Assessing wildfires susceptibility

lithology, vegetation, biomass, and lineaments in the Morro da Pedreira, Brazil, Minas Gerais

Résumé

Research Purpose: To identify how lithology, dry biomass, vegetation, topography, lineaments, and anthropogenic factors influence wildfire dynamics and determine fire susceptibility in the Environmental Protection Area Morro da Pedreira, providing technical support for environmental planning, prevention, and integrated fire management.
Methodology: The research was conducted using geoprocessing and remote sensing techniques. Dry biomass data and vegetation cover were analyzed, and photogeological analysis was performed to identify structural lineaments. The integration of these data enabled the mapping of areas with greater fire susceptibility and the understanding of propagation patterns. Additionally, spatial analysis of heat spot distribution was carried out in relation to the study area's access network, including trails and roads.
Findings: It was found that lineament orientation, lithology, vegetation, dry biomass, and terrain slope significantly influence fire propagation. A strong correlation was observed between heat spots and areas with greater accessibility, such as trails and roads, evidencing the contribution of human activities. The most susceptible areas were identified and mapped, providing a methodological basis for integrated fire management.
Originality/Value: The study expands knowledge about wildfire dynamics in the Southern Espinhaço Range, integrating natural and anthropogenic variables in a multidisciplinary approach. The results provide technical support for ecosystem conservation, biodiversity protection, infrastructure and local population safety, and contribute to the prevention of large wildfires that threaten natural resources.