Estimación de cantidad de carbono fijo almacenado en la madera de dos especies forestales comerciales en la provincia de Napo y Chimborazo.

Abstract

This research aimed to estimate the amount of carbon stored in the wood of two commercial forest species in the provinces of Napo and Chimborazo. To determine the stored carbon content, 3 wooden specimens were taken per section (base, intermediate and top of the stem) from 4 trees for each species, having a total of 9 specimens per tree and 36 specimens per species. Botanical samples were collected, where after being used also in the pressing technique, dendrological identification was carried out in the ESPOCH “CHEP” herbarium. Regarding the determination of the moisture percentage, fixed carbon content and ash content, the protocols established by the technical regulations were followed: INEN 1160, ASTM D3175 and ASTM D-3172-00, respectively. The results were exciting in percentage and were carried out in the Chemistry laboratory of the Faculty of Natural Resources. On the other hand, the analysis of variance for the variables percentage of moisture and fixed carbon was carried out under a randomized complete block design (DBCA). The statistical data were processed in Infostat; Excel was used for the rest of the variables. The results showed that Eucalyptus globulus is the species with the highest percentage of humidity in the base and middle sections in relation to Piptocoma discolor, which is concentrated in the apex. For the amount of fixed carbon, Eucalyptus globulus was the one that presented the highest % in all sections. However, the two species studied showed high % in the base. Finally, it was concluded that the species with the highest fixed carbon content is Eucalyptus globulus with 11.04%. It is recommended to investigate commercial and non-commercial forest species to obtain information on the amount of carbon they contain.