Estrutura e Florística de Fragmento de Floresta Secundária na Planície Aluvionar do Rio Guandu, em Seropédica-RJ

The study of secondary forests has been a valuable tool for the conservation and management of natural resources. In this sense, an assessment of the secondary vegetation was spontaneously performed in the area of Guandu River plains. Records and collections were taken for trees with DBH equal or greater than 5 cm, and natural regeneration with diameters smaller than 5 cm and height greater than 1.30 m. In the 10 × 100 m sampling area, 131 trees of 20 different species were observed, where only 7 were found in natural regeneration state, indicating a significant changing progress in the dynamics of this fragment.