AVALIAÇÃO DA REGENERAÇÃO NATURAL EM UMA ÁREA DE APP

Abstract

The Cerrado is the second largest biome in Brazil, considered a biodiversity hot spot, being one of the richest and most threatened. Currently, there is an increase in the need to protect permanent preservation areas, and analyzing the potential for natural regeneration is essential as it makes it possible to understand the conservation status of the location. For the study in question, 25 plots were opened in an APP area (source) located at the Instituto Federal Goiano – Campus Rio Verde, distributed in 3 different transects (area 1 – Denser vegetation/ area 2 – diffusion area/ area 3 – recharge area). Within these plots, all shrub-tree individuals were sampled that had at least 1cm of DAS (diameter at ground height) or a minimum height of 10 cm, and that did not fit into the arboreal stratum, that is, CAP (Circumference at height from the chest to 1.30 cm from the ground) < 10 cm. 50 soil samples were also collected for moisture analysis and 75 samples for organic matter analysis. 255 individuals were sampled, belonging to 26 species, 24 genera and 18 families, where the Inga vera species has greater dominance and importance value compared to other species, being the only one to appear in the three height classes, thus having good breeding conditions, settle in the areas for a long period. The area has low floristic heterogeneity and uniformity (2.40 and 0.75). The multivariate analyzes found that the area gradients are short, with species overlapping, that is, the species are repeated in the plots. Therefore, a more homogeneous place between the three areas than between the plots. However, species-environment correlations were high in both axes.