Estimación de la biomasa aérea almacenada y del carbono retenido en especies representativas de la reserva forestal protectora, cuenca alta del Río San Francisco, Guaduas, Cundinamarca

Abstract

In this research, the above-ground biomass and carbon sequestered in species representative of the Protected Forest Reserve, the upper San Francisco River Basin, Chipautá trail, Guaduas (Cundinamarca) belonging to natural forests and forest plantations were estimated. The estimation of above-ground biomass in species belonging to natural forest was made based on 13 alometric equations available in the literature and generated for different types of forest, finally selecting the equation proposed for premontane humid forests; for species belonging to planted forest, this was estimated based on the plant biomass and the calculation of the biomass expansion factor (EBF) by means of forest inventories. In both cases, in order to quantify the carbon stored in biomass, a carbon content of 50% was assumed. It was found that the contribution of species to the biomass and carbon reserves is unequal, finding that for natural forest Clusia schomburgkiana with 3,93 t/0,1 ha and 1,96 t/0,1 ha and Quercus humboldtii with values of 3,09 t/0,1 ha and 1,55 t/ 0,1 ha, have the highest values of biomass and carbon respectively. These results are related to high basal area values and the presence of large individuals in the larger diameter categories. The lowest values were obtained by Neea cf. floribunda with 0,55 t/0.1 ha and 0,28 t/ 0,1 ha (3,8%) and Cyathea caracasana with 0,001 t/0,1 ha and 0,001 t/0,1 ha (0,1%) of biomass and carbon respectively. For planted forests, Lafoensia acuminata was found to accumulate with 38,20 t ha -1 and 19,0 t ha -1 and Quercus humboldtii with values of 25,80 t ha -1 and 13,0 t ha -1 have the highest values of biomass and carbon respectively. Trichanthera gigantea with biomass values of 5,60 t ha -1 and carbon of 2,80 t ha -1 was the species with the lowest biomass and carbon values recorded. The results obtained in this research are of special relevance, as they provide a solid base for the above-ground biomass and carbon sequestered stocks in a specific area of the country with few such studies.