Structure of the tree community in agroforestry systems in Zona da Mata Rondoniense

Abstract

Currently, a phytosociology is based on understanding the dynamics of tropical forests, determining
successional trends in ecosystems. Among agroecosystems with tropical forests,
agroforestry systems are alternatives to family agriculture, reconciling forest conservation and
human communities. The objective of this study was to evaluate a floristic and phytosociological
composition of two agroforestry systems in Zona da Mata Rondoniense. Frequency,
dominance, importance value index, cover value, mean tree height, Shannon diversity index,
and Pielou equability were evaluated. A total of 1,343 individuals belonging to 31 species were
sampled. The diversity obtained in SAF A was 0.80 and in SAF B it was 0.77. Both systems
presented Pielou equability equal to 0.12, demonstrating low values of diversity and equability,
reflecting the predominance of Hevea brasiliensis and Theobroma grandiflorum.