Litter Cover
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 11 benchmarks together — the OptimalRange form drives the primary score, while 10 guard(s) constrain the result.
Evidence & Context
A functional lower critical threshold can be defined at <90% cover, representing a state where patches of bare soil are prevalent enough for erosion processes to accelerate and for the benefits of moisture retention and weed suppression to be substantially diminished.
Lower critical threshold for litter cover on pervious surfaces below which ecological function is impaired.
The point at which essential ecological functions are significantly compromised due to insufficient litter cover.
Below this level, exposure of bare soil leads to significantly increased risk of soil erosion, moisture loss, and degradation of soil habitat.
Sources (1)
Stubble Retention in Cropping Systems in Southern Australia ..., accessed August 13, 2025,
View SourceSupporting Sources (2)
Additional references from the underlying research that informed this benchmark.
Brisbane City Council Standard Drawing BSD-8340: Stormwater Treatment Asset (STA) Tree Within Turf - Section
View SourceUsing leaf collection and street cleaning to reduce nutrients in urban ...
View Source