Identificação e possibilidade de manejo de espécies não madeireiras da vegetação secundária da microrregião do Guamá

Abstract

The Amazon region has extensive areas of secondary forests, which require studies to determine alternative uses of vegetation. With this in mind, the project "Sustainable Management of Secondary Forests on Rural Properties in the Micro-Region of Bragantina and Guamá" is being developed. The objective is to compare the structure and floristic composition and to evaluate the potential for utilization of non-timber species (fiber, artisanal, food) occurring in small rural producers' areas of capoeira, located in the municipality of Capitão Poço, Pará, with approximately 8 and 15 years of abandonment and with the same history of use. The inventory was carried out in a systematic way. In plots of 10mX 10m all trees with DBH greater than 10cm were measured. In 5cmX5cm sub-plots, individuals with height greater than 1.5m and DBH less than 10cm were inventoried; and in smaller sub-plots, of 2mX2m, all seedlings with height between 30cm and less than 1.50m were counted. The results indicate a floristic diversity per hectare of 47 families, 74 genera and 79 species in the 8 year old stand and 41 families, 72 genera and 81 species in the 15 year old stand. In the 8 year-old stand there were 3806 individuals/ha of Lacistema grandiflollium, 881 individuals/ha of Pera glabrata and 268 individuals/ha of Guatteria poepigiana. In the 15-year stand these values were: 300 ind/ha of L. grandiflollium, 3187 indlha of P. glabrata and 333 ind/ha of G. poepigiana. The abundance of these species and the high frequency of undergrowth in areas of migratory agriculture, justifies the adoption of management techniques that can favor their best use.