Análise fitossociológica estrutural e composição florística da área de proteção ambiental margem esquerda do rio Negro, Manaus - AM

Abstract

The present study describes the characterization and analysis of vegetation descriptors phytosociological Settlement Tarumã-Mirim, which is situated almost entirely within the Environmental Protection Area (APA) of the Left Bank of the Rio Negro, Sector Tarumã Açu - Tarumã Mirim. To determine the floristic composition and phytosociological parameters of vegetation, we considered three sampling areas, both within the boundaries of the area nesting Tarumã Mirim: plateau, and lowland campinarana. For sampling method was used for continuous plots where only the first installment was willing to chance. In plant community plateau were recorded 507 individuals with DBH less than 30 cm, distributed in 35 families, 64 genera and 96 species. The plant community of campinarana appears with 477 individuals distributed in 37 families, 72 genera and 95 species. And the plant community of shallow registered 408 individuals who were distributed in 32 families, 64 genera and 92 species. In plant community plateau, families were prominent: Sapotaceae, and Chrysobalanaceae Lecythudaceae. In plant community campinarana were: Fabaceae, Sapotaceae and Chrysobalanaceae. And in the lowland plant community were: Fabaceae, and Lecythidaceae Chrysobalanaceae. The calculation of the diversity index of Shannon-Wiener value of 2.96 resulted in the plant community plateau, 2.90 in plant community campinarana and 2.79 in lowland plant community. The studied forest environment has low species diversity possibly due to anthropogenic changes of the vegetation protection area suffered due to the activities of the residents of the settlement.