This study aimed to evaluate the resilience of aerial forest biomass, in four experimental areas in eastern Brazilian Amazon. For all areas after reduced impact cutting, it was evident that there is a great loss of biomass in all tree diametric classes, but much more evident in classes with a diameter above 50 cm in the first years after logging. The forest recovered its biomass value due to the growth of the species that remained there. After silviculturalsilviculture treatments with thinning of non-commercial trees after 9 years of exploitation, there is a further decrease in the value of biomass for all diametric classes. After the Tapajoós forest fire, there was no significant loss in biomass value between and within treatments.

Keywords: Forest dynamics, silviculture, neotropical forest, low impact forest exploitation