Estrutura da vegetação lenhosa em dois fragmentos naturais de florestas inundáveis (impucas) no Parque Estadual do Araguaia, Mato Grosso

Abstract

Impucas are seasonally inundated forest fragments located in the transition between the Cerrado and Amazonian Forest biomes. The objective of this study was to evaluate and to compare the vegetation structure of two impucas under different conservation status located at Araguaia State Park (AST), Mato Grosso State: non-altered vegetation structure (NA) (12o19'11.2"S and 50o44'15.6"W) and altered vegetation structure (AL) (12o09'04.2"S and 50o49'37"W). It was delimited five transects subdivided into 50 permanent plots of 10x20 m. All woody individuals with diameter at breast height > 5cm were sampled. The NA impuca presented 28 families, 42 genera and 45 species and AL impuca 22 families, 31 genera and 33 species. Total density, basal area and Shannon-Wiener's diversity index were 2,177 ind.ha -1 , 35.23 m².ha -1 and 2.87 nats.ind -1