Environmental Rehabilitation and Restoration
Summary
Environmental rehabilitation and restoration encompass the repair of ecosystems degraded by human activity or natural disturbance, aiming to re-establish structure, function and resilience. Efforts range from stabilising eroded slopes with engineered or biotechnical substrates to rebuilding soils on former mine sites and decontaminating water bodies through plant- and microbe-based treatments. Approaches may be passive—removing stressors and allowing natural recovery—or active—employing soil amendments, vegetation planting and habitat engineering. Restored systems can deliver vital services: erosion control, water purification, carbon sequestration, biodiversity habitat, flood regulation and improved landscape connectivity. Success hinges on understanding site-specific soil and hydrological properties, microbial assembly, species interactions and landscape context. Financing mechanisms and policy incentives increasingly support restoration as a nature-based solution to climate mitigation and land-use challenges. Across forestry, mining, agriculture and urban settings, interdisciplinary collaboration and adaptive management drive progress, with monitoring frameworks ensuring that interventions meet ecological and social objectives over the long term.
Research from Nature Portfolio
Investigations into artificial soils for cut-slope rehabilitation have applied fractal and moment analyses to characterise particle-size distributions and aggregate structure. By linking fractal dimensions to clay, silt and sand fractions, and moment coefficients to porosity and moisture retention, substrate formulations can now be tailored to enhance cohesion, reduce erosion and improve revegetation success on engineered slopes. In parallel, studies of post-coal-mining reclamation soils have revealed that while bacterial community composition diverges from unmined references, enzymatic activities—such as β-glucosidase, urease and phosphatases—recover over time. Metagenomic and functional profiling demonstrate metabolic redundancy, indicating that essential soil processes can be maintained even as phylogenetic assemblages shift. These insights inform the design of engineered soil blends and microbial-inoculation strategies that accelerate soil development and plant establishment on former mine dumps.
Environmental Rehabilitation and Restoration publication trend
The graph below shows the total number of articles in environmental rehabilitation and restoration across all publications each year (not limited to Nature Index journals).
Technical terms
Artificial soil: Engineered substrate blends designed to restore vegetation on bare or disturbed slopes, often delivered by spraying or filling.
Fractal dimension: A statistical measure of particle-size complexity used to optimise substrate formulations for moisture retention and aggregate stability.
Metabolic redundancy: The capacity of diverse microbial taxa to perform similar functional roles, ensuring ecosystem processes persist despite compositional shifts.
Macroaggregate: A soil aggregate > 250 µm in size, whose stability is critical for erosion resistance and water infiltration.
Controlled-release fertiliser: A formulation that gradually releases nutrients over time, matching plant uptake and minimising leaching losses.
References
- The physico-chemical properties and structural characteristics of artificial soil for cut slope restoration in Southwestern China. Scientific Reports (2016).
- Structural and functional differentiation of bacterial communities in post-coal mining reclamation soils of South Africa: bioindicators of soil ecosystem restoration. Scientific Reports (2020).
- Microbial Functional Capacity Is Preserved Within Engineered Soil Formulations Used In Mine Site Restoration. Scientific Reports (2017).
- Mineral solubilizing microorganisms and their combination with plants enhance slope stability by regulating soil aggregate structure. Frontiers in Plant Science (2023).
- Effects of Planting Density of Poaceae Species on Slope Community Characteristics and Artificial Soil Nutrients in High-Altitude Areas. Sustainability (2023).
- Soil Substrate Characteristics for Planting Hole Greening Technology for High, Steep, Rocky Slope Vegetation in Semi-Arid Areas. Land (2024).
About these summaries
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