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 4 benchmarks together — the OptimalRange form drives the primary score, while 3 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
An upper boundary around >20-25 m²/ha, beyond which detrimental impacts on pasture productivity and potential ecological imbalances become significant in a grazing context.
Basal Area (BA) as the cross-sectional area of tree stems at breast height per unit ground area.
This benchmark represents the upper detrimental threshold of Basal Area beyond which negative ecological and productivity impacts occur in temperate dry woodlands and native grasslands under livestock grazing.
Based on evidence of competition with pasture, woody thickening, water stress, and stand stagnation at high BA levels.
Sources (1)
Synthesis derived from multiple sources including Lindenmayer et al. (2020), Wardle et al. (2024), Florence (2002), Fensham (1998), NSW OEH (2019), Keto & Scott (2024). See report Sections 3 & 6 for details.
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