Fungal:Bacterial Ratio
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 14 benchmarks together — the OptimalRange form drives the primary score, while 13 guard(s) constrain the result.
Evidence & Context
The optimal range for sustainable livestock grazing in Australian Arid Karstic Woodlands & Shrublands is proposed as 0.12 to 0.20.
Fungal:Bacterial ratio measured by PLFA analysis representing the relative biomass of fungi to bacteria in soil.
This range represents the optimal Fungal:Bacterial ratio for sustainable livestock grazing, balancing fungal soil building and bacterial nutrient cycling in the Australian arid biome.
This range balances long-term carbon sequestration with sufficient nutrient availability for pasture productivity, based on synthesis of proxy studies and grazing management evidence.
Sources (2)
Biochemical properties of highly mineralised and infertile soil modified by acacia and spinifex plants in northwest Queensland, Australia | Request PDF - ResearchGate
View Source(PDF) Soil community changes during secondary succession to naturalized grasslands, accessed August 9, 2025,
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
Soil microbial biomass in semi-arid communal sandy rangelands in the western Bophirima District, South Africa - ResearchGate
View Source