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 5 benchmarks together — the OptimalRange form drives the primary score, while 4 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Basal area exceeding approx. 15 m²/ha is likely detrimental.
Tree basal area measured as the cross-sectional area of tree stems at breast height per unit of land area.
Upper detrimental threshold of tree basal area above which ecological harm occurs in grazed tropical monsoonal savannas.
Supported by studies indicating loss of savanna biodiversity and pasture productivity at high basal area levels.
Sources (1)
Scenario analysis of alternative vegetation management options on the greenhouse gas budget of two grazing businesses in north-eastern Australia (citing Bray, S.G., Golden, M., and Scanlan, J.C. (2006) Carbon stocks and sequestration potential in woodlands. Final Report for the Australian Greenhouse Office, Queensland Department of Natural Resources and Mines, Brisbane)
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
Investigating Intensive Grazing Systems in Northern Australia
View Source