Soil Nitrogen

AUS-AIF-LVG-SON General Moderate confidence

Benchmark Value

No specific value — see range
Range: 900 to 1400 mg/kg
Optimal Range: 900 to 1400
Direction: Higher is desirable ↑
Form: OptimalRange

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 13 benchmarks together — the OptimalRange form drives the primary score, while 12 guard(s) constrain the result.

Evidence & Context

An optimal functional range is estimated to be 900-1400 mg/kg, reflecting values observed across arid to semi-arid high-condition floodplain sites.

Metric Definition:

Optimal functional range of Total Soil Nitrogen concentration supporting healthy ecosystem function.

Benchmark Definition:

This benchmark defines the optimal range of soil nitrogen concentration that supports healthy ecosystem function in arid inland floodplains and ephemeral river systems under livestock grazing and pasture.

Justification:

Based on values from high-condition arid and semi-arid sites and higher rainfall semi-arid floodplains.

Sources (1)

Preview of Channel Country bioregion - DCCEEW, accessed July 21, 2025
Channel Country bioregion - DCCEEW, accessed July 21, 2025 Journal

Channel Country bioregion - DCCEEW, accessed July 21, 2025

View Source

Context

  • Region Australia
  • Biome Arid Inland Floodplains & Ephemeral River Systems
  • Land Use Livestock Grazing & Pasture
  • Assessment Pristine Reference
  • Evidence Type HealthyOperationalRange

Lifecycle

  • Status Active
  • Version 1
  • Effective From 24 Mar 2026

Notes

Reflects sufficient nitrogen capital to support healthy perennial plant community and microbial activity.