Pesquisa Florestal Brasileira (Jun 2023)

Assessment of two methods on zoning wildfire propagation in Itacolomi State Park, Minas Gerais State, Brazil

  • Vicente Paulo Santana Neto,
  • David Marques Soares,
  • Thais Camargos da Silva,
  • Fillipe Tamiozzo Pereira Torres

DOI
https://doi.org/10.4336/2023.pfb.43e202102227
Journal volume & issue
Vol. 43

Abstract

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This study aimed to assess the wild fire propagation risk to wildfires in the Itacolomi State Park, in Minas Gerais State, Brazil, using GIS and to compare the efficiency of the incident solar radiation over the aspect variable. The following variables were used: land cover/use (LCU), slope (SLP), slope curvature (CUR), aspect (ASP) and incident solar radiation (SOL). The weights of each variable were calculated from the ratio between the total area and the burned area of each class in order to generate the fire propagation risk maps. Fire data from 2016 to 2019 were used for validation. When the moderate risk class was considered susceptible, inadequate precision was observed for both methods (ASP and SOL). On the other hand, when the moderate class was considered non-susceptible to fire, the results presented moderate accuracy. Furthermore, the methods using SOL and ASP showed similar results. The results can guide fire mitigation actions on the park.

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