.

• Autor(a) principal: Waechter, Jorge Luiz
• Data de Publicação: 1998
• Outros Autores: Jarenkow, João André
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Biotemas (Online)
• Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/21930

The specific composition and community structure of the arboreal component in the peat forests of Taim were analysed by the point-centered quarter method. A total of only 30 sample-points were shown to be significant in the characterization of trees with a diameter greater than or equal to 10 cm at the diameter at breast height (DBH). The swamp forests of Taim present an impoverished number of tree species, the most important being, in decreasing importance value (IV), Erythrina crista-galli, Ficus organensis, Blepharocalyx salicifolius, Eugenia uruguayensis e Sebastiania brasiliensis. The Shannon index of diversity (H' = 1.886) is one of the lowest reported for Brazilian arboreal communities, probably affected by the southern latitude (lower temperatures) and waterlogged soils (oxygen deficiency). The forest structure is characterized by two clearly discontinuous layers which are composed of relatively high and vigorous trees (E. crista-galli and F. organensis) and of lower and thinner trees (B. salicifolius, E. uruguayensis e S. brasiliensis).