PHYTOSOCIOLOGY OF THE ARBORESCENT-ARBOREAL COMPONENT OF A SEASONAL FOREST IN URUGUAI RIVER VALLEY, BRAZIL

• Autor(a) principal: Grasel, Daniel
• Data de Publicação: 2017
• Outros Autores: Spezia, Manueli Blatt, Oliveira, Adriano Dias de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/26455
• topic: forest structure; sub-montane sub-formation; Seasonal Deciduous Forest.; estrutura florestal; subformação submontana; Floresta Estacional Decidual.

The degradation of forest areas in western Santa Catarina state, reflected in a reduced number of conserved areas that enable studies on the forest community structure, is important to create strategies for conservation, management and ecosystem restoration. The objective of this study was describe the structure of a forest remnant of Seasonal Submontane Deciduous Forest, in the municipality of São João do Oeste, Santa Catarina state. For the inventory where demarcated 102 samplings of 10 × 10 m, continuously arranged in a grid of 6 × 17 plots, in which were sampled all plants of the arborescent-arboreal sinusiae with perimeter at breast height (PBH) ≥ 15 cm. Occurred 1441.18 living trees and 93.14 standing dead plants per ha. The 79 species found belong to 61 genera distributed among 33 families, being the highest importance value index of Sorocea bonplandii, Nectandra megapotamica, Inga marginata, Ocotea diospyrifolia and Trichilia claussenii. The Shannon diversity index (H') was 3.21 and the Pielou equability (J’) was 0.735. The vertical structure of the sampled vegetation was divided into treelets (2-11 m), canopy (12-17 m) and emerging trees (18-25 m). The studied forest fragment is an important reference ecosystem for future conservation strategies, management and restoration of forests in the region.