Análise dos incêndios combatidos em remanescentes de vegetação nativa no litoral norte da Paraíba

Abstract

The aim of this research is to analyze the fires fought by the Brigade REBIO Guaribas on the North Coast of Paraiba in fragments of native vegetation within five years. We used data from ROIs to analyze occurrences of fires and GIS techniques to analyze, through hexagonal cells, the study area to the detriment fires, protected areas, roads, rivers and indigenous lands. Analyses of cells (454 in total) resulted that 72 of the total (15.85%) and there were 32 occurrences of the total (7.04 %) there were recurrences of fire, and found that the percentage of these fragments and highways are quite significant, however the percentages in protected areas are low. Obtained the tendency of the occurrence of fire area by the classification map cell, which in descending order is SEMA I, SEMA III and SEMA II. After analyzing the ROIs can get the following informations: the greatest amount of acres burned occurred in the first year of analysis (175.88 ha), the period of the year with more occurrences of fires is between October and December, the period of day with more occurrences is between twelve and sixteen hours, the vegetation type most affected by the fires is the board (256.08 ha burned), more frequent and greater number of acres burned is because the burning of cane sugar (235.2 ha burned). Thus it is essential that REBIO Guaribas use this tool (ROIs) to support the development of plans for preventing and fighting forest fires.