Ground Cover - Grasses

AUS-ASC-CON-GCG General High confidence

Benchmark Value

50 %
Direction: Higher is desirable ↑
Form: MinimumOnly

Scoring Curve

This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context.

Evidence & Context

maintaining an average cover of above 50% across all surveys except for the drought-affected years of 1964 and 1968.

Metric Definition:

Percent cover of graminoids measured at permanent photoquadrats

Benchmark Definition:

Represents standard reference-state grass cover in tall alpine herbfield ecosystems under mature conservation management.

Justification:

The cited source explicitly identifies the value in a reference-site context for tall alpine herbfield under conservation.

Sources (1)

Preview of Pickering, C. M., Hill, W., & Johnston, F. M. (2005). Recovery of Alpine Vegetation from Grazing and Drought: Data from Long-term Photoquadrats in Kosciuszko National Park, Australia.
Pickering, C. M., Hill, W., & Johnston, F. M. (2005). Recovery of Alpine Vegetation from Grazing and Drought: Data from Long-term Photoquadrats in Kosciuszko National Park, Australia.

Pickering, C. M., Hill, W., & Johnston, F. M. (2005). Recovery of Alpine Vegetation from Grazing and Drought: Data from Long-term Photoquadrats in Kosciuszko National Park, Australia.

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Supporting Sources (3)

Additional references from the underlying research that informed this benchmark.

Preview of Guidelines for the removal, destruction or lopping of native vegetation - Environment
Guidelines for the removal, destruction or lopping of native vegetation - Environment
Direct Evidence Journal

Victorian Department of Sustainability and Environment (DSE). (2004). Ecological Vegetation Class (EVC) Bioregion Benchmark - East Gippsland Uplands Bioregion: EVC 206 Sub-alpine Grassland.

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Preview of Rehwinkel, R. (2014). Revised Floristic Value Scoring Method for Grassland Condition. Presentation at Friends of Grasslands Forum.
Rehwinkel, R. (2014). Revised Floristic Value Scoring Method for Grassland Condition. Presentation at Friends of Grasslands Forum.
Direct Evidence Journal

Rehwinkel, R. (2014). Revised Floristic Value Scoring Method for grassland condition.

View Source
Preview of Spatial and temporal functional changes in alpine summit vegetation ..., accessed on May 28, 2025,
Spatial and temporal functional changes in alpine summit vegetation ..., accessed on May 28, 2025,
Direct Evidence Journal

Summit vegetation monitoring dataset analysis (GLORIA Network). (2014). Species life-form categories strongly affected compositional changes and functional composition, with increasing dominance of tall shrubs and graminoids at the lower-elevation summits, and an overall increase in graminoids across the gradient.

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Context

  • Region Australia
  • Biome Alpine and Subalpine Complex
  • Land Use Conservation / Protected Natural Areas
  • Assessment Pristine Reference
  • Vegetation Grassland
  • Evidence Type ReferenceCondition

Lifecycle

  • Status Superseded
  • Version 1
  • Effective From 12 Jun 2026
  • Effective To 12 Jun 2026

Notes

This is a minimum healthy operational cover threshold observed in reference conditions.