FLORISTIC SURVEY OF SHRUB-ARBOREAL COMPONENT OF CILIARY VEGETATION FRAGMENT IN PARAUAPEBAS RIVER

Abstract

ABSTRACT: The activities related to mining are causing huge changes in the structure and landscape dynamics, thus, the floristic diversity studies adopt important role in the development of tactics for biodiversity conservation. This study aimed to analyze the floristic composition in a lowland forest, located next to a degraded environment by mining activities, it was delimited 13 fixed plots of 10 x 10 m (10 m2) allocated systematically on riparian area along the river Parauapebas - PA. Were found 18 families distributed in 27 genera and 30 species. The families with the highest number of species were Fabaceae (11), Malvaceae (3) and Rutaceae (2). The genus with the highest species richness was Inga sp., With 3 different species, respectively. The Fabaceae family represented 32% of the collected species, Malvaceae 10% and 6% Rutaceae. Of the species, one was exotic, represented by Citrus limon (L.) Osbeck (lemon-Galician) and the individual with the largest representation was Sterculia chicha A. St. -Hil., present in most of the plots. Despite the fragment is threatened by human activities, floristic variety on site is quite diverse, with pioneer species, secondary and climax.KEYWORDS: Amazonian flora, Floristic composition, Wealth.