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 7 benchmarks together — the OptimalRange form drives the primary score, while 6 guard(s) constrain the result.
Evidence & Context
Proposed Reference Value (PLFA-based): A PLFA-based F:B ratio of >3.0 is proposed as the benchmark representing a high-health state for conservation areas in Australia's Temperate Semi-Arid Shrublands & Open Woodlands.
Fungal to bacterial biomass ratio in soil as measured by Phospholipid Fatty Acid (PLFA) analysis.
This benchmark represents the fungal to bacterial biomass ratio in soil indicating a high-health conservation state in Australia's Temperate Semi-Arid Shrublands & Open Woodlands, where a ratio above 3.0 reflects a healthy ecosystem.
The confidence in this benchmark is rated as Moderate because it is derived by extrapolation from a functionally similar proxy system (well-managed pasture) rather than direct measurement from conservation areas in the target biome. The directional evidence from the primary source is strong and aligned with the biome and land use context.
Sources (2)
ausveg - fact sheet: soil microbiology
View SourceThe incorporation of fungal to bacterial ratios and plant ecosystem effect traits into a state-and-transition model of land-use change in semi-arid grasslands - Research @ Flinders
View Source