Vegetation Extent

AUS-ASC-FOR-VEX General High confidence

Benchmark Value

40 ha

Thresholds: Lower: —, Upper: 40

Direction: Lower 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.

Evidence & Context

"The maximum size of clearfall, seed tree or shelterwood 1 coupes is 40 ha net harvested area."

Metric Definition:

Maximum extent of a single temporary forest removal event.

Benchmark Definition:

This benchmark sets the maximum size of a single forest removal event to control landscape fragmentation in production forestry.

Justification:

Controls landscape fragmentation and ensures edge-effect limits.

Sources (1)

Management Standards and Procedures for timber harvesting operations

Management Standards and Procedures for timber harvesting operations

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Supporting Sources (5)

Additional references from the underlying research that informed this benchmark.

Australia state of the environment 2021: land, accessed May 11, 2025

Direct Evidence Journal

Management Standards and Procedures for timber harvesting operations in Victoria’s State forests

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Monitoring Eucalyptus delegatensis in Tasmania

Direct Evidence

Monitoring Eucalyptus delegatensis in Tasmania

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Policy for Maintaining a Permanent Native Forest Estate

Direct Evidence

Policy for Maintaining a Permanent Native Forest Estate

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Technical Bulletin 5: Silvicultural systems for native eucalypt forests

Direct Evidence

Technical Bulletin 5: Silvicultural systems for native eucalypt forests

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VNPA-Alpine-Ash-forests-of-mainland-Australia

Direct Evidence

VNPA-Alpine-Ash-forests-of-mainland-Australia

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Context

Region Australia
Biome Alpine and Subalpine Complex
Land Use Production Forestry
Assessment Net harvested area
Evidence Type RegulatoryTrigger

Lifecycle

Status Active
Version 1
Effective From 10 Apr 2026

Notes

Upper Detrimental Threshold: 40 ha.

Related Benchmarks

Other benchmarks in the AUS-ASC-FOR-VEX family.