Medina‐Roldán et al. (2026) Comparison of National and Regional Assessments of Soil Loss Rates by Water Erosion and Soil Erosion Control: An Application to the Tuscany Region (Italy)

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Identification

• Journal: Land
• Year: 2026
• Date: 2026-03-04
• Authors: Eduardo Medina‐Roldán, Gabriele Buttafuocò, Lorenzo Gardin, Romina Lorenzetti, Fabrizio Ungaro
• DOI: 10.3390/land15030417

Research Groups

Not explicitly stated in the provided text.

Short Summary

This study compares regional and European-scale Revised Universal Soil Loss Equation (RUSLE) applications for Tuscany, Italy, revealing that regional high-resolution data estimates significantly higher soil erosion rates and better identifies high-risk areas compared to broader European datasets.

Objective

• To compare the suitability of continental-scale versus high-resolution regional datasets for soil erosion assessment in Tuscany, Italy, using the Revised Universal Soil Loss Equation (RUSLE), and to evaluate their implications for regional planning and policy implementation.

Study Configuration

• Spatial Scale: Regional (Tuscany, Italy) and Continental (European).
• Temporal Scale: Annual (erosion rates expressed per year).

Methodology and Data

• Models used: Revised Universal Soil Loss Equation (RUSLE).
• Data sources: High-resolution regional data (TuscReg) and European-scale data from the European Soil Data Centre (TuscNat). Key factors analyzed include rainfall erosivity (R) and soil erodibility (K).

Main Results

• The mean estimated actual soil erosion rate was 58% higher in the regional assessment (10.7 Mg ha⁻¹ yr⁻¹) compared to the European-scale assessment (6.8 Mg ha⁻¹ yr⁻⁻¹).
• Spatial patterns of erosion diverged significantly, particularly in complex landscapes.
• In mountainous areas like the Apuan Alps, the regional assessment (TuscReg) estimated soil erosion control (potential minus actual erosion) to be over 500 Mg ha⁻¹ yr⁻¹ greater than the European assessment (TuscNat) for 30% of the area.
• Major differences were primarily driven by disparities in the rainfall erosivity (R) and soil erodibility (K) factors between the two datasets.
• EU-scale models can substantially underestimate erosion and the ecosystem service of erosion control in specific, high-risk environments.

Contributions

• Demonstrates the critical need for regional-scale data to accurately identify priority areas for soil conservation and set meaningful local thresholds, especially for implementing policies like the EU Soil Monitoring Law (Directive (EU) 2025/2360).
• Quantifies the significant underestimation of soil erosion and erosion control by broad-scale EU models when applied to specific, complex regional landscapes.
• Highlights that while EU-scale models provide a consistent overview, they are insufficient for detailed regional planning and policy enforcement.

Funding

Not explicitly stated in the provided text.

Citation

@article{MedinaRoldán2026Comparison,
  author = {Medina‐Roldán, Eduardo and Buttafuocò, Gabriele and Gardin, Lorenzo and Lorenzetti, Romina and Ungaro, Fabrizio},
  title = {Comparison of National and Regional Assessments of Soil Loss Rates by Water Erosion and Soil Erosion Control: An Application to the Tuscany Region (Italy)},
  journal = {Land},
  year = {2026},
  doi = {10.3390/land15030417},
  url = {https://doi.org/10.3390/land15030417}
}