Vegetation Extent

AUS-ASC-FOR-VEX General High confidence

Benchmark Value

50 %

Direction: Higher is desirable ↑

Form: MinimumOnly

Scoring Curve

This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context.

Evidence & Context

"In Ash forests, thinning operations must retain at least 50% of the live pre-thinning basal area."

Metric Definition:

Minimum structural extent to be maintained during thinning.

Benchmark Definition:

This benchmark defines the minimum percentage of live pre-thinning basal area to retain during thinning operations in Ash forests in the Alpine and Subalpine Complex biome under production forestry.

Justification:

Maintains canopy integrity while allowing for selective timber removal.

Sources (1)

Management Standards and Procedures for timber harvesting operations

Management Standards and Procedures for timber harvesting operations

View Source

Supporting Sources (11)

Additional references from the underlying research that informed this benchmark.

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

Direct Evidence Journal

Buffel grass in Queensland's semi-arid woodlands - CSIRO Publishing, accessed July 13, 2025

View Source

Bago State Forest - Snowy Valleys Tourism Upgrade Program - Forestry Corporation

Direct Evidence Journal

Forest Biodiversity Declines and Extinctions Linked with Forest ...

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Forestry Tasmania. (2010). Silvicultural systems for native eucalypt forests. Technical Bulletin No. 5.

Direct Evidence Journal

Victoria Native Remnant Patch Definition

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Monitoring Eucalyptus delegatensis in Tasmania

Direct Evidence

Monitoring Eucalyptus delegatensis in Tasmania

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Permanent Native Forest Estate Policy

Direct Evidence Journal

Permanent Native Forest Estate Policy

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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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Private Native Forestry Code of Practice for Southern NSW - FAOLEX, accessed May 15, 2025

Direct Evidence Journal

Private Native Forestry Code of Practice for Southern NSW

View Source

Preview of Schedule-1-Management-Standards-and-Procedures-for-timber-harvesting-operations-in-Victorias-State-forests.pdf, accessed March 28, 2026,

Schedule-1-Management-Standards-and-Procedures-for-timber-harvesting-operations-in-Victorias-State-forests.pdf, accessed March 28, 2026,

Direct Evidence Journal

Management Standards and Procedures for Timber Harvesting Operations in Victoria's State Forests

View Source

Silvicultural monitoring in uneven-aged highland dry Eucalyptus delegatensis forests in Tasmania

Direct Evidence

Monitoring Eucalyptus delegatensis in Tasmania

View Source

Technical Bulletin 5: Silvicultural systems for native eucalypt forests

Direct Evidence

Technical Bulletin 5: Silvicultural systems for native eucalypt forests

View Source

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

Direct Evidence

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

View Source

Vegetation Extent

Benchmark Value

Scoring Curve

Evidence & Context

Sources (1)

Supporting Sources (11)

Context

Lifecycle

Notes

Related Benchmarks