Soil Moisture — Benchmark Detail

Benchmark Value

No specific value — see range

Direction: Lower 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.

Contributing Benchmarks

CompositeFramework Primary OptimalRange Guard OptimalRange Guard LowerThreshold Guard OptimalRange Guard CompositeFramework Guard Point Guard

Evidence & Context

Prolonged saturation ('Proportion Full' ≈ 1.0) becomes detrimental, especially for drought-stressed trees (after >60-90 days) and seedlings (after >6 weeks), leading to anoxic stress and potential mortality.

Metric Definition:

Duration of saturation at 'Proportion Full' ≈ 1.0 beyond physiological tolerance causing detrimental effects.

Benchmark Definition:

Upper detrimental threshold defined by duration of saturation causing anoxic stress and mortality.

Justification:

Duration thresholds vary by tree age and health; mature trees tolerate 60-90 days, seedlings about 6 weeks.

Sources (1)

Preview of Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray–Darling Basin, Australia – implications for the management of environmental flows

Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray–Darling Basin, Australia – implications for the management of environmental flows Journal

Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray–Darling Basin, Australia – implications for the management of environmental flows

View Source

Supporting Sources (1)

Additional references from the underlying research that informed this benchmark.

Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC

Contextual Support Government

(PDF) Ecological response of Eucalyptus camaldulensis (river red ..., accessed July 19, 2025

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Context

Region Australia
Biome Arid Inland Floodplains & Ephemeral River Systems
Land Use Production Forestry
Assessment Pristine Reference
Evidence Type DegradationThreshold

Lifecycle

Status Active
Version 1
Effective From 22 Mar 2026

Notes

Management must avoid prolonged artificial inundation and consider pre-existing drought stress.

Related Benchmarks

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