Resumo

BENAVIDES SOLORIO, Juan de Dios et al. Allometric equations for estimating biomass and aerial carbon from Cedrela odorata L. in forest plantations. Rev. mex. de cienc. forestales [online]. 2021, vol.12, n.65, pp.89-111.  Epub 30-Ago-2021. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v12i65.791.

Several allometric equations were generated for biomass and carbon content for Cedrela odorata trees. Twenty-seven trees were selected from tree different forest plantations in the states of Jalisco and Colima. The best trees were carefully chosen for felling, partitioning, and measuring in the field. Samples from the stem, branches and foliage were collected and sent to the laboratory in order to estimate their biomass and carbon content. The results from each sample were used to the different sections of the tree. Some models were tested, and the final potential model used was 𝑌=𝑏·𝑥𝑘; the allometric biomass equation is AB=0.00341·ND 3.38248, and for carbon content is CC=0.001562·DN 3.389696; where: AB is the aboveground biomass (kg); and CC is the aboveground carbon content (kg), ND is the normal diameter (cm). Both equations exhibited a good fit with an R 2 of 0.978, and the tests of normality, heteroscedasticity and independence, show good confidence and guarantee of the models developed. The results suggest that the equations generated allow estimating the aerial biomass and the carbon concentration based on the normal diameter.

Palavras-chave : Cedar; normal diameter; heterocedasticity; potential model; forest plantations; dry weight.

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