Ground Cover - Tree Canopy

AUS-AIF-CON-TCC General Moderate confidence

Benchmark Value

40 %

Direction: Higher is desirable ↑

Form: MaximumOnly

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.

Contributing Benchmarks

OptimalRange Primary MinimumOnly Guard UpperThreshold Guard OptimalRange Guard MinimumOnly Guard MaximumOnly Guard OptimalRange Guard MinimumOnly Guard MaximumOnly Guard OptimalRange Guard LowerThreshold Guard MaximumOnly Guard

Evidence & Context

Upper Detrimental Threshold: >30–40%. Canopy cover exceeding this range is indicative of woody thickening.

Metric Definition:

Upper Detrimental Threshold for Tree Canopy Cover above which woody thickening causes ecological harm

Benchmark Definition:

This benchmark defines a threshold above which woody thickening suppresses understorey biodiversity and negatively impacts ecosystem health in the Arid Inland Floodplains & Ephemeral River Systems biome under conservation land use.

Justification:

Supported by ecological thinning guidelines and NVIS data on Casuarina forests.