Soil Nitrogen
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
A value below approximately 300 mg/kg is considered indicative of a degraded state where long-term ecosystem function and productive capacity are significantly compromised.
Lower critical threshold of total soil nitrogen concentration in the top 30 cm of soil.
Threshold below which soil nitrogen indicates degradation and compromised ecosystem function in arid forest soils.
Inferred from studies of degraded systems and paired-site studies showing significant declines in total nitrogen in cleared landscapes.
Sources (1)
Soil Characteristics and Fertility of the Unique Jarrah Forest of ...
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Additional references from the underlying research that informed this benchmark.
Soil nitrogen availability favours the growth but not germination of secondary invaders after clearing invasive Acacia saligna | Request PDF - ResearchGate
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