Basal Area
Benchmark Value
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
A defensible lower critical threshold for production forestry in this biome can be estimated to be in the range of 10 to 12 m²/ha.
Basal area is the total cross-sectional area of all tree stems in a stand at breast height, expressed as m²/ha.
Lower critical threshold is the basal area below which key ecological functions and long-term productivity are significantly compromised.
Derived from minimum structural requirements for habitat (e.g., >4-5 large habitat trees/ha) and regulatory principles for minimum stand retention.
Sources (1)
Resilience of selectively harvested forests to timber harvesting in subtropical Australia
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