Soil Water Infiltration Rate

AUS-ASP-AGR-SWI General Moderate confidence

Benchmark Value

10 mm/hr
Thresholds: Lower: 10, Upper: —
Direction: Higher is desirable ↑
Form: LowerThreshold

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

Evidence & Context

Therefore, an infiltration rate below 10 mm/hr can be considered a critical lower threshold.

Metric Definition:

Soil water infiltration rate in mm/hr below which soil hydrological function is severely compromised.

Benchmark Definition:

Critical lower threshold for soil water infiltration rate indicating severe degradation in arid shrublands agricultural crop production.

Justification:

Based on evidence from degraded soils with surface crusting and water repellency showing infiltration rates as low as 3.5–10 mm/hr.

Sources (2)

Preview of Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC, accessed August 5, 2025,
Australian dryland soils are acidic and nutrient-depleted, and have unique microbial communities compared with other drylands - PMC, accessed August 5, 2025, Journal

Root Structure and Functioning for Efficient Acquisition of Phosphorus: Matching Morphological and Physiological Traits

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Preview of Infiltration rate measurements in arid soils with surface crust - ResearchGate
Infiltration rate measurements in arid soils with surface crust - ResearchGate Journal

Infiltration rate measurements in arid soils with surface crust - ResearchGate

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Supporting Sources (3)

Additional references from the underlying research that informed this benchmark.

Preview of Comparing infiltration rates in soils managed with conventional and alternative farming methods: A meta-analysis | PLOS One, accessed July 6, 2025,
Comparing infiltration rates in soils managed with conventional and alternative farming methods: A meta-analysis | PLOS One, accessed July 6, 2025,
Contextual Support Journal

Critical review of the impacts of grazing intensity on soil organic carbon storage and other soil quality indicators in extensively managed grasslands - PubMed Central, accessed July 10, 2025,

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Preview of Infiltration rates and soil moisture in a groved mulga community near Alice Springs, arid central Australia: Evidence for complex internal rainwater redistribution in a runoff-runon landscape | Request PDF - ResearchGate
Infiltration rates and soil moisture in a groved mulga community near Alice Springs, arid central Australia: Evidence for complex internal rainwater redistribution in a runoff-runon landscape | Request PDF - ResearchGate
Direct Evidence Journal

Infiltration rates and soil moisture in a groved mulga community near Alice Springs, arid central Australia: Evidence for complex internal rainwater redistribution in a runoff-runon landscape | Request PDF - ResearchGate

View Source
Preview of supporting sustainable development - risks and impacts of plant ...
supporting sustainable development - risks and impacts of plant ...
Contextual Support Journal

Queensland Murray-Darling Freshwater Biogeographic Province ..., accessed July 21, 2025

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Context

  • Region Australia
  • Biome Arid Shrublands & Stony Plains
  • Land Use Agricultural Crop Production
  • Assessment Pristine Reference
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 21 Mar 2026

Notes

Soils functioning at or below this level are significantly degraded with impaired hydrological function.