Litter Cover

AUS-AIF-CON-LIT General Moderate confidence

Benchmark Value

30 %
Thresholds: Lower: 30, Upper: —
Direction: Higher is desirable ↑
Form: MinimumOnly

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

CompositeFramework Primary OptimalRange Guard LowerThreshold Guard Point Guard Point Guard MinimumOnly Guard Point Guard OptimalRange Guard MinimumOnly Guard MinimumOnly Guard Point Guard OptimalRange Guard MaximumOnly Guard

Evidence & Context

A lower critical threshold is identified at approximately 30% cover, below which core ecosystem functions are significantly compromised.

Metric Definition:

Litter cover, the proportion of the ground surface covered by dead plant material

Benchmark Definition:

Litter cover is the proportion of the ground surface covered by dead plant material. This threshold marks the minimum cover needed to maintain core ecosystem functions in the Arid Inland Floodplains & Ephemeral River Systems biome.

Justification:

The rationale for this threshold is twofold. First, it aligns with the scoring system of the RARC framework, where the range of 1-30% cover receives a low score of '1', while the 31-60% range receives a higher score of '2', indicating a significant functional step-change around the 30% mark. Second, it is consistent with broader principles of rangeland and soil science, where a ground cover of at least 30% is widely considered the minimum required to provide effective protection against wind and water erosion.

Sources (1)

Preview of Rapid Appraisal of Riparian Condition: Technical Guideline for the ..., accessed July 22, 2025,
Rapid Appraisal of Riparian Condition: Technical Guideline for the ..., accessed July 22, 2025, Journal

Rapid Appraisal of Riparian Condition: Technical Guideline for the ..., accessed July 22, 2025,

View Source

Supporting Sources (11)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) Australian net (1950s-1990) soil organic carbon erosion ..., accessed July 21, 2025,
(PDF) Australian net (1950s-1990) soil organic carbon erosion ..., accessed July 21, 2025,
Contextual Support Journal

Knowledge Review - WaterConnect, accessed July 22, 2025,

View Source
Preview of Are extreme wet periods the key to successful floodplain tree recruitment in the Queensland Murray 6Darling Basin?, accessed July 22, 2025,
Are extreme wet periods the key to successful floodplain tree recruitment in the Queensland Murray 6Darling Basin?, accessed July 22, 2025,
Contextual Support

Are extreme wet periods the key to successful floodplain tree recruitment in the Queensland Murray 6Darling Basin?, accessed July 22, 2025,

View Source
Preview of Australian vegetation phenology: new insights from satellite remote sensing and digital repeat photography - BG, accessed July 22, 2025,
Australian vegetation phenology: new insights from satellite remote sensing and digital repeat photography - BG, accessed July 22, 2025,
Contextual Support Government

Australian vegetation phenology: new insights from satellite remote sensing and digital repeat photography - BG, accessed July 22, 2025,

View Source
Preview of Coolibah – Black Box Woodlands of the Darling Riverine Plains and the Brigalow Belt South Bioregions ecological community list, accessed July 8, 2025
Coolibah – Black Box Woodlands of the Darling Riverine Plains and the Brigalow Belt South Bioregions ecological community list, accessed July 8, 2025
Contextual Support Journal

2017 618 Basin-scale evaluation of Commonwealth environmental water 6 Vegetation Diversity - DCCEEW, accessed July 22, 2025,

View Source
Preview of Feral Pigs: Pest Status and Prospects for Control - Rainforest CRC, accessed July 22, 2025,
Feral Pigs: Pest Status and Prospects for Control - Rainforest CRC, accessed July 22, 2025,
Contextual Support Journal

Feral Pigs: Pest Status and Prospects for Control - Rainforest CRC, accessed July 22, 2025,

View Source
Preview of Rip Rap 26 - Tools and techniques for river management - WetlandInfo, accessed July 22, 2025,
Rip Rap 26 - Tools and techniques for river management - WetlandInfo, accessed July 22, 2025,
Contextual Support Journal

Environmental Impact Statement (EIS) Report under the Environmental Protection Act 1994, Arrow Bowen Gas Project, Proposed by Ar - Queensland Government, accessed July 22, 2025,

View Source
Preview of Riparian Habitat Values Assessment of the Diamantina River Catchment; Lake Eyre Basin, South Australia - Department for Environment and Water, accessed July 22, 2025,
Riparian Habitat Values Assessment of the Diamantina River Catchment; Lake Eyre Basin, South Australia - Department for Environment and Water, accessed July 22, 2025,
Direct Evidence Journal

Riparian Habitat Values Assessment of the Diamantina River Catchment; Lake Eyre Basin, South Australia - Department for Environment and Water, accessed July 18, 2025

View Source
Preview of Riparian Rapid Assessment Method for California - Moss Landing Marine Laboratories, accessed July 22, 2025,
Riparian Rapid Assessment Method for California - Moss Landing Marine Laboratories, accessed July 22, 2025,
Contextual Support Journal

Understanding Ecological and Biophysical Processes in Queensland's Wetlands: Literature Review and Gap Analysis - WetlandInfo, accessed July 22, 2025,

View Source
Preview of Riparian vegetation extent and condition - GBA Explorer, accessed July 22, 2025,
Riparian vegetation extent and condition - GBA Explorer, accessed July 22, 2025,
Contextual Support Journal

Return of the lignum dead: Resilience of an arid floodplain shrub to drought - ResearchGate, accessed July 22, 2025,

View Source
Preview of SoE2016 Biodiversity - Australia state of the environment 2021, accessed July 22, 2025,
SoE2016 Biodiversity - Australia state of the environment 2021, accessed July 22, 2025,
Contextual Support Journal

SoE2016 Biodiversity - Australia state of the environment 2021, accessed July 22, 2025,

View Source
Preview of Tropical Rapid Appraisal of Riparian Condition - DBCA Library, accessed July 22, 2025,
Tropical Rapid Appraisal of Riparian Condition - DBCA Library, accessed July 22, 2025,
Contextual Support Journal

Spatial BioCondition - Vegetation condition map for Queensland, accessed July 22, 2025,

View Source

Context

  • Region Australia
  • Biome Arid Inland Floodplains & Ephemeral River Systems
  • Land Use Conservation / Protected Natural Areas
  • Assessment Conservation Target
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 2
  • Effective From 20 Mar 2026

Notes

Lower Critical Threshold: 30 %. Below this level, the protective functions of litter are severely diminished, increasing risk of soil erosion and landscape degradation.

Related Benchmarks

Other benchmarks in the AUS-AIF-CON-LIT family.

60 % Moderate
Conservation / Protected Natural Areas ยท Conservation Target
MinimumOnly Superseded v1