Avaliação espaço-temporal de focos de calor no sudoeste do estado de Goiás, Brasil

Abstract

The damage associated with fire events causes great loss every year to areas such as public health, economy and the environment. The present work aimed to quantify the hotspots within the municipality of Rio Verde - GO between January 2005 and December 2020 and to determine the areas with the highest incidences of fires. The land uses and occupations observed within the municipality were arable area in preparation (AEP), agricultural area (AAG), vegetation area (AVE) and area close to water bodies (APA). For all years of study, there was a greater area of coverage for AAG, followed by AEP, AVE and APA, respectively. Regarding the temporal behavior, the number of hotspots is increasing in the first years (2005 - 2011), then there is a decrease (2012 - 2016) and with a new increase in recent years (2017 - 2020). Regarding the seasons of the year, the dry period made up at least 75% of the total cases for each year. As for classes of land use and occupation, those that presented the highest numbers were AEP and AAG, respectively. From the present work, it was possible to conclude that the geotechnological tools proved to be highly efficient for spatio-temporal evaluation of fire events.