter decomposition across mountain summits in south‐eastern Australia, accessed May 27, 2025

View Source
Preview of Guidelines for the removal, destruction or lopping of native vegetation - Environment
Guidelines for the removal, destruction or lopping of native vegetation - Environment
Contextual Support Journal

Native Vegetation Integrity Benchmarks - Environment and Heritage, accessed April 6, 2026

View Source
Preview of Improved forest management - CSIRO, accessed July 12, 2025,
Improved forest management - CSIRO, accessed July 12, 2025,
Contextual Support Government

Ecosystem wicks: Woodland trees enhance water infiltration in a fragmented agricultural landscape in eastern Australia, accessed May 15, 2025,

View Source
Preview of Keeping tabs on native woodlands in times of flood and drought - ScienceDaily, accessed May 15, 2025,
Keeping tabs on native woodlands in times of flood and drought - ScienceDaily, accessed May 15, 2025,
Contextual Support GreyLiterature

Keeping tabs on native woodlands in times of flood and drought - ScienceDaily

View Source
Preview of Managing harvesting residues: a systematic review of management treatments around the world | Forestry: An International Journal of Forest Research | Oxford Academic
Managing harvesting residues: a systematic review of management treatments around the world | Forestry: An International Journal of Forest Research | Oxford Academic
Contextual Support Journal

Managing harvesting residues: a systematic review of management treatments around the world | Forestry: An International Journal of Forest Research | Oxford Academic, accessed May 27, 2025

View Source
Preview of Mapping near-real-time soil moisture dynamics over Tasmania with transfer learning
Mapping near-real-time soil moisture dynamics over Tasmania with transfer learning
Contextual Support Journal

ACT Regional Drought Resilience Plan - DAFF

View Source
Preview of Monitoring and forecasting drought through the assimilation of satellite water observations Siyuan Tian - ANU Open Research
Monitoring and forecasting drought through the assimilation of satellite water observations Siyuan Tian - ANU Open Research
Contextual Support Government

Monitoring and forecasting drought through the assimilation of satellite water observations Siyuan Tian - ANU Open Research, accessed May 27, 2025

View Source
Preview of Mortality of Australian alpine grasses (Poa spp.) after drought: species differences and ecological patterns - Oxford Academic
Mortality of Australian alpine grasses (Poa spp.) after drought: species differences and ecological patterns - Oxford Academic
Contextual Support Direct Evidence Journal

Mortality of Australian alpine grasses (Poa spp.) after drought: species differences and ecological patterns - Oxford Academic

View Source
Preview of nora.nerc.ac.uk, accessed May 27, 2025
nora.nerc.ac.uk, accessed May 27, 2025
Contextual Support Journal

nora.nerc.ac.uk, accessed May 27, 2025

View Source
Preview of NSW National Parks and Wildlife Service. (n.d.). The Australian Alps Bioregion.
NSW National Parks and Wildlife Service. (n.d.). The Australian Alps Bioregion.
Methodology Source Journal

Australian Alps Montane Grasslands | One Earth, accessed May 11, 2026,

View Source
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

View Source
Preview of Snow, fire and drought: how alpine and treeline soil seed banks are affected by simulated climate change - PubMed Central, accessed May 27, 2025
Snow, fire and drought: how alpine and treeline soil seed banks are affected by simulated climate change - PubMed Central, accessed May 27, 2025
Contextual Support Journal

Two decades of OzFlux - FLUXNET, accessed May 27, 2025

View Source
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
Contextual Support Journal

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

View Source
Preview of Soil moisture at Boorowa Agricultural Research Station - CSIRO
Soil moisture at Boorowa Agricultural Research Station - CSIRO
Contextual Support Government

Soil moisture at Boorowa Agricultural Research Station - CSIRO, accessed May 27, 2025

View Source
Preview of Sustainable Forestry – Protecting Australia's Forest Dwelling Wildlife, accessed July 12, 2025,
Sustainable Forestry – Protecting Australia's Forest Dwelling Wildlife, accessed July 12, 2025,
Contextual Support GreyLiterature

SFI 2015-2019 STANDARDS AND RULES - Sustainable Forestry Initiative, accessed on May 27, 2025

View Source
Preview of Sustainable Forestry – Protecting Australia's Forest Dwelling Wildlife, accessed on May 27, 2025,
Sustainable Forestry – Protecting Australia's Forest Dwelling Wildlife, accessed on May 27, 2025,
Contextual Support Journal

www.forestry.org.au

View Source
Preview of TERN 2023 SCIENCE SYMPOSIUM - Terrestrial Ecosystem Research Network
TERN 2023 SCIENCE SYMPOSIUM - Terrestrial Ecosystem Research Network
Contextual Support Journal

TERN Australian SuperSite Network - Research Data Australia

View Source
Preview of TERN. TERN – Australia's Ecosystem Observatory Network, highlights for 2018-2023.
TERN. TERN – Australia's Ecosystem Observatory Network, highlights for 2018-2023.
Contextual Support Government

Daintree Rainforest, Cape Tribulation BASE Contextual, Soil ..., accessed July 20, 2025

View Source
Preview of Tumbarumba Flux Data Collection - TERN Data Discovery Portal, accessed August 9, 2025
Tumbarumba Flux Data Collection - TERN Data Discovery Portal, accessed August 9, 2025
Contextual Support Direct Evidence Government

Tumbarumba Flux Data Collection - TERN Data Discovery Portal, accessed May 27, 2025

View Source
Preview of Tumbarumba OzFlux tower site - Research Data Australia
Tumbarumba OzFlux tower site - Research Data Australia
Contextual Support Direct Evidence

Collections - Tumbarumba OzFlux tower site, accessed May 27, 2025

View Source
Preview of vegetation | Australian Alps National Parks, accessed May 27, 2025
vegetation | Australian Alps National Parks, accessed May 27, 2025
Contextual Support GreyLiterature

vegetation | Australian Alps National Parks, accessed May 27, 2025

View Source

Context

  • Region Australia
  • Biome Alpine and Subalpine Complex
  • Land Use Production Forestry
  • Assessment Conservation Target
  • Vegetation Forest
  • Evidence Type ReferenceCondition

Lifecycle

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

Notes

No upper detrimental threshold — higher values are always better up to natural saturation. Represents a 'best-on-offer' condition where water availability does not constrain primary productivity. The value is derived from the Tumbarumba OzFlux site, a long-term managed Eucalyptus delegatensis production forest.

Related Benchmarks

Other benchmarks in the AUS-ASC-FOR-SMO family.

14 % VWC Low
Production Forestry ยท Pristine Reference
Point Active v1