Contenido de carbono en un bosque de tierra firme del resguardo Nonuya-Villazul, amazonia Colombiana

Abstract

Implementation of REDD programs requires accurate estimates of forest carbon. This study reports biomass and carbon in a forest of the Nonuya-Villazul indigenous reservation (RVN) in the Colombian Amazon, based on a permanent plot of 6 ha. The local spatial variation of the biomass and the contribution of the undergrowth were evaluated, two factors that are rarely taken into account. A total average biomass of 336.1 ± 14.0 t.ha-1 was found; 11.5% is in the understory (DAP 1-10 cm) and 88.5% corresponds to trees with DBH ≥ 10 cm; large trees (DAP ≥ 70 cm) are few (4 ± 1 ha) and have a low contribution to total biomass (6.8%) compared to other tropical forests. The biomass is within the range reported for the Amazon basin, is superior to the Western Amazon and similar to the Colombian Amazon. Considering that the RVN has 208800 ha in unflooded forests, a total average of 31.0 Mt C (95% CI 29.1 - 32.04) was estimated. These results allow to locate the forests of the RVN in a global context and improve the forest carbon estimations in the Colombian Amazon.