STRUCTURE AND DYNAMICS OF A MANAGED AREA IN TAPAJÓS NATIONAL FOREST
DOI:
https://doi.org/10.18542/ragros.v10i2.5131Abstract
The objective of this study was to evaluate the structure and dynamics of a tree community, before and after the forest intervention, in the Tapajós National Forest. To this end, 10 permanent plots of 50 x 50 m were settled randomly on an Annual Production Unity (1,000 ha) and measurements were performed before and after the intervention, in 2012 and 2015, respectively. The analysis showed that logging caused changes in the number of trees, basal area and volume, but did not affect the diametric distribution of trees. The annual average growth in diameter, considering all trees with DBH ? 10 cm, was approximately 0.34 cm.year-1. Trees with tops fully exposed to light, without lianas and undamaged, grew more than the shaded ones, with lianas and damages restricting its growth. Mortality was higher than the admission of new trees, reflecting a common negative balance in new explored areas. After the intervention, the studied forest managed to maintain its characteristics similar to the original forest.KEYWORDS: Forest growth, Forest management, Permanent plots.Downloads
Published
2018-11-19
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Section
Artigos Científicos