Ground Cover - Tree Canopy

AUS-TSR-FOR-TCC General Moderate confidence

Benchmark Value

80 %
Direction: Higher is desirable ↑
Form: MaximumOnly

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 4 benchmarks together — the OptimalRange form drives the primary score, while 3 guard(s) constrain the result.

Contributing Benchmarks

OptimalRange Primary OptimalRange Guard MinimumOnly Guard MaximumOnly Guard

Evidence & Context

An upper boundary exists not as a point of ecological collapse, but as a threshold of economic and regenerative stagnation, where post-harvest canopy cover above approximately 80% becomes sub-optimal for achieving integrated management goals.

Metric Definition:

Maximum percentage of Tree Canopy Cover above which regeneration and production goals are impaired in production forestry.

Benchmark Definition:

Upper boundary threshold of Tree Canopy Cover beyond which regeneration is suppressed and production viability is reduced in tropical and subtropical rainforest production forestry.

Justification:

Derived from observations that high residual canopy cover (>80%) following light harvesting suppresses regeneration and extends recovery cycles.

Sources (1)

Preview of Modelling growth, recruitments and mortality to describe and simulate dynamics of subtropical rainforests following different levels of disturbance
Modelling growth, recruitments and mortality to describe and simulate dynamics of subtropical rainforests following different levels of disturbance Journal

Modelling growth, recruitments and mortality to describe and simulate dynamics of subtropical rainforests following different levels of disturbance

View Source

Supporting Sources (10)

Additional references from the underlying research that informed this benchmark.

Preview of Australia's State of the Forests Report - 2013 - DAFF, accessed July 20, 2025
Australia's State of the Forests Report - 2013 - DAFF, accessed July 20, 2025
Contextual Support Journal

Australia's State of the Forests Report - 2013 - DAFF

View Source
Preview of AUSTRALIA'S STATE OF THE FORESTS REPORT - DAFF, accessed July 12, 2025,
AUSTRALIA'S STATE OF THE FORESTS REPORT - DAFF, accessed July 12, 2025,
Regulatory Framework Journal

Final report Advice on finalising Draft Private Native Forestry Codes of Practice March 2022

View Source
Preview of AUSTRALIA'S STATE OF THE FORESTS REPORT - DAFF, accessed July 20, 2025
AUSTRALIA'S STATE OF THE FORESTS REPORT - DAFF, accessed July 20, 2025
Contextual Support Journal

AUSTRALIA'S STATE OF THE FORESTS REPORT - DAFF

View Source
Preview of ecosystem services in a forest landscape facing significant changes Eleanor Rosemary Tew - CORE, accessed July 20, 2025
ecosystem services in a forest landscape facing significant changes Eleanor Rosemary Tew - CORE, accessed July 20, 2025
Contextual Support

ecosystem services in a forest landscape facing significant changes Eleanor Rosemary Tew - CORE, accessed July 20, 2025

View Source
Preview of Full article: Estimating the extent of selective timber harvesting in private native eucalypt forests with multi-temporal lidar - Taylor and Francis, accessed July 20, 2025
Full article: Estimating the extent of selective timber harvesting in private native eucalypt forests with multi-temporal lidar - Taylor and Francis, accessed July 20, 2025
Methodology Source Journal

Full article: Estimating the extent of selective timber harvesting in private native eucalypt forests with multi-temporal lidar - Taylor and Francis

View Source
Preview of Indicators of Rainforest Recovery from Disturbance - Preprints.org, accessed July 20, 2025
Indicators of Rainforest Recovery from Disturbance - Preprints.org, accessed July 20, 2025
Contextual Support Journal

Australia's native forests and wood production - DAFF

View Source
Preview of Land | State of the Environment Report 2011, accessed August 10, 2025,
Land | State of the Environment Report 2011, accessed August 10, 2025,
Contextual Support Journal

Reef Trust Phase IVGully and Stream Bank Toolbox ... - DCCEEW

View Source
Preview of Land | State of the Environment Report 2011, accessed July 20, 2025
Land | State of the Environment Report 2011, accessed July 20, 2025
Contextual Support Journal

Land | State of the Environment Report 2011

View Source
Preview of Regeneration changes in tree species abundance diversity and structure in logged and unlogged subtropical rainforest over a 36-y - CiteSeerX, accessed July 20, 2025
Regeneration changes in tree species abundance diversity and structure in logged and unlogged subtropical rainforest over a 36-y - CiteSeerX, accessed July 20, 2025
Contextual Support

Regeneration changes in tree species abundance diversity and structure in logged and unlogged subtropical rainforest over a 36-y - CiteSeerX

View Source
Preview of The Long-Term Survival and Growth of Enrichment Plantings in ..., accessed July 17, 2025,
The Long-Term Survival and Growth of Enrichment Plantings in ..., accessed July 17, 2025,
Contextual Support Journal

Reforestation in the Tropics and Subtropics of Australia

View Source

Context

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

Lifecycle

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

Notes

This threshold reflects a production forestry management consideration rather than ecological collapse.

Related Benchmarks

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

— % Moderate
Production Forestry · Conservation Target
OptimalRange Active v1
40 % Moderate
Production Forestry · Conservation Target
MinimumOnly Active v1