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Usos da terra e potencial de regeneração natural da vegetação nativa na bacia do rio Apeú, Castanhal, Pará

2020; Linguagem: Inglês

10.22491//rca.2020.3176

2177-8760

Karen Cibelle Lameira da Silva, Wendell Vilhena de Carvalho, Ima Célia Guimarães Vieira, Denise Cristina Torres Costa,

Agricultural and Food Sciences

This study analyzes the use and cover land as well as the potential use of natural regeneration for forest restoration in the Apeú River Basin (BHRA), located in the Bragantina region in Pará, the oldest colonization region of the Amazon. Remote sensing and geoprocessing techniques were used for the mapping and classification of the Landsat-8 satellite image of the year 2017. Data treatment and analysis, preparation and editing of the use and coverage map were performed using ArcGis version 10.1. Areas with natural regeneration represent more than 18%, considering dirty pasture and secondary vegetation, and are considered areas under the process of succession. Little over 20% of the areas used for agricultural use and 20% of areas with exposed soil were found, which is due to increasing urbanization. The BHRA analysis shows that conserved and degraded primary forests dominate 47% of the basin territory. Thus, the percentage of secondary vegetation and dirty pasture indicates that the region has average potential for natural regeneration for restoration purposes.