Summary
This comprehensive review synthesises current understanding of how plant roots and associated soil biota create and stabilise soil structure in the rhizosphere through multiple physical, biological and chemical pathways. The authors highlight that rhizosphere processes persist and evolve after root death to an extent currently poorly understood, and identify critical gaps in assessment methods, in-situ examination, and scale integration. The paper advocates for combined imaging and isotopic approaches, with field-scale experiments spanning diverse soils and plant species, to fully harness the resilience potential of plant-soil interactions.
Regional applicability
The review's conclusions on root-driven soil structure formation and the role of soil biota are universally applicable, though UK-specific field research would be needed to validate findings across British soil types, climates and agricultural systems. The identified methodological challenges—particularly bridging laboratory and field-scale understanding—are pertinent to UK soil science and regenerative farming policy development.
Key measures
Soil structure formation mechanisms; rhizosphere processes; root-soil interactions; microbial activity; nutrient cycling; organic matter turnover; persistence of rhizosphere effects post-root death
Outcomes reported
The paper reviews current knowledge and novel insights into processes that drive the formation and stabilisation of soil structure in the rhizosphere, including root growth, rhizodeposits, root hairs, and soil microorganism activity. It identifies five key challenges and recommends future research directions combining imaging and isotopic approaches at field scale.
Topic tags
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