Resumo

MANZANO-MENDEZ, Filemón; PINEDA-HERRERA, Elizandro; VALDEZ-HERNANDEZ, Juan Ignacio  e  LOPEZ-LOPEZ, Miguel Ángel. Aboveground biomass of Vochysia guatemalensis in a rain tropical forest of the Chinantla, Oaxaca. Ecosistemas y recur. agropecuarios [online]. 2017, vol.4, n.11, pp.395-402. ISSN 2007-901X.  https://doi.org/10.19136/era.a4n11.1083.

The aboveground biomass of Vochysia guatemalensis Donn. Smith., a species of ecological and economic importance in the south-southeast of Mexico, was estimated. Seven trees of four diameter categories (10, 15, 20 and 25 cm) were felled and then separated by structural component. Samples were obtained from each component, weighed fresh and then oven dried. To determine the dry weight and estimate the biomass per component and total tree in each category, allometric equations were fitted using nonlinear regression techniques. The values of aboveground biomass per tree ranged from 8,264 to 105,099 kg in stems, from 0.329 to 21.442 kg in branches and from 0.393 to 9.609 kg in foliage. At tree level 79.68 % of the biomass was found in stems, 13.58 % in branches and 6.72 % in foliage.

Palavras-chave : Allometric equations; foliage; stem; fresh and dry weights; branches.

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