Soil Phosphorus
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 5 benchmarks together — the OptimalRange form drives the primary score, while 4 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
The reference value of 12 mg/kg (measured as Colwell-P or equivalent, e.g., Mehlich-1) is selected as a representative midpoint of the optimal range of 8–15 mg/kg.
Available soil phosphorus concentration measured by Colwell-P or equivalent method
This benchmark represents a reference value for soil available phosphorus in production forestry, selected as a midpoint of the optimal range balancing productivity and ecological health.
Selected as a midpoint of the optimal range balancing productivity and ecological health.
Sources (1)
Establishment of critical nutrient levels in soil and plant for eucalyptus
View SourceSupporting Sources (3)
Additional references from the underlying research that informed this benchmark.
(PDF) Establishment of critical nutrient levels in soil and plant for eucalyptus - ResearchGate
View Source
Phosphorus nutrition of phosphorus-sensitive Australian native plants: threats to plant communities in a global biodiversity hotspot - PMC
View SourcePhosphorus uptake and toxicity are delimited by mycorrhizal symbiosis in P-sensitive Eucalyptus marginata but not in P-tolerant Acacia celastrifolia - PubMed Central
View Source