Gully Density

AUS-TSR-URB-GUL General Moderate confidence

Benchmark Value

0 m/ha
Direction: Lower is desirable ↓
Form: MaximumOnly

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is Point, 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

Point Primary Point Guard MaximumOnly Guard MaximumOnly Guard Point Guard

Evidence & Context

The upper detrimental threshold for active gully density is any measurable value greater than 0 m/ha.

Metric Definition:

Active gully density, defined as the density of active erosional gullies in the landscape.

Benchmark Definition:

This benchmark defines the maximum acceptable active gully density in tropical and subtropical rainforest urban areas, above which landscape degradation occurs.

Justification:

Active gullies signify uncontrolled erosion and are a major source of sediment and nutrient pollution, thus any non-zero value is detrimental.

Supporting Sources (15)

Additional references from the underlying research that informed this benchmark.

Preview of A closer look at rainforests - Forestry Corporation, accessed July 21, 2025,
A closer look at rainforests - Forestry Corporation, accessed July 21, 2025,
Contextual Support Journal

A closer look at rainforests - Forestry Corporation, accessed July 21, 2025

View Source
Preview of Chapter 13 Gully erosion and its control - Queensland Government publications, accessed August 12, 2025
Chapter 13 Gully erosion and its control - Queensland Government publications, accessed August 12, 2025
Direct Evidence Journal

The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan

View Source
Preview of ecollaboration.org.au, accessed May 15, 2025,
ecollaboration.org.au, accessed May 15, 2025,
Contextual Support Journal

Gully Erosion | ECOllaboration

View Source
Preview of Gully mapping and drivers in the grazing lands of the Burdekin catchment (RP66G) Summary Report - Queensland Government publications, accessed August 1, 2025,
Gully mapping and drivers in the grazing lands of the Burdekin catchment (RP66G) Summary Report - Queensland Government publications, accessed August 1, 2025,
Contextual Support Journal

Grazing impacts on gully dynamics indicate approaches for gully erosion control in northeast Australia - The Australian National University

View Source
Preview of Lowland Rainforest of Subtropical Australia ecological community - conservation advice, accessed July 21, 2025,
Lowland Rainforest of Subtropical Australia ecological community - conservation advice, accessed July 21, 2025,
Contextual Support GreyLiterature

Lowland Rainforest of Subtropical Australia ecological community - conservation advice, accessed July 21, 2025

View Source
Preview of NATURE and DISTRIBUTION of RAINFOREST S in NEW SOUTH WALES-), accessed July 21, 2025,
NATURE and DISTRIBUTION of RAINFOREST S in NEW SOUTH WALES-), accessed July 21, 2025,
Contextual Support Journal

NATURE and DISTRIBUTION of RAINFOREST S in NEW SOUTH WALES-), accessed July 21, 2025

View Source
Preview of Prioritising interventions for the reduction of erosion in classical gullies: a modelling study, accessed May 13, 2025
Prioritising interventions for the reduction of erosion in classical gullies: a modelling study, accessed May 13, 2025
Contextual Support Journal

Report card on sustainable natural resource use in the rangelands

View Source
Preview of Program - CSIRO, accessed August 1, 2025,
Program - CSIRO, accessed August 1, 2025,
Contextual Support Journal

Rehabilitation effects on gully sediment yields and vegetation in a savanna rangeland - CSIRO Research Publications Repository

View Source
Preview of Protect your construction site with erosion and sediment control during the wet season, accessed July 21, 2025,
Protect your construction site with erosion and sediment control during the wet season, accessed July 21, 2025,
Methodology Source Journal

Gully erosion prediction across a large region: Murray–Darling Basin, Australia

View Source
Preview of Publications - International Erosion Control Association, accessed August 1, 2025,
Publications - International Erosion Control Association, accessed August 1, 2025,
Direct Evidence

Best Practice Erosion and Sediment Control (BPESC) document

View Source
Preview of Sediment control | YourHome, accessed July 21, 2025,
Sediment control | YourHome, accessed July 21, 2025,
Contextual Support Government

Sediment control - | YourHome

View Source
Preview of Six Steps to Sustainable Best Practice in Tropical Climates - Sourceable, accessed July 21, 2025,
Six Steps to Sustainable Best Practice in Tropical Climates - Sourceable, accessed July 21, 2025,
Contextual Support GreyLiterature

Six Steps to Sustainable Best Practice in Tropical Climates - Sourceable, accessed July 21, 2025

View Source
Preview of Targeting Gully Erosion at a Catchment Scale - MSSANZ, accessed July 21, 2025,
Targeting Gully Erosion at a Catchment Scale - MSSANZ, accessed July 21, 2025,
Contextual Support Journal

Targeting Gully Erosion at a Catchment Scale - MSSANZ, accessed July 21, 2025

View Source
Preview of Targets for Urban Stormwater Management in Australia - MDPI, accessed July 21, 2025
Targets for Urban Stormwater Management in Australia - MDPI, accessed July 21, 2025
Contextual Support Journal

Targets for Urban Stormwater Management in Australia - MDPI, accessed July 21, 2025

View Source
Preview of Urban stormwater - Queensland best practice environmental management guidelines 2009, accessed July 21, 2025,
Urban stormwater - Queensland best practice environmental management guidelines 2009, accessed July 21, 2025,
Contextual Support Journal

Urban stormwater - Queensland best practice environmental management guidelines 2009, accessed July 25, 2025

View Source

Context

  • Region Australia
  • Biome Tropical & Subtropical Rainforests
  • Land Use Urban & Developed Use
  • Assessment Conservation Target
  • Vegetation Forest
  • Season Wet season (typically November to March)
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 7 Jun 2026

Notes

This threshold is critical in the tropical rainforest biome due to high rainfall intensity and soil erodibility.

Related Benchmarks

Other benchmarks in the AUS-TSR-URB-GUL family.

0 m/ha Moderate
Urban & Developed Use · Conservation Target · Forest · Wet season (typically November to March)
Point Active v1