New publication puts soil aftercare as the third key component of successful restoration

This new third part of a three-part series by Dr R Neil Humphries examines how effective aftercare can support the long-term recovery and functioning of soils following mineral extraction.
The Institute of Quarrying (IQ) has published Soil Resource Considerations Part 3: Aftercare, a new guide designed to help mineral products professionals manage the recovery of replaced soils and achieve successful, sustainable restoration outcomes.
Written by the internationally recognised restoration specialist Dr R Neil Humphries, the publication completes IQ’s three-part Soil Resource Considerations series. Part 1 addressed the identification of soil resources, while Part 2 examined soil handling. Part 3 focuses on the aftercare required once soils have been replaced.
Soils are a finite natural resource and an essential component of restored mineral sites. Their condition influences whether land can support its intended future use, vegetation and ecosystem services. The new guide explains why replacing soil is not the end of the restoration process and why carefully planned aftercare is essential to rebuild soil structure, organic matter and biological function.

Julian Smallshaw, Head of Education and Standards at the Institute of Quarrying, said:
“This third publication completes an important series covering the identification, handling and aftercare of soil resources. Together, the guides provide industry professionals with a valuable framework for managing soils throughout the life of a mineral development and delivering more sustainable restoration outcomes.”
Soil Resource Considerations Part 3: Aftercare covers:

•    The legislative and policy context for soil aftercare across the UK
•    The commencement and duration of the statutory aftercare period
•    Soil structural and functional recovery
•    The influence of soil wetness, climate, topography and drainage
•    The recovery and accumulation of soil organic matter
•    The role of vegetation and soil organisms
•    The use of composts, manures and other organic materials
•    Monitoring, target-setting and annual aftercare reporting
•    The responsibilities, competencies and resources needed to deliver effective aftercare
•    A practical soil aftercare checklist for use during planning and implementation

The guide recognises the effects of changing weather patterns where aftercare strategies need to reflect current and predicted climatic conditions. Periods of excessive wetness or dryness can affect soil structure, drainage, organic matter and the timing of remedial operations.
It also considers whether the statutory five-year aftercare period is always sufficient. While the structure of replaced topsoil may recover relatively quickly under appropriate management, subsoil recovery can take considerably longer. Where complete recovery cannot be demonstrated during the statutory period, the guide describes a trajectory-based approach that uses measurable precursor characteristics to assess whether soils are progressing towards the intended outcome.

The publication stresses that soil professionals should lead on matters relating to soil recovery, supported by effective collaboration between operators, planning authorities, regulators, landowners and other specialists. It also highlights the importance of sufficient supervision, appropriate equipment and adequate funding throughout the aftercare period.

A baseline survey at the beginning of aftercare provides an “as-built” record of the restored soils and landform. Annual monitoring can then assess soil structure, wetness, organic matter and other relevant characteristics, helping site teams establish whether interventions are working or whether further remedial measures are required.

The guide is intended for quarry and restoration managers, soil specialists, environmental professionals, consultants, planners, regulators, landowners, and those studying or working within the mineral products sector.

Soil Resource Considerations Part 3: Aftercare is available as a free digital download for IQ Members and available to everyone via the physical edition that can be purchased here: https://shop.quarrying.org/collections/study-guides/products/soil-resource-considerations-part-3