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Phytosociological composition and floristic comparison of cerrado of Paraopeba flora - MG

A phytosociological study in the Cerrado "sensu strictu" of The Paraopeba Nacional Forest-MG was carried out, comparing the qualitative results with other samples. The Paraopeba National Forest suffered intense clearing in 1952, which motivated the phytosociological study of 1 hectare of woody vegetation and floristic comparison with others samples. Ten plots of 0.1ha (20x50m) were established and included in the study all trees with C30 > 15.7cm. A total of 1990 individuals/ha (total density) and 18.13m²/ha (total basal area) were recorded. The values of richness (73 species/38 families), of Shannon diversity (3.57) and the evenness (0.83) suggested great heterogeneity and low ecological dominance. Leguminosae and Vochysiaceae were the richest families in species. The group of dead trees reached the greater value of importance followed by Qualea parviflora, Pera glabrata, Erythroxylum suberosum and Qualea grandiflora. The floristic comparative analysis showed that the Atlantic Forest influenced the similarity values between Santa Bárbara´s Cerrado and the others. It was different for the Cerrado of Palmas, in which geographic distance was shown to be the most important factor influencing the floristic composition.

Cerrado stricto sensu; Similarity; Phytosociology; Natonal Forest (FLONA) of Paraopeba


Sociedade de Investigações Florestais Universidade Federal de Viçosa, CEP: 36570-900 - Viçosa - Minas Gerais - Brazil, Tel: (55 31) 3612-3959 - Viçosa - MG - Brazil
E-mail: rarvore@sif.org.br