Litter Cover

AUS-TSR-URB-LIT General Moderate confidence

Benchmark Value

0 %

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 detrimental threshold is crossed whenever litter accumulates on hard surfaces to a degree that it can be mobilized by runoff.

Metric Definition:

Upper detrimental threshold for litter cover (%) on impervious surfaces above which nutrient pollution in stormwater occurs.

Benchmark Definition:

Upper detrimental threshold for litter cover on impervious surfaces to prevent nutrient pollution.

Justification:

Studies show unmanaged litter on impervious surfaces contributes significantly to nutrient pollution in stormwater.

Sources (1)

Using leaf collection and street cleaning to reduce nutrients in urban ... Journal

Using leaf collection and street cleaning to reduce nutrients in urban ...

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Supporting Sources (20)

Additional references from the underlying research that informed this benchmark.

(PDF) Assessing rainforest restoration: the value of buffer strips for ...

Contextual Support Journal

(PDF) Assessing rainforest restoration: the value of buffer strips for ...

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(PDF) How does litter cover, litter diversity and fauna affect sediment ...

Contextual Support Journal

(PDF) How does litter cover, litter diversity and fauna affect sediment ...

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Benefits of Leaf Litter for Forest Regeneration - Tunley Environmental

Direct Evidence Journal

Stubble Retention in Cropping Systems in Southern Australia ..., accessed August 13, 2025

View Source

Brisbane City Council Standard Drawing BSD-8340: Stormwater Treatment Asset (STA) Tree Within Turf - Section

Direct Evidence Journal

Brisbane City Council Standard Drawing BSD-8340: Stormwater Treatment Asset (STA) Tree Within Turf - Section

View Source

Can urban greenspace combat climate change? Towards a subtropical cities research agenda - ResearchGate

Contextual Support Journal

Can urban greenspace combat climate change? Towards a subtropical cities research agenda - ResearchGate

View Source

Climate Emergency Strategy - Cities Power Partnership

Contextual Support Journal

Planning Scheme Policy Landscaping - Cairns Regional Council

View Source

Preview of Effects of drought on leaf-litter invertebrates of an Australian Wet Tropics ecosystem: the Daintree Rainforest - ANU Student Journals

Effects of drought on leaf-litter invertebrates of an Australian Wet Tropics ecosystem: the Daintree Rainforest - ANU Student Journals

Contextual Support

Nutrient Regulation of Organic Matter Decomposition in a Tropical Rain Forest - ScholarWorks

View Source

Factors affecting forest health

Contextual Support Journal

Factors affecting forest health

View Source

Factors affecting forest health, accessed August 9, 2025

Contextual Support Journal

Water Sensitive Urban Design in North Queensland - Water by Design

View Source

GREENING DARWIN STRATEGY - City of Darwin

Contextual Support Journal

GREENING DARWIN STRATEGY

View Source

Preview of Leaf litter decomposition characteristics and controlling factors across two contrasting forest types | Journal of Plant Ecology | Oxford Academic, accessed August 11, 2025,

Leaf litter decomposition characteristics and controlling factors across two contrasting forest types | Journal of Plant Ecology | Oxford Academic, accessed August 11, 2025,

Contextual Support Journal

A closer look at rainforests - Forestry Corporation

View Source

Preview of Litter accumulation and fire risks show direct and indirect climate-dependence at continental scale - PubMed Central, accessed May 15, 2025

Litter accumulation and fire risks show direct and indirect climate-dependence at continental scale - PubMed Central, accessed May 15, 2025

Contextual Support Journal

Soil Microbial Community and Litter Quality Controls on Decomposition Across a Tropical Forest Disturbance Gradient - Frontiers

View Source

MBRC Planning Scheme - Version 4 - Planning Scheme Policy - WSUD Standard drawings - Moreton Bay

Contextual Support

Untitled - Ipswich City Council

View Source

Nutrient scarcity strengthens soil fauna control over leaf litter decomposition in tropical rainforests - PubMed

Contextual Support Journal

Litter accumulation and fire risks show direct and indirect climate-dependence at continental scale - PubMed Central

View Source

Preview of Seasonal patterns in rainforest litterfall: Detecting endogenous and environmental influences from long-term sampling - ResearchGate

Seasonal patterns in rainforest litterfall: Detecting endogenous and environmental influences from long-term sampling - ResearchGate

Contextual Support Journal

Seasonal patterns in rainforest litterfall: Detecting endogenous and environmental influences from long-term sampling - ResearchGate

View Source

The benefits and costs of urban park designs: A water perspective ...

Contextual Support Government

The benefits and costs of urban park designs: A water perspective ...

View Source

UNDERSTANDING WATER SENSITIVE URBAN DESIGN (WSUD) CONCEPT - E-Journal UNSRAT

Contextual Support Journal

UNDERSTANDING WATER SENSITIVE URBAN DESIGN (WSUD) CONCEPT - E-Journal UNSRAT

View Source

Vegetation Protection Orders | Brisbane City Council

Regulatory Framework Government

Vegetation Protection Orders | Brisbane City Council

View Source

Water Sensitive Urban Design - Townsville City Council, accessed August 2, 2025,

Contextual Support Journal

Human society and wellbeing | Australia state of the environment 2021

View Source

Water-sensitive urban design - Wikipedia, accessed August 11, 2025,

Contextual Support GreyLiterature

Water-sensitive urban design - Wikipedia

View Source

Context

Region Australia
Biome Tropical & Subtropical Rainforests
Land Use Urban & Developed Use
Assessment Not Stated
Evidence Type DegradationThreshold

Lifecycle

Status Active
Version 1
Effective From 6 Jun 2026

Notes

Any significant accumulation of litter on impervious surfaces that can be mobilized by rainfall is detrimental. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.

Related Benchmarks

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