Soil Structure & Compaction

AUS-TDG-AGR-SSC General Moderate confidence

Benchmark Value

No specific value — see range

Range: 0 to 1500 kPa

Optimal Range: 0 to 1500

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 17 benchmarks together — the OptimalRange form drives the primary score, while 16 guard(s) constrain the result.

Contributing Benchmarks

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

Evidence & Context

An optimal penetrometer resistance range for fostering overall ecosystem health and ensuring sustainable crop production within Australian Temperate Dry Woodlands & Native Grasslands under regenerative management would be consistently < 1500 kPa, and ideally < 1000 kPa, throughout the main root zone when measured at field capacity.

Metric Definition:

Optimal range of soil penetrometer resistance (PR) for robust ecosystem health and sustainable crop productivity.

Benchmark Definition:

This benchmark represents the optimal soil penetrometer resistance range that supports healthy root growth and sustainable crop production in the Temperate Dry Woodlands & Native Grasslands biome of Australia.

Justification:

This range ensures minimal mechanical impedance to root growth and supports positive ecological processes characteristic of a healthy agroecosystem.

Sources (1)

Preview of Soil Structural Quality and Relationships With Root Properties in Single and Integrated Farming Systems - Frontiers

Soil Structural Quality and Relationships With Root Properties in Single and Integrated Farming Systems - Frontiers Journal

Soil Structural Quality and Relationships With Root Properties in Single and Integrated Farming Systems - Frontiers, accessed May 10, 2025,

View Source

Supporting Sources (9)

Additional references from the underlying research that informed this benchmark.

(PDF) Determining reference conditions for management and ...

Contextual Support GreyLiterature

(PDF) Determining reference conditions for management and ..., accessed May 10, 2025,

View Source

(PDF) Determining reference conditions for management and ..., accessed August 5, 2025,

Contextual Support

(PDF) Impacts of tree invasion on floristic composition of subtropical grasslands on the Bunya Mountains, Australia - ResearchGate, accessed May 19, 2025

View Source

(PDF) Improving soil physical fertility and crop yield on a clay soil in ...

Direct Evidence GreyLiterature

Dynamics of soil penetration resistance, moisture depletion pattern and crop productivity determined by mechanized cultivation and lifesaving irrigation in zero till blackgram - PMC - PubMed Central

View Source

Preview of Agronomic, Soil Quality and Environmental Consequences of Using Compost in Vegetable Production | Request PDF - ResearchGate, accessed May 10, 2025,

Agronomic, Soil Quality and Environmental Consequences of Using Compost in Vegetable Production | Request PDF - ResearchGate, accessed May 10, 2025,

Contextual Support Journal

Long Term Effect of Conservation Agriculture in Maize Rotations on Soil Total Organic Carbon, Physical and Biological Properties | Request PDF - ResearchGate, accessed May 10, 2025,

View Source

From soil health to agricultural productivity - University of Southern Queensland Repository, accessed May 10, 2025,

Contextual Support Journal

Role of earthworms in regenerating soil structure after compaction in reduced tillage systems | Request PDF - ResearchGate, accessed May 10, 2025,

View Source

Preview of Influence of tree species and forest land use on soil hydraulic conductivity and implications for surface runoff generation | Request PDF - ResearchGate, accessed May 10, 2025,

Influence of tree species and forest land use on soil hydraulic conductivity and implications for surface runoff generation | Request PDF - ResearchGate, accessed May 10, 2025,

Contextual Support GreyLiterature

Influence of tree species and forest land use on soil hydraulic conductivity and implications for surface runoff generation | Request PDF - ResearchGate, accessed May 10, 2025,

View Source