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Title: Recovery of above-ground tree biomass after moderate selective logging in a central Amazonian forest
Authors: Otani, Tatsuya
Lima, Adriano José Nogueira
Suwa, Rempei
Amaral, Márcio Rogério Mota
Ohashi, Shinta
Pinto, Alberto Carlos Martins
Santos, Joaquim dos
Kajimoto, Takuya
Higuchi, Niro
Ishizuka, Moriyoshi
Issue Date: 2018
metadata.dc.publisher.journal: IForest
metadata.dc.relation.ispartof: Volume 11, Número 3, Pags. 352-359
Abstract: We examined the recovery and dynamics of living tree above-ground biomass (AGB) after selective logging in an Amazonian terra firme forest managed by a private company. The forest consisted of 24 blocks (including one set aside for conservation) selectively logged in different years on a managed schedule. Trees ≥10 cm in diameter at breast height (dbh) were surveyed in 2006 in 192 0.25-ha plots, in 2010 in 119 plots, and in 2012-2013 in 54 plots. A logistic growth model factoring in logging dynamics and mean AGB of a block in these years was established. Referencing the mean AGB of the unlogged forest, the model indicated that the logged forest would take on average 14 years to regain its preharvest AGB after selective logging at 1.9 trees ha-1 (dbh > 50 cm). In 2010 and 2012-2013, the AGB increased significantly for small and large trees (10-20 cm and >60 cm dbh, respectively) in the logged forest. In contrast, it decreased significantly for medium-sized trees (30-50 cm dbh) in the unlogged forest. Comparisons with the previous studies mainly conducted in the other regions of Amazon suggested that the estimated AGB recovery period with moderate logging intensity was almost appropriate and likely acceptable to forest managers. © SISEF.
metadata.dc.identifier.doi: 10.3832/ifor2534-011
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