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The Cerrado Biome is the second largest biome in Brazil, it has a rich diversity of fauna and flora, it no longer has its original coverage, even the protected reserves suffer from anthropic actions and invasive plants and animals. In addition, the cerrado has a diversity of habitats and numerous plant species that are at risk of extinction. Therefore, tools such as a floristic survey and a phytosociological study are used to study degraded areas that suffer from anthropic action and modified fragments. Thus, this work aimed to evaluate the floristic composition and structure of the shrub-tree community in a reserve area located at Instituto Federal Goiano. Fifteen systematized plots of 20x20m were established, spaced 10m apart and distributed in four transects, totaling 0.6 ha of sampling. All tree individuals with CAP ≥ 10 cm were numbered using aluminum plates. Circumference measurements were obtained using a tape measure and height was estimated. Classic phytosociological parameters were calculated. A total of 618 individuals distributed in 21 families and 41 species were sampled. Six individuals were not identified. The Shannon diversity index was 2.56 and the Pielou evenness was 0.69. It is concluded that the diversity of species found within the plots is much lower than it should be, with low species variability and the distribution of individuals is disproportionate.

The regeneration succeeds from the interaction of natural processes of rebuilding the forest ecosystem, it is considered one of the most promising tactics for restoring areas that have been degraded. Thus, studying them allows us to know a little about the way the forest will develop, since it provides the number of species it has and their distribution in the area. The objective of this work was to evaluate the potential and characteristics of natural regeneration in the recovery process of the forest forest at the IF Goiano - Rio Verde campus. For this survey, 15 plots of 5x5m were allocated. All shrub-tree individuals that had at least 10 mm in diameter at ground height (DAS) were sampled; or height of at least 50 cm and that did not meet the criterion for inclusion of the tree extract (CAP ≥ 10 cm).  Classic phytosociological parameters were calculated. A total of 707 individuals were sampled, belonging to 14 families and 23 species, with a predominance of the species Senegalia polyphylla (DC.) Britton & Rose, from the Fabaceae family, in almost all plots. Thus, it is concluded that the study area has low diversity and little species richness.