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 15 benchmarks together — the OptimalRange form drives the primary score, while 14 guard(s) constrain the result.
Evidence & Context
The concept of an upper detrimental threshold for ecological health is not well-supported by evidence; rather, values above 19 m²/ha represent a natural Saturation Point where net stand productivity declines due to intense competition and self-thinning.
Basal area as total cross-sectional area of tree stems per hectare.
An upper boundary of basal area representing natural carrying capacity or self-thinning limit in production forestry on tropical and subtropical maritime islands in Australia.
Based on the 95th percentile of basal area (P95 BA) of the analogous subtropical eucalypt forest.
Sources (1)
Resilience of selectively harvested forests to timber harvesting in subtropical Australia
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