Soil Structure & Compaction
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 17 benchmarks together — the OptimalRange form drives the primary score, while 16 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
The final benchmark for Soil Structure & Compaction, representing the best available condition for agricultural crop production in Australia's Arid Shrublands & Stony Plains, is presented below in the required format for the scientific catalog. Indicator Name Reference Value Unit Source Title Source URL or DOI Confidence Level Short Notes Soil Structure & Compaction <1500 kPa Synthesized from multiple sources including GRDC guidelines on soil constraints and peer-reviewed studies on tillage impacts. Key sources: GRDC Deep Ripping Fact Sheet (2019); GRDC Physical Soil Constraints Fact Sheet (2022). Moderate This benchmark represents an achievable state of high ecological function in the critical subsoil rooting zone (10–40 cm depth) under long-term, best-practice regenerative agriculture (e.g., continuous no-till, controlled traffic farming, high stubble retention). It is set below the level where root growth becomes restricted.
Soil penetrometer resistance measured at field capacity, indicating mechanical impedance to root growth.
This benchmark represents the maximum soil penetrometer resistance at field capacity that supports healthy root growth and water infiltration in arid agricultural soils.
This benchmark is synthesized from multiple sources including GRDC guidelines and peer-reviewed studies, representing an achievable state of high ecological function under best-practice regenerative agriculture in the specified biome.
Sources (1)
Supporting Sources (29)
Additional references from the underlying research that informed this benchmark.
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View SourcePORTABLE PENETROMETER FOR AGRICULTURAL SOIL: SENSITIVITY TEST TO IDENTIFY CRITICAL COMPACTION DEPTH - SciELO, accessed August 28, 2025
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