Soil Nitrogen

AUS-TMI-FOR-SON General Moderate confidence

Benchmark Value

No specific value — see range
Range: 2000 to 2500 mg/kg
Optimal Range: 2000 to 2500
Direction: Lower is desirable ↓
Form: OptimalRange

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

CompositeFramework Primary OptimalRange Guard LowerThreshold Guard UpperThreshold Guard Point Guard MinimumOnly Guard OptimalRange Guard MaximumOnly Guard Point Guard OptimalRange Guard Point Guard LowerThreshold Guard OptimalRange Guard UpperThreshold Guard Point Guard OptimalRange Guard MaximumOnly Guard Point Guard MinimumOnly Guard MaximumOnly Guard OptimalRange Guard OptimalRange Guard

Evidence & Context

Upper Detrimental Threshold: A conceptual threshold of >2000-2500 mg/kg is identified. Levels this high likely indicate excessive reliance on artificial fertilizers, leading to risks of nutrient leaching, water pollution, and ecological imbalances.

Metric Definition:

Conceptual upper detrimental threshold for total soil nitrogen concentration indicating ecological harm due to excessive artificial inputs.

Benchmark Definition:

Upper detrimental threshold indicating the point beyond which soil nitrogen levels cause ecological harm.

Justification:

Based on observed values in well-managed plantations and conceptual understanding of nutrient pollution risks.

Sources (1)

Preview of (PDF) Impact of thinning of Acacia mangium plantation on soil ..., accessed July 30, 2025,
(PDF) Impact of thinning of Acacia mangium plantation on soil ..., accessed July 30, 2025, Journal

Impact of thinning of Acacia mangium plantation on soil chemical properties

View Source

Supporting Sources (37)

Additional references from the underlying research that informed this benchmark.

Preview of 8 March 2009 To the inquiry I am writing to express my experience and opinion regarding the forest operations currently taking p, accessed July 30, 2025,
8 March 2009 To the inquiry I am writing to express my experience and opinion regarding the forest operations currently taking p, accessed July 30, 2025,
Contextual Support Journal

Acacia mangium - Kauai Invasive Species Committee (KISC)

View Source
Preview of Acacia mangium - Kauai Invasive Species Committee (KISC), accessed July 30, 2025,
Acacia mangium - Kauai Invasive Species Committee (KISC), accessed July 30, 2025,
Contextual Support Journal

Acacia mangium - Kauai Invasive Species Committee (KISC), accessed July 30, 2025

View Source
Preview of Acacia mangium - Wikipedia, accessed July 30, 2025,
Acacia mangium - Wikipedia, accessed July 30, 2025,
Contextual Support

Acacia mangium - Wikipedia, accessed July 30, 2025

View Source
Preview of Acacia mangium (brown salwood) | CABI Compendium, accessed August 1, 2025,
Acacia mangium (brown salwood) | CABI Compendium, accessed August 1, 2025,
Contextual Support

Acacia mangium (brown salwood) | CABI Compendium, accessed July 30, 2025

View Source
Preview of assessment report 29 - NTEPA - Northern Territory Government, accessed August 1, 2025,
assessment report 29 - NTEPA - Northern Territory Government, accessed August 1, 2025,
Contextual Support

Untitled - NTEPA - Northern Territory Government, accessed July 30, 2025

View Source
Preview of Benefits of planting Acacia mangium in terms of land restoration, C sequestration, soil fertility and tree production in different ecosystems - ResearchGate, accessed July 30, 2025,
Benefits of planting Acacia mangium in terms of land restoration, C sequestration, soil fertility and tree production in different ecosystems - ResearchGate, accessed July 30, 2025,
Contextual Support

Benefits of planting Acacia mangium in terms of land restoration, C sequestration, soil fertility and tree production in different ecosystems - ResearchGate, accessed July 30, 2025

View Source
Preview of BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 1. Environments and plants, accessed July 30, 2025,
BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 1. Environments and plants, accessed July 30, 2025,
Contextual Support Journal

BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 1. Environments and plants

View Source
Preview of BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed August 1, 2025,
BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed August 1, 2025,
Contextual Support Journal

BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed July 30, 2025

View Source
Preview of Carbon Program - Tiwi Resources, accessed July 30, 2025,
Carbon Program - Tiwi Resources, accessed July 30, 2025,
Contextual Support GreyLiterature

Carbon Program - Tiwi Resources, accessed July 30, 2025

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Preview of Categories - Zund, Peter - CSIRO Data Access Portal, accessed July 30, 2025,
Categories - Zund, Peter - CSIRO Data Access Portal, accessed July 30, 2025,
Contextual Support Government

Categories - Zund, Peter - CSIRO Data Access Portal, accessed July 30, 2025

View Source
Preview of Climate & Seasons | Australian Wildlife Journeys, accessed July 30, 2025,
Climate & Seasons | Australian Wildlife Journeys, accessed July 30, 2025,
Contextual Support Irrelevant

Soil erosion as a resilience drain in disturbed tropical forests, accessed August 1, 2025,

