Temporal evaluation of vegetation cover in the Antimary State Forest area using satellite images

Abstract

The amazon Forest is threatened by anthropic actions, in the state of Acre, forest fragmentation is mainly promoted by the advance of livestock and agriculture in the region. To mitigate the situation, the government has created conservation areas, however, even areas protected by legislation are subject to deforestation. Therefore, this study aimed to evaluate temporally changes in vegetation cover in the Antimary State Forest area. Scenes were evaluated, obtained through images from the Landsat 5, 7 and 8 satellites, from the years 1997, 2007, 2017 and 2022. The images were pre-processed in the Qgis 3.22 software and the land use classification was carried out considering the thematic classes: Forest Areas (1), anthropized areas (2) and water bodies (3). It was observed that over a period of 25 years, the native forest area of the conservation unit had a reduction of 6,381.5 ha, and the forest fragment process intensified between 2017 and 2022. It is noted that the Antimary State Forest is under strong pressure from anthropic activities and that there is a need to create mechanisms to mitigate deforestation in the area.