Basal Area

AUS-TMI-FOR-BAS General Moderate confidence

Benchmark Value

No specific value — see range
Range: 14 to 19 m²/ha
Optimal Range: 14 to 19
Direction: Higher is desirable ↑
Form: OptimalRange

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 12 benchmarks together — the OptimalRange form drives the primary score, while 11 guard(s) constrain the result.

Evidence & Context

An Optimal Range for balancing ecological health and sustainable production is identified as 14 to 19 m²/ha.

Metric Definition:

Basal area is the total cross-sectional area of all tree stems in a stand at breast height, expressed as m²/ha.

Benchmark Definition:

Optimal range is the basal area range balancing ecological health and productive potential in sustainably managed production forests.

Justification:

Synthesized from the lower threshold and the saturation point data, representing a balance between retaining sufficient ecological structure and maintaining high productive vigor.

Sources (1)

Preview of Native Forests Show Resilience to Selective Timber Harvesting in Southeast Queensland, Australia
Native Forests Show Resilience to Selective Timber Harvesting in Southeast Queensland, Australia Journal

Resilience of selectively harvested forests to timber harvesting in subtropical Australia

View Source

Context

  • Region Australia
  • Biome Tropical & Subtropical Maritime Islands
  • Land Use Production Forestry
  • Assessment Pristine Reference
  • Evidence Type HealthyOperationalRange

Lifecycle

  • Status Active
  • Version 2
  • Effective From 22 Mar 2026

Notes

Operating within this range allows maintenance of a healthy, structurally diverse forest ecosystem while optimizing timber production.