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This study aimed to evaluate the effects of a polycyclic silvicultural system, in the stock and carbon dynamics of a commercial managed forest in Amazonas. Data used in this study are from 41 permanent plots of one hectare each, located in Annual Production Units B, C and Dby the Farm Dois Mil belonging to company Mil Madeiras Preciosa Ltda It is four measurements in UPA B (1996, 1998, 2001 and 2014) and three in UPAs C (1997, 2001 and 2014) and D (1998, 2001 and 2014), every tree with DBH≥15 cm was had its diameter measured. Also the following variables were measured: stem identification class, silvicultural treatment, canopy lighting, form of canopy, damage and the presence of lianas. For biomass quantification it was used equation to humid rainforest. Carbon stock above ground estimated is 165.7 t.ha -1 . The annual periodic increment in carbon is influenced by categorical variables crown lighting and form of canopy. In UPAs B and D, 17 and 16 years after logging the carbon is different from the stock before the logging. The UPA C features the same carbon stock that contained before the logging, considering the total population. In general, the management applied not influenced differently UPAs, the difference in the stock was only a function of time.

DINÂMICA DO CARBONO EM UMA FLORESTA MANEJADA CO MERCIALMENTE NO AMAZONAS