Abstract

CARRILLO ANZURES, Fernando et al. Allometric equations for estimating biomass and carbon from the aerial part of Pinus hartwegii in Ixta-Popo National Park, Mexico. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.3, pp.681-691. ISSN 2007-0934.

To determine the biomass in trees of Pinus hartwegii and estimate the carbon content air, allometric equations with 29 trees of that species of Izta-Popo National Park, Mexico were calculated. The 57.9% of wet weight of biomass trees was 48.6% and this was carbon. The distribution of biomass in the trees was: 65.3% in the shaft, 23.8% at branches and 10.9% the foliage. The carbon content was distributed similarly: 64.9% in the shaft, 24.2% at 10.9% branches and the foliage. The adjusted model is of the form Y= bXk where the dependent variable (Y) or biomass carbon is expressed in kilograms and the independent variable taken the normal diameter 1.3 m (DN) expressed in centimeters. The parameters "b" and "k" model were obtained by linear regression by the method of least squares; "b" measures the intercept and "k" slope model. The resulting equation for estimating biomass was B = 0.0635DN2.4725 and carbon content: C= 0.0309 DN2.4722, in both the value of R2 was 0.98. It was possible to adjust the allometric equation for estimating biomass and carbon content of Pinus hartwegii with a high coefficient of determination. With the equation obtained was possible to determine that trees of this species concentrate most air bole carbon followed by the branches and finally the foliage.

Keywords : allometry; climate change; pine forest; store carbon.

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