Composição e diversidade de plantas nos quintais agroflorestais da comunidade de Genipaúba, Santa Bárbara do Pará.

Abstract

Agroforestry backyards are considered the oldest systems of land use, being traditionally practiced by families that manage a diversity of plants around their homes for various purposes of use. The objective of this work was to evaluate the floristic composition and diversity of agro-forestry backyards in the community of Genipaúba in the municipality of Santa Bárbara in the state of Pará. Twenty backyards were evaluated and the selection of the backyards was done by convenience sampling. That has taken the availability of the backyard maintainers and the botanical identification, that it was done in loco. Phytosociological parameters (frequency and density) were used to estimate the horizontal structure of the tree stratum as ShannonWiener Index (H') and the Pielou Equability Index (J) were estimated to diversity index. We identified 84 plant species distributed in 49 botanical families, the family with the largest number of individuals was Arecaceae (130). The most common species among the backyards were Theobroma grandiflorum (cupuaçu) and Euterpe oleraceae (açaí) with the highest relative frequency (7.33%) and (6.47%), respectively. As for the life form of the species, trees had the highest predominance. The category of use that it has more stood out in the Genipaúba backyards was food. The average value of the Shannon-Wiener Index was 3.53, that it shows the agroforestry backyards of the Genipaúba community have a significant diversity of species.