Soil Moisture

AUS-TSW-CON-SMO General Moderate confidence

Benchmark Value

No specific value — see range
Direction: Higher is desirable ↑
Form: CompositeFramework

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.

Evidence & Context

Upper Detrimental Threshold: Not a specific percentage, but a condition of prolonged saturation. The duplex soil structure at the reference site creates a risk of waterlogging after heavy rainfall, leading to anaerobic conditions that can be detrimental to root health and alter community composition.

Metric Definition:

Condition of prolonged soil saturation leading to detrimental anaerobic conditions

Benchmark Definition:

This benchmark describes the upper detrimental threshold as a condition of prolonged soil saturation that can cause anaerobic stress harmful to woodland root health.

Justification:

Prolonged saturation leads to anaerobic conditions, inhibiting root respiration and causing physiological stress or mortality in plant species not adapted to waterlogged conditions.

Sources (1)

Preview of Management of excess water in duplex soils - ResearchGate
Management of excess water in duplex soils - ResearchGate

Management of excess water in duplex soils - ResearchGate

View Source

Supporting Sources (2)

Additional references from the underlying research that informed this benchmark.

Preview of Great Western Woodlands SuperSite | Climate Change Impacts - TERN Australia, accessed July 10, 2025,
Great Western Woodlands SuperSite | Climate Change Impacts - TERN Australia, accessed July 10, 2025,
Direct Evidence Government

URBAN FOREST STRATEGY - Your Say South Perth, accessed July 13, 2025

View Source
Preview of Soil – the driver of carbon dioxide variability over Australia, accessed July 16, 2025,
Soil – the driver of carbon dioxide variability over Australia, accessed July 16, 2025,
Direct Evidence GreyLiterature

Wired woodlands signal stress as climate dries - CSIRO

View Source

Context

  • Region Australia
  • Biome Temperate Semi-Arid Shrublands & Open Woodlands
  • Land Use Conservation / Protected Natural Areas
  • Assessment Pristine Reference
  • Vegetation Woodland
  • Evidence Type DegradationThreshold

Lifecycle

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

Notes

This threshold is not a specific numeric value but a condition related to the duplex soil profile's hydrological dynamics.