View Source
Preview of Eucalyptus growth in relation to combined nitrogen and phosphorus fertiliser and soil chemistry in Tasmania, accessed July 30, 2025, )/08Smethurst.pdf
Eucalyptus growth in relation to combined nitrogen and phosphorus fertiliser and soil chemistry in Tasmania, accessed July 30, 2025, )/08Smethurst.pdf
Contextual Support

Eucalyptus growth in relation to combined nitrogen and phosphorus fertiliser and soil chemistry in Tasmania, accessed July 30, 2025

View Source
Preview of Forestry | Department of Agriculture and Fisheries - Northern Territory Government, accessed July 30, 2025,
Forestry | Department of Agriculture and Fisheries - Northern Territory Government, accessed July 30, 2025,
Contextual Support Government

Forestry | Department of Agriculture and Fisheries - Northern Territory Government, accessed July 30, 2025

View Source
Preview of Full article: Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia, accessed July 30, 2025,
Full article: Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia, accessed July 30, 2025,
Contextual Support

Full article: Nutrient management of contrasting Acacia mangium genotypes and weed management strategies in South Sumatra, Indonesia, accessed July 30, 2025

View Source
Preview of Great Southern Plantations in the Tiwi Islands - Bad Developers Environmental Exposure Website, accessed July 30, 2025,
Great Southern Plantations in the Tiwi Islands - Bad Developers Environmental Exposure Website, accessed July 30, 2025,
Contextual Support GreyLiterature

Great Southern Plantations in the Tiwi Islands - Bad Developers Environmental Exposure Website, accessed July 30, 2025

View Source
Preview of Incredible Great Barrier Reef Islands For Your Holiday - Visitor's Guide - Queensland, accessed July 30, 2025,
Incredible Great Barrier Reef Islands For Your Holiday - Visitor's Guide - Queensland, accessed July 30, 2025,
Contextual Support

Incredible Great Barrier Reef Islands For Your Holiday - Visitor's Guide - Queensland, accessed August 2, 2025,

View Source
Preview of Inquiry into forestry and mining operations on the Tiwi Islands, accessed July 30, 2025,
Inquiry into forestry and mining operations on the Tiwi Islands, accessed July 30, 2025,
Contextual Support Journal

Inquiry into forestry and mining operations on the Tiwi Islands, accessed July 30, 2025

View Source
Preview of List of islands of Australia - Wikipedia, accessed July 30, 2025,
List of islands of Australia - Wikipedia, accessed July 30, 2025,
Contextual Support GreyLiterature

List of islands of Australia - Wikipedia, accessed July 30, 2025

View Source
Preview of Natural Resource Management Research - Tiwi Land Council, accessed July 30, 2025,
Natural Resource Management Research - Tiwi Land Council, accessed July 30, 2025,
Contextual Support Irrelevant

Natural Resource Management Research - Tiwi Land Council, accessed July 30, 2025

View Source
Preview of Nitrogen fixation of Acacia mangium Willd. from two seed sources grown at different levels of phosphorus in an Ultisol, South Sumatra, Indonesia | Request PDF - ResearchGate, accessed July 30, 2025,
Nitrogen fixation of Acacia mangium Willd. from two seed sources grown at different levels of phosphorus in an Ultisol, South Sumatra, Indonesia | Request PDF - ResearchGate, accessed July 30, 2025,
Contextual Support Journal

Nitrogen fixation of Acacia mangium Willd. from two seed sources grown at different levels of phosphorus in an Ultisol, South Sumatra, Indonesia | Request PDF - ResearchGate, accessed July 30, 2025

View Source
Preview of Nitrogen management in Eucalyptus nitens plantations - ResearchGate, accessed July 30, 2025,
Nitrogen management in Eucalyptus nitens plantations - ResearchGate, accessed July 30, 2025,
Contextual Support Direct Evidence Journal

Nitrogen management in Eucalyptus nitens plantations - ResearchGate

View Source
Preview of Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils - MDPI, accessed July 30, 2025,
Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils - MDPI, accessed July 30, 2025,
Contextual Support Journal

Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils - MDPI, accessed July 30, 2025

View Source
Preview of Priorities for improving soil condition across Australia's agricultural landscapes - CSIRO Research Publications Repository, accessed July 30, 2025,
Priorities for improving soil condition across Australia's agricultural landscapes - CSIRO Research Publications Repository, accessed July 30, 2025,
Contextual Support GreyLiterature

Priorities for improving soil condition across Australia's agricultural landscapes - CSIRO Research Publications Repository

View Source
Preview of Queensland tropical rain forests - Wikipedia, accessed July 30, 2025,
Queensland tropical rain forests - Wikipedia, accessed July 30, 2025,
Contextual Support

Queensland tropical rain forests - Wikipedia, accessed July 31, 2025,

View Source
Preview of Reforestation in the Tropics and Subtropics of Australia - ResearchGate, accessed July 30, 2025,
Reforestation in the Tropics and Subtropics of Australia - ResearchGate, accessed July 30, 2025,
Contextual Support

