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Modelling the ecological vulnerability to forest fires in mediterranean ecosystems using geographic information
Beatriz Duguy1, José Antonio Alloza, M Jaime Baeza
1Departament de Biologia Vegetal, Universitat de Barcelona, Barcelona, Spain. bduguy@ub.edu
Environmental Management
|October 12, 2012
Summary
This study developed a GIS-based model to assess ecosystem fire vulnerability in the Mediterranean. The model accurately predicts ecological vulnerability, aiding fire prevention and restoration strategies.
Area of Science:
- Ecology
- Environmental Science
- Geographic Information Systems (GIS)
Background:
- Forest fires are significant drivers of ecosystem change in the Mediterranean.
- Climate change exacerbates fire risk, necessitating tools to assess ecological vulnerability.
- Ecological vulnerability considers ecosystem susceptibility and coping capacity regarding fire impacts.
Purpose of the Study:
- To develop and validate an innovative GIS-based model for assessing ecosystem ecological vulnerability to fire.
- To evaluate vulnerability across different time scales (short-term soil degradation, medium-term vegetation changes).
- To support the design of effective fire prevention and restoration strategies in the Mediterranean region.
Main Methods:
- A GIS-based modelling approach was employed, integrating soil and vegetation components.
- The model evaluated ecological vulnerability at short-term (soil degradation) and medium-term (vegetation changes) scales.
- Model predictions were validated using Normalized Difference Vegetation Index (NDVI) in selected Spanish ecosystems.
Main Results:
- Spatially explicit maps of ecological vulnerability to fire were generated for Aragón and Valencia regions.
- Model performance was validated using NDVI as a proxy for green biomass.
- The model demonstrated satisfactory performance across shrubland and pine forest ecosystems.
Conclusions:
- The developed GIS model provides a reliable tool for assessing ecosystem fire vulnerability.
- The model's validation confirms its utility for informing fire management and ecological restoration.
- This approach is crucial for adapting to predicted climatic changes and mitigating fire impacts in the Mediterranean.
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