Estudo fitossociológico de uma área arbórea arbustiva de caatinga no município de Vieirópolis – PB.

Abstract

The Caatinga covers 54% of the Northeast and is a vegetation complex which brings together very diílérent environments, different faces and diverse flora. The some Caatinga bíome with its socio-economia importante is the least protected âom the Brazilian biomes, their degradation by human action ultimately compromises increasingly natural resources and the sustainability of tais biome. In this pense, the study aims to diagnose which human Eactors inteúere with more intenso dynamics in vegetation structure in remaining Caatinga, thus allowing to propose mitigation measures to minimize the disturbance leveis in the áreas. To sample adult component, were installed 30 sampling units of 20 m x 20 m in a systematic way, where were all the individuais with CAP Z 6.0 cm. Within each sample unit were surveyed 1627 individuais in the adult woody component, they are over 16 species and lO plant families. The diversity index for adult individuais was 1.18 nats.individual-l . The área is at an early stage of succession evidenced by the higher occurrence of species succession of features and has low species richness, even ater more than three decades without exploitation.