Abstract

MARTINEZ LUNA, José Efraín et al. Allometric equations to estimate carbon in seedlings of Pinus hartwegii Lindl. Rev. mex. de cienc. forestales [online]. 2020, vol.11, n.60, pp.144-160.  Epub Dec 09, 2020. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v11i60.726.

High mountain forests provide essential ecosystem services, the most important of which is the storage of carbon dioxide (CO2), one of the leading greenhouse gases (GHG) which cause global warming. Quantifying CO2 in this kind of ecosystems would help to understand how they work and how they help to mitigate climate change. The aim of this study was to adjust the allometric equations for Pinus hartwegii in reforestation plantations in the Izta-Popo National Park using variables of easy measurement to relate them to biomass; these variables were base diameter, total height and height to the first live branch. For this, 90 seedlings were selected and the biomass of each one was calculated, as well as the biomass of each component: foliage, branches, stem and root. Carbon content was calculated to determine the amount of this element captured in the seedlings. The resulting equation for the diameter at the base was B=0.0092*DB 2.7226, with a coefficient of determination of R 2=0.9521. The equation for the total height was B=0.7546*h T 2.5819, with a coefficient of determination of R 2 = 0.8644. The height variable at the first live branch obtained a low coefficient of determination, R 2=0.3203. The average accumulated carbon for the seedlings of this study was 50.81 %.

Keywords : Total height; carbon,; CO₂; base diameter; Pinus hartwegii Lindl.; plantations.

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