Gully Density

AUS-TMS-FOR-GUL General Moderate confidence

Benchmark Value

0 m/ha

Range: 0 to 0 m/ha

Thresholds: Lower: 0, Upper: —

Optimal Range: 0 to 0

Direction: Lower is desirable ↓

Form: Point

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 reference value is therefore proposed as: Approaching 0 m/ha for active, human-induced or exacerbated gullies (defined as features >0.3m deep with evidence of ongoing erosion).

Metric Definition:

Gully density, defined as the length of active gullies per hectare, specifically for active, human-induced or exacerbated gullies defined as features >0.3m deep with evidence of ongoing erosion.

Benchmark Definition:

This benchmark represents the target gully density in tropical monsoonal savannas under production forestry, aiming for negligible active, human-induced gullies to maintain ecological health.

Justification:

This benchmark is primarily inferred from the preventative objectives of Australian state-level Forestry Codes of Practice and soil conservation principles, reflecting the highest achievable level of ecological health compatible with sustainable production forestry.

Sources (2)

Preview of IFOA remake written submission 71 - NSW Environment Protection Authority, accessed May 15, 2025,

IFOA remake written submission 71 - NSW Environment Protection Authority, accessed May 15, 2025, Journal

IFOA remake written submission 71 - NSW Environment Protection Authority, accessed May 15, 2025,

Preview of Queensland Department of Resources (2023) "Accepted development vegetation clearing code: Managing a native forest practice"

Queensland Department of Resources (2023) "Accepted development vegetation clearing code: Managing a native forest practice" Journal

www.qld.gov.au, accessed May 15, 2025

Supporting Sources (24)

Additional references from the underlying research that informed this benchmark.

Preview of Assessment of forest canopy vertical structure with multi-scale remote sensing: from the plot to the large area - ResearchGate, accessed May 15, 2025,

Assessment of forest canopy vertical structure with multi-scale remote sensing: from the plot to the large area - ResearchGate, accessed May 15, 2025,

Contextual Support Methodology Source GreyLiterature

Assessment of forest canopy vertical structure with multi-scale remote sensing: from the plot to the large area - ResearchGate, accessed May 15, 2025,

Preview of Assessment of UAV and Ground-Based Structure from Motion with Multi-View Stereo Photogrammetry in a Gullied Savanna Catchment - MDPI, accessed May 15, 2025,

Assessment of UAV and Ground-Based Structure from Motion with Multi-View Stereo Photogrammetry in a Gullied Savanna Catchment - MDPI, accessed May 15, 2025,

Methodology Source Journal

Assessment of UAV and Ground-Based Structure from Motion with Multi-View Stereo Photogrammetry in a Gullied Savanna Catchment - MDPI, accessed May 15, 2025,

Preview of Australia state of the environment 2021: land, accessed May 11, 2025

Australia state of the environment 2021: land, accessed May 11, 2025

Contextual Support Journal

Management Standards and Procedures for timber harvesting operations in Victoria’s State forests

Preview of ecollaboration.org.au, accessed May 15, 2025,

ecollaboration.org.au, accessed May 15, 2025,

Contextual Support Journal

Gully Erosion | ECOllaboration, accessed July 20, 2025

Preview of EFFECTIVE FIELD CALIBRATION AND VALIDATION PRACTICES - Terrestrial Ecosystem Research Network, accessed May 15, 2025,

EFFECTIVE FIELD CALIBRATION AND VALIDATION PRACTICES - Terrestrial Ecosystem Research Network, accessed May 15, 2025,

Methodology Source Journal

TERN Publications 2009-2019, accessed April 6, 2026

Preview of Final PER Guidelines - NTEPA, accessed May 15, 2025,

Final PER Guidelines - NTEPA, accessed May 15, 2025,

Regulatory Framework Journal

Final PER Guidelines - NTEPA, accessed May 15, 2025,

Preview of Gully erosion assessment and control guide - Local Land Services, accessed May 15, 2025,

Gully erosion assessment and control guide - Local Land Services, accessed May 15, 2025,

Direct Evidence Methodology Source Government

New England Peppermint (Eucalyptus nova-anglica) Grassy Woodlands ecological listing advice, accessed August 6, 2025

Preview of Linking hydrological connectivity to gully erosion in savanna rangelands tributary to the Great Barrier Reef using Structure‐from‐Motion photogrammetry | Request PDF - ResearchGate, accessed May 15, 2025,

Linking hydrological connectivity to gully erosion in savanna rangelands tributary to the Great Barrier Reef using Structure‐from‐Motion photogrammetry | Request PDF - ResearchGate, accessed May 15, 2025,

