FLORISTIC COMPOSITION AND STRUCTURE COMMUNITY OF A FOREST FRAGMENT OF SANTA MARIA-BRAZIL.
2009
Solon Jonas Longhi | André R. Terra Nascimento | Frederico Dimas Fleig | Jocelaine Bolzan Della-Flora | Rosane Amaral de Freitas | Leandro W. Charão
<p>This study describes the floristic composition and tree community structure of a forest fragment and discusses some of the dendrometric characteristics of its component species. This community belongs to the Decidual Seasonal Forest and is located in anta Maria, RS. Eighteen 200 m<sup>2</sup>-samples were systematically located in the fragment. In the sampled area 56 plant species, belonging to 46 genera and 28 botanical families, with CBH ³ 15 cm were measured. The families <em>Rutaceae, Rubiaceae, Flacourtiaceae </em>and <em>Myrsinaceae </em>were therichest in terms of both number of species and individuals. <em>Helietta apiculata, Casearia silvestris, Faramea marginata, Myrsine umbellata, Chomelia obtusa </em>and<em> Cabralea canjerana</em> were the most important species in the plant community studied. The tree heights varied from 3.5 m in the understory to 22 m for the emergent trees. Most trees live in low competition, as demonstrated by the h/d relation inferior to 1. The frequency distribution of circumferences shows that 42,25% of the individuals have a CBH between 15 and 25 cm, and only 4,25% of them have a CBH above 65 cm.</p>
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