Litter Cover

AUS-TSR-FOR-LIT General Moderate confidence

Benchmark Value

40 %
Thresholds: Lower: 40, Upper: —
Direction: Higher is desirable ↑
Form: LowerThreshold

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 17 benchmarks together — the OptimalRange form drives the primary score, while 16 guard(s) constrain the result.

Evidence & Context

Based on this converging evidence, a lower critical threshold for Litter Cover (%) is set at <40%.

Metric Definition:

Litter Cover (%)

Benchmark Definition:

This benchmark defines the lower critical threshold of litter cover below which ecosystem function and soil protection are significantly compromised in tropical rainforest production forestry.

Justification:

Below this level, the protective function against soil erosion is significantly compromised in high-rainfall tropical environments.

Sources (1)

Preview of The effect of litter layer on controlling surface runoff and erosion in ...
The effect of litter layer on controlling surface runoff and erosion in ...

The effect of litter layer on controlling surface runoff and erosion in rubber plantations on tropical mountain slopes, SW China | Request PDF - ResearchGate

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Supporting Sources (2)

Additional references from the underlying research that informed this benchmark.

Preview of TROPICAL RAINFOREST LOGGING IN NORTH QUEENSLAND: WAS IT SUSTAINABLE? - CiteSeerX
TROPICAL RAINFOREST LOGGING IN NORTH QUEENSLAND: WAS IT SUSTAINABLE? - CiteSeerX
Direct Evidence

Combined Effects of Fire and Selective Timber Harvesting on Forest Structure, Composition and Topsoil Properties in a Sub-Tropical Eucalypt Forest (Ryan et al. 2021)

View Source
Preview of Using experimental manipulation to assess the roles of leaf litter in the functioning of forest ecosystems
Using experimental manipulation to assess the roles of leaf litter in the functioning of forest ecosystems
Contextual Support Journal

Using experimental manipulation to assess the roles of leaf litter in the functioning of forest ecosystems

View Source

Context

  • Region Australia
  • Biome Tropical & Subtropical Rainforests
  • Land Use Production Forestry
  • Assessment Pristine Reference
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 20 Mar 2026

Notes

Represents a state of high ecological risk and management failure.

Related Benchmarks

Other benchmarks in the AUS-TSR-FOR-LIT family.