Contextual Support Methodology Source Journal

Linking hydrological connectivity to gully erosion in savanna rangelands tributary to the Great Barrier Reef using Structure‐from‐Motion photogrammetry | Request PDF - ResearchGate, accessed May 15, 2025,

Preview of nesplandscapes.edu.au, accessed May 15, 2025,

nesplandscapes.edu.au, accessed May 15, 2025,

Contextual Support Journal

Alluvial Gully Erosion Rates and Processes Across the Mitchell ..., accessed July 21, 2025,

Preview of Prioritising interventions for the reduction of erosion in classical gullies: a modelling study, accessed May 15, 2025,

Prioritising interventions for the reduction of erosion in classical gullies: a modelling study, accessed May 15, 2025,

Contextual Support Methodology Source Journal

Prioritising interventions for the reduction of erosion in classical gullies: a modelling study, accessed May 15, 2025,

Preview of RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Regulatory Framework

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Preview of RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Regulatory Framework

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Preview of RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Regulatory Framework

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Preview of RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Regulatory Framework

RTI 200581 - OIR Disclosure Log - Office of Industrial Relations, accessed May 15, 2025,

Preview of Site-specific environmental authority application - Queensland Environment Department, accessed May 15, 2025,

Site-specific environmental authority application - Queensland Environment Department, accessed May 15, 2025,

Regulatory Framework

Site-specific environmental authority application - Queensland Environment Department, accessed May 15, 2025,

Preview of Soil Quality and Its Management in Humid Subtropical and Tropical Environments - UKnowledge, accessed May 15, 2025,

Soil Quality and Its Management in Humid Subtropical and Tropical Environments - UKnowledge, accessed May 15, 2025,

Contextual Support

a comparisonof the soils of tropical latin america ano tropical australia, accessed May 13, 2025,

Preview of Soils and land suitability for the Victoria catchment ... - CSIRO, accessed May 15, 2025,

Soils and land suitability for the Victoria catchment ... - CSIRO, accessed May 15, 2025,

Contextual Support Journal

Impact of soil conditions on hydrology and water quality for a brown clay in the north-eastern cereal zone of Australia - CSIRO Publishing, accessed July 21, 2025,

Preview of Standard Pastoral Land Clearing Application - Northern Territory Government, accessed May 15, 2025,

Standard Pastoral Land Clearing Application - Northern Territory Government, accessed May 15, 2025,

Regulatory Framework Journal

Standard Pastoral Land Clearing Application - Northern Territory Government, accessed May 15, 2025,

Preview of Surface and subsurface flow effect on permanent gully formation and upland erosion near Lake Tana in the northern highlands of E - HESS - Recent, accessed May 15, 2025,

Surface and subsurface flow effect on permanent gully formation and upland erosion near Lake Tana in the northern highlands of E - HESS - Recent, accessed May 15, 2025,

Contextual Support Journal

Surface and subsurface flow effect on permanent gully formation and upland erosion near Lake Tana in the northern highlands of E - HESS - Recent, accessed May 15, 2025,

Preview of www.qld.gov.au, accessed May 15, 2025,

www.qld.gov.au, accessed May 15, 2025,

Regulatory Framework

www.qld.gov.au, accessed May 15, 2025,

Preview of www.qld.gov.au, accessed May 15, 2025,

www.qld.gov.au, accessed May 15, 2025,

Regulatory Framework

www.qld.gov.au, accessed May 15, 2025,

Preview of www.qld.gov.au, accessed May 15, 2025,

www.qld.gov.au, accessed May 15, 2025,

Regulatory Framework

www.qld.gov.au, accessed May 15, 2025,

Preview of www.qld.gov.au, accessed May 15, 2025,

www.qld.gov.au, accessed May 15, 2025,

Regulatory Framework

www.qld.gov.au, accessed May 15, 2025,

Preview of www.rrrc.org.au, accessed May 15, 2025,

www.rrrc.org.au, accessed May 15, 2025,

Contextual Support Journal

Sediments and nutrients in north Queensland tropical streams: changes with agricultural development and pristine condition status (Technical Report No. 62, Australian Rainforest CRC, 2006)

Context

Region Australia
Biome Tropical Monsoonal Savannas
Land Use Production Forestry
Assessment Production Forestry
Vegetation Tropical Monsoonal Savannas
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 1
Effective From 15 Mar 2026

Notes

Lower Critical Threshold: 0 m/ha. No upper detrimental threshold — higher values indicate environmental harm and should be managed immediately. The optimal range is 0 m/ha.