Modeling of the commercial volume stock in an Ombrophilous Forest in the Southwest of the Amazon

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dc.creatorCysneiros, Vinicius Costa
dc.creatorMachado, Sebastião do Amaral
dc.creatorPelissari, Allan Libanio
dc.creatorFigueiredo Filho, Afonso
dc.creatorUrbano, Edilson
dc.date2016-12-23
dc.date.accessioned2017-08-01T20:15:09Z
dc.date.available2017-08-01T20:15:09Z
dc.date.issued2017-08-01
dc.descriptionThe abundance of tree species in tropical rainforests with different shapes and dimensions, as well as the great structural diversity, makes difficult the employment of form factors or equations to estimate individual volumes. However, the employment of equations at the population level makes possible to predict the volumetric stock per unit of area from forest attributes, excluding the necessity of individual tree volume evaluation. Thereby, the aim of this study was to select variables, fit statistical models and propose stand equations to estimate total and exploitable commercial volumes in an Amazon forest under concession regime. For this, variables commonly measured, like density and basal area, were inserted on traditional commercial volume models; besides the application of variables that considered the diversity and forest structure on models generated by the Stepwise process. After analysis, it was observed that the models obtained through Stepwise propitiated more precise estimation of the volumetric stock, reducing estimation errors and reducing problems with heteroscedasticity of residuals. The insertion of variables that express diversity and forest structure on the equations, like Shannon’s and diametric variation indices and the commercial trees ratio, contribute to predictions’ improvement, especially for the exploitable commercial volume, being recommended for the precise evaluation of timber potential of areas under Amazon forest concession.
dc.formatapplication/pdf
dc.identifierhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/1411
dc.identifier.urihttps://repositorio.ufla.br/handle/1/14513
dc.publisherCERNE
dc.publisherCERNE
dc.relationhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/1411/956
dc.sourceCERNE; Vol 22 No 4 (2016); 457-464
dc.sourceCERNE; Vol 22 No 4 (2016); 457-464
dc.source2317-6342
dc.source0104-7760
dc.subjectAmazon forest; Volume equations; Diversity; Forest structure
dc.titleModeling of the commercial volume stock in an Ombrophilous Forest in the Southwest of the Amazon
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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