Estimativas de biomassa para plantas de bambu do gênero Guadua/Biomass estimation for Guadua bamboo plants

The objective of this work was to fit equations for total biomass of Guadua bamboo plants and to compare adjustment of equations by linear regression with data mining technique. Thirty-eight culms of bamboo were used, in which the following variables were measured: diameter at breast height, stem di...

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Bibliographic Details
Published in:Revista Ceres 2014-11, Vol.61 (6), p.900
Main Authors: Mognon, Francelo, Corte, Ana Paula Dalla, Sanquetta, Carlos Roberto, Barreto, Tauane Garcia, Wojciechowski, Jaime
Format: Article
Language:Portuguese
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Summary:The objective of this work was to fit equations for total biomass of Guadua bamboo plants and to compare adjustment of equations by linear regression with data mining technique. Thirty-eight culms of bamboo were used, in which the following variables were measured: diameter at breast height, stem diameter, stem and its height. The stems were felled and weighed by using the destructive method. The actual biomass of 25 stems was used to fit the equations by the least squares method and 13 stems were used for the validation of the best equation. The fractions of biomass per compartment differ significantly among each other. The largest fraction of the biomass corresponds to the stem, representing 69.2% of the total, followed by rhizomes, leaves and branches, with 15.7%, 10.8% and 4.2%, respectively. The best fitted equation for total biomass showed a correlation coefficient of 0.93 and standard error of estimate of 15%.
ISSN:0034-737X
2177-3491