Estimación del carbono almacenado en una plantación de Tectona grandis L. f. mediante ecuaciones alométricas
DOI:
https://doi.org/10.29298/rmcf.v11i57.550Keywords:
Carbon dioxide, climate change, biomass expansion factor, allometric model, forest plantations, Tectona grandis L. f.Abstract
Carbon dioxide (CO2) is the main anthropogenic greenhouse gas (GHG) in the atmosphere. The objective of the research described below was to estimate the carbon stored from mensuration variables and allometric equations in a Tectona grandis plantation in Michoacán, Mexico. Thus, a mathematical model was adjusted using the Model procedure and Gauss-Newton algorithm. The evaluation of the mathematical model was made from the sum of the square of the error (SCE), the root of the mean quadratic error (REMC) and R2adj in addition to the significance of its parameters. Compliance with the assumptions of normality, homogeneity of variances and independence of waste frequency was verified. The values of the parameters of the adjusted model were SCE=0.0399, REMC=0.0179 and R2adj=0.82. The Shapiro-Wilk test (0.96), White´s test (12.99) and the Durbin-Watson test (2.01) do not violate regression assumptions and are best for estimation of the dependent variable. The T. grandis plantation has a density of 1 666 trees ha-1, 220.29 m3 ha-1 of wood, basic density 0.59 g cm3 and stores 77.20 ton ha-1 of carbon at 11 years old. The adjusted equation allows to estimate in an indirect way the carbon stored in the trees, it can be adjusted for plantations with similar bioclimatic conditions, in addition it is feasible to incorporate it to the productivity systems to evaluate the potential of the commercial forest plantations as environmental services in order to mitigate the CO2 emissions.
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