Resumo

GARCIA, CATALINA; SUAREZ, CAROLINA  e  DAZA, MARISELA. STRUCTURE AND FLORISTIC DIVERSITY FROM TWO FORESTS IN BUENOS AIRES, CAUCA, COLOMBIA. Rev.Bio.Agro [online]. 2010, vol.8, n.1, pp.74-82. ISSN 1692-3561.

Structure and floristic diversity were studied in two Andean forests in El Ceral and El Porvenir in Buenos Aires, Cauca, Colombia. The sampling process was performed by establishing one 0.5 hectare (20m x 250m) for each location. For both forests, botanical determination and record were taken for each species, also diameter at breast height (DBH) were measured for all trees thicker than 10 cm. Studied forests showns a diametric distribution of inverted "J" shape, which is an expression of forest dynamics. Also a schematic profile for each forest was drawn. For diversity estimation the Margalef, Menihnick, Shannon-Winner and Simpson indexes were calculated. Floristic similarity among both forests were assessed by Jaccard and Sorensen indexes. Species-area curve (floristic richness) did not show an inflection point, where new species were not found, due to the fact that most of them are rare species.

Palavras-chave : Andean forests; Cauca; Colombia; Forest structure; diversity.

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