Reforestation in the Tropics and Subtropics of Australia - ResearchGate, accessed July 30, 2025

View Source
Preview of Resource management for growers | NT.GOV.AU, accessed July 30, 2025,
Resource management for growers | NT.GOV.AU, accessed July 30, 2025,
Contextual Support Government

Resource management for growers | NT.GOV.AU, accessed July 30, 2025

View Source
Preview of SLGA: Soil and Landscape Grid of Australia (Soil Attributes) | Earth Engine Data Catalog, accessed July 30, 2025,
SLGA: Soil and Landscape Grid of Australia (Soil Attributes) | Earth Engine Data Catalog, accessed July 30, 2025,
Contextual Support Methodology Source

Soil and Landscape Grid National Soil Attribute Maps - Cation Exchange Capacity (3" resolution) - Release 1 - Research Data Australia

View Source
Preview of Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2 - CSIRO Data Access Portal, accessed August 5, 2025,
Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2 - CSIRO Data Access Portal, accessed August 5, 2025,
Direct Evidence Government

Geology | Norfolk Island National Park | Parks Australia, accessed August 2, 2025

View Source
Preview of Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2 | Datasets | data.gov.au, accessed August 5, 2025,
Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2 | Datasets | data.gov.au, accessed August 5, 2025,
Contextual Support Methodology Source

Soil and Landscape Grid National Soil Attribute Maps - Total Nitrogen (3" resolution) - Release 2 | Datasets | data.gov.au, accessed July 30, 2025

View Source
Preview of Soil and Landscape Grid of Australia - CSIRO, accessed July 30, 2025,
Soil and Landscape Grid of Australia - CSIRO, accessed July 30, 2025,
Contextual Support Methodology Source

Soil and Landscape Grid of Australia - CSIRO, accessed August 1, 2025

View Source
Preview of Sustainable development on Indigenous lands - Sustainability - The University of Melbourne, accessed July 30, 2025,
Sustainable development on Indigenous lands - Sustainability - The University of Melbourne, accessed July 30, 2025,
Contextual Support GreyLiterature

Sustainable development on Indigenous lands - Sustainability - The University of Melbourne, accessed July 30, 2025

View Source
Preview of The Secretary - Parliament of Australia, accessed July 30, 2025,
The Secretary - Parliament of Australia, accessed July 30, 2025,
Contextual Support Journal

The Secretary - Parliament of Australia, accessed July 30, 2025

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Preview of Tiwi Islands Indigenous Protected Area | Plan of Management 2023-2033, accessed July 30, 2025, ).pdf
Tiwi Islands Indigenous Protected Area | Plan of Management 2023-2033, accessed July 30, 2025, ).pdf
Contextual Support

Tiwi Islands Fire and Weed Management Plan 2021

View Source
Preview of Tiwi Islands Shows Indigenous Role in Future Forest Care - Wood Central, accessed July 30, 2025,
Tiwi Islands Shows Indigenous Role in Future Forest Care - Wood Central, accessed July 30, 2025,
Contextual Support GreyLiterature

Tiwi Islands Shows Indigenous Role in Future Forest Care - Wood Central, accessed July 30, 2025

View Source
Preview of Tiwi Plantation Corporation and Port Melville - Transparency Portal, accessed July 30, 2025,
Tiwi Plantation Corporation and Port Melville - Transparency Portal, accessed July 30, 2025,
Contextual Support

Forestry | Department of Agriculture and Fisheries

View Source
Preview of Tropical Rainforest (1993), accessed July 30, 2025,
Tropical Rainforest (1993), accessed July 30, 2025,
Contextual Support Journal

Tropical Rainforest (1993), accessed July 31, 2025,

View Source
Preview of Wet Tropics of Queensland - UNESCO World Heritage Centre, accessed July 22, 2025,
Wet Tropics of Queensland - UNESCO World Heritage Centre, accessed July 22, 2025,
Contextual Support GreyLiterature

Wet Tropics of Queensland - UNESCO World Heritage Centre, accessed July 23, 2025

View Source

Context

  • Region Australia
  • Biome Tropical & Subtropical Maritime Islands
  • Land Use Production Forestry
  • Assessment Pristine Reference
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 15 Mar 2026

Notes

Represents a shift from biologically-driven ecosystem to high-input, polluting system with risks of leaching and ecological imbalance.

Related Benchmarks

Other benchmarks in the AUS-TMI-FOR-SON family.

— mg/kg Moderate
Production Forestry · Pristine Reference · Forest
OptimalRange Active v2
2500 mg/kg Low
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MaximumOnly Active v1
1300 mg/kg Moderate
Production Forestry · Conservation Target · Forest
Point Active v1
— mg/kg Moderate
Production Forestry · Conservation Target · Forest
OptimalRange Active v1
1300 mg/kg Moderate
Production Forestry · Pristine Reference · Forest
Point Active v1
— mg/kg Moderate
Production Forestry · Pristine Reference · Forest
OptimalRange Superseded v1