Abstract
ABSTRACT The aim of this study is to analyze the factors that affect the occurrence of fires in the vegetation, in the area of the Serra do Brigadeiro State Park (PESB) and its surroundings, and through this information to establish the most appropriate methodology to generate a risk map for fires in the place. A risk cartogram for fires was developed with the help of the ArcGIS 10.1 software, by the generation of maps of slope, aspects and land use. These maps were intercrossed, enabling the determination of the areas most susceptible to fires. Tested methodologies varied in the form of assigning grades to each predictor class of fire as well as in the division of risk classes. According to the results, the assignment of notes to each predictor class, depending on the size of the burned area and taking into account the history of events, reflected the risk of fires in vegetation in the region more satisfactorily.
Highlights
IntroductionAccording to Gralewicz et al (2012), in the coniferous forests of Canada, even 20 years after a fire, the vegetation still seems to display its effect, showing a substantial reduction in the density and size as a whole and delaying the successional advancement in the affected area
The aim of this study is to analyze the factors that affect the occurrence of fires in the vegetation, in the area of the Serra do Brigadeiro State Park (PESB) and its surroundings, and through this information to establish the most appropriate methodology to generate a risk map for fires in the place
A risk cartogram for fires was developed with the help of the ArcGIS 10.1 software, by the generation of maps of slope, aspects and land use
Summary
According to Gralewicz et al (2012), in the coniferous forests of Canada, even 20 years after a fire, the vegetation still seems to display its effect, showing a substantial reduction in the density and size as a whole and delaying the successional advancement in the affected area. This post-fire recovery process may be even slower in other regions, such as in Scandinavia, for example, where Drobyshev et al (2012) observed the influence of fire even after 40 years of its occurrence. The reasons for these conflicts have been a lack of understanding and a lack of perceived benefits in the management plans in these areas, especially where traditional use coexists with different types of ownership and management (Fuentes-Santos et al, 2013)
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