Ground Cover - Shrubs

AUS-TDG-LVG-GCS General High confidence

Benchmark Value

50 %
Direction: Lower 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.

Evidence & Context

"The total projective canopy cover of woody shrubs over 0.5 m tall can be up to 50% in this ecological community but is typically much less."

Metric Definition:

Total projective canopy cover of woody shrubs over 0.5 m tall

Benchmark Definition:

Degradation threshold marking the structural limit of a critically endangered grassland community, beyond which woody shrub encroachment alters the ecosystem.

Justification:

Defines the structural limit for natural grasslands on basalt and fine-textured alluvial plains in northern NSW and southern Queensland, above which the system shifts to shrubland or open woodland.

Sources (1)

Preview of Natural grasslands on basalt and fine-textured alluvial plains of northern New South Wales and southern Queensland
Natural grasslands on basalt and fine-textured alluvial plains of northern New South Wales and southern Queensland Government

Natural grasslands on basalt and fine-textured alluvial plains of northern New South Wales and southern Queensland

View Source

Supporting Sources (9)

Additional references from the underlying research that informed this benchmark.

Preview of BioCondition Benchmarks for Regional Ecosystem ... - WordPress.com, accessed August 3, 2025,
BioCondition Benchmarks for Regional Ecosystem ... - WordPress.com, accessed August 3, 2025,
Direct Evidence Journal

BioCondition benchmarks for Regional Ecosystems

View Source
Preview of Box - Gum Grassy Woodlands and Derived Grasslands
Box - Gum Grassy Woodlands and Derived Grasslands
Direct Evidence Journal

Box - Gum Grassy Woodlands and Derived Grasslands

View Source
Preview of EVC 175: Grassy Woodland - Gippsland Plain bioregion
EVC 175: Grassy Woodland - Gippsland Plain bioregion
Direct Evidence Journal

EVC 175: Grassy Woodland - Gippsland Plain bioregion

View Source
Preview of EVC 3: Damp Sands Herb-rich Woodland - Otway Plain bioregion
EVC 3: Damp Sands Herb-rich Woodland - Otway Plain bioregion
Direct Evidence Journal

EVC 3: Damp Sands Herb-rich Woodland - Otway Plain bioregion

View Source
Preview of EVC 55: Plains Grassy Woodland - Goldfields bioregion benchmark document
EVC 55: Plains Grassy Woodland - Goldfields bioregion benchmark document
Direct Evidence Journal

EVC 55: Plains Grassy Woodland - Goldfields bioregion

View Source
Preview of EVC/Bioregion Benchmark for Vegetation Quality Assessment: Dundas Tablelands bioregion
EVC/Bioregion Benchmark for Vegetation Quality Assessment: Dundas Tablelands bioregion
Direct Evidence Journal

EVC 3: Damp Sands Herb-rich Woodland - Dundas Tablelands bioregion

View Source
Preview of Highlands – Southern Fall bioregion - Environment, accessed April 6, 2026
Highlands – Southern Fall bioregion - Environment, accessed April 6, 2026
Direct Evidence Journal

EVC 3: Damp Sands Herb-rich Woodland - Highlands - Southern Fall bioregion

View Source
Preview of Victorian Volcanic Plain bioregion - Environment, accessed August 12, 2025
Victorian Volcanic Plain bioregion - Environment, accessed August 12, 2025
Direct Evidence Journal

EVC 3: Damp Sands Herb-rich Woodland - Victorian Volcanic Plain bioregion

View Source
Preview of Wimmera Bioregion EVC Benchmarks - Damp Sands Herb-rich Woodland (EVC 3)
Wimmera Bioregion EVC Benchmarks - Damp Sands Herb-rich Woodland (EVC 3)
Direct Evidence Journal

EVC 3: Damp Sands Herb-rich Woodland - Wimmera bioregion

View Source

Context

  • Region Australia
  • Biome Temperate Dry Woodlands & Native Grasslands
  • Land Use Livestock Grazing & Pasture
  • Assessment Agricultural Biodiversity Target
  • Vegetation Grassland
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 10 Jul 2026

Notes

Localized dense pockets can occur, but overall cover is typically much less than 50%.

Related Benchmarks

Other benchmarks in the AUS-TDG-LVG-GCS family.

1 % High
Point Active v3
15 % High
Point Active v2
1 % High
Point Active v2
10 % High
Point Active v2
1 % High
Point Active v2
5 % High
Point Active v2
1 % High
Point Active v2
15 % High
Point Active v1
30 % High
MaximumOnly Active v1
5 % High
Point Superseded v2
5 % High
Point Superseded v1
15 % High
Point Superseded v1
25 % High
Point Superseded v1
15 % High
Point Superseded v1
20 % High
Point Superseded v1
15 % High
Point Superseded v1
20 % High
Point Superseded v1