Dinâmica dos focos de calor nas fronteiras agrícolas SEALBA e MATOPIBA via mapeamento da densidade Kernel

Abstract

The agricultural frontiers, SEALBA (Sergipe, Alagoas and Bahia) and MATOPIBA (Maranhão, Tocantins, Piauí and Western Bahia) have been growing the production and export of grains and, concomitantly, the burnings and fires. Therefore, the objective is to evaluate the Fire Focus (FF) via environmental satellites in the agricultural frontiers SEALBA and MATOPIBA through the aid of Kernel density. The entire time series is based on all existing environmental satellites in BDQueimadas in the study period 2000-2022. Subsequently, a temporal analysis of the FF on which it was based on two periods was carried out: period 1 (P1) comprises the years 2012- 2018 (BEFORE COVID-19) and period 2 (P2) from 2019-2022 (DURING to COVID19), where it reached the point where FF, deforestation, agricultural expansion and the climate events of El Niño and La Niña collaborate for the dynamics of these consortia. With the evaluation of FF, it was observed that in the years 2012, 2015, 2019 and 2021 were the years in which both consortia obtained values of FF above average in relation to 2000-2022. In SEALBA, the state of Alagoas had great prominence in FF, mainly in the municipality of Coruripe and in MATOPIBA, the state of Maranhão. The correlation (r) and determination (R²) coefficients were high for the states of Maranhão, Piauí and Tocantins showing that a large part of MATOPIBA is advancing and in SEALBA he highlighted that Sergipe has been advancing over the years. Despite having great potential for expansion and diversification of crops, it shows the importance of the need for monitoring and the appropriate analyzes so that there is evolution and these are observed, for the soil, the quality of production and the health of the population. It is concluded that there are more studies and research that gave the analysis and monitoring of FF, where it is necessary to analyze the possible places of fire.