PHYTOSOCIOLOGICAL ANALYSIS OF SOME REMAINING NATURAL STANDS IN THE ALTO URUGUAI FOREST, BETWEEN THE RIVERS IJUÍ AND TURVO, RIO GRANDE DO SUL STATE- BRAZIL

• Autor(a) principal: Vaccaro, Sandro
• Data de Publicação: 1999
• Outros Autores: Longhi, Solon Jonas
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/309
• topic: Phytosociology; Deciduous seasonal forest; Alto Uruguai.

In order to describe the floristic composition and the present struture of the natural vegetation eight 15x 100m plots were laid down in the Alto Uruguai Forest, between the rivers Ijuí and Turvo, in the countries of Roque Gonzales, Porto Lucena, Porto Xavier, Alecrim, Tuparendi, Horizontina, Crisciuma e Três Passos, state Rio Grande do Sul, southern Brazil. In the staltments were considered all the alive trees with the circunference at the chest high or equal 30 cm high, where would measure circunference, high of the fuste and top high. Were samples 588 individuals chered in 26 families, 53 generals and 66 species. The most important families were Leguminosae, Boraginaceae and Spingaceae and the most important species were Patagonula americana, Diatenopteryx sorbifolia, Helietta longifoliata, Luehea divaricata, Holocalyx balansae, Chrysophyllum gonocarpum. The phytosociological structure was found to be severely modified with respect to the original or ancient structure.