Resumo

LOPEZ, Hubert Gerardo; VAIDES, Edwin Estuardo  e  ALVARADO, Alfredo. Evaluation of carbon fixed in the aerial biomass of teak plantations in Chahal, Alta Verapaz, Guatemala. Agron. Costarricense [online]. 2018, vol.42, n.1, pp.137-153. ISSN 0377-9424.  http://dx.doi.org/10.15517/rac.v42i1.32201.

This research estimated the amount of carbon stored in teak plantations (Tectona grandis L.f.) of 14 and 15 years old in Chahal, Alta Verapaz, Guatemala. The method was a sample collections proposed by the International Winrock Institute and then to generate a mathematical model to estimate the above-ground biomass. The International Winrock Institute method consists of breaking down and sectioning trees of different diametral classes and then measuring the variables: diameter at breast height -DBH-, total height -Ht-, crown diameter -CD-, greater diameter of the log -D1-, smaller diameter of the log -D2-, length of log -L-, branches, twigs and leaves fresh weight and taking sub samples for laboratory analysis. The carbon content was estimated in a self-analyzer of carbon and nitrogen and the wood density and the factor of expansion of the biomass in the chemical laboratory of the Rafael Landivar University, headquarter of La Verapaz. A model of biomass prediction of the stem was estimated, that considered the DBH (p<0.0001) and total height (p=0.0008), with an adjusted r2 of 0.89. The carbon stored in the 14 and 15 years old teak plantation was 108.36 y 151.37 t.ha-1 respectively.

Palavras-chave : Carbon capture; aerial biomass; forest plantation; teak.

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