Soil Moisture

AUS-TMS-LVG-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: There is no clear evidence for an absolute upper soil moisture level that is inherently detrimental to the natural ecological health of these seasonally wet-dry ecosystems, up to natural saturation points.

Metric Definition:

Upper detrimental soil moisture threshold related to soil saturation and grazing pressure

Benchmark Definition:

No fixed upper soil moisture threshold is inherently harmful; harm occurs conditionally when grazing on saturated soils causes physical damage.

Justification:

Literature suggests that damage occurs due to soil compaction and pugging under grazing pressure on saturated soils, not from moisture levels alone.

Sources (1)

Preview of Soil, plant and livestock interactions in Australian tropical ... - Brill
Soil, plant and livestock interactions in Australian tropical ... - Brill Journal

Soil, plant and livestock interactions in Australian tropical ... - Brill

View Source

Supporting Sources (3)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) Global critical soil moisture thresholds of plant water stress
(PDF) Global critical soil moisture thresholds of plant water stress
Methodology Source Government

Global critical soil moisture thresholds of plant water stress

View Source
Preview of (PDF) Review of soil water models with respect to savanna ...
(PDF) Review of soil water models with respect to savanna ...
Contextual Support GreyLiterature

Seasonal Patterns in Soil Moisture, Vapour Pressure Deficit, Tree Canopy Cover and Pre-dawn Water Potential in a Northern Australian Savanna, accessed May 16, 2025

View Source
Preview of Trends and variability of water balance components over a tropical savanna and Eucalyptus forest in Australia
Trends and variability of water balance components over a tropical savanna and Eucalyptus forest in Australia
Contextual Support Journal

Trends and variability of water balance components over a tropical savanna and Eucalyptus forest in Australia

View Source

Context

  • Region Australia
  • Biome Tropical Monsoonal Savannas
  • Land Use Livestock Grazing & Pasture
  • Assessment Not Stated
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 9 Jun 2026

Notes

No upper detrimental threshold — higher values are always better up to natural saturation. The primary detrimental upper threshold is dynamic and depends on soil texture, stocking density, and duration of saturation. Management practices such as wet season spelling are critical to avoid damage. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.