Eucalypt clone modelling in agrosilvopastoral systems

Authors

  • Adênio Louzeiro de Aguiar Júnior Serviço Brasileiro de Apoio às Micro e Pequenas Empresas, Avenida Washigton Luiz, no 176, Gonzaga, CEP 11055-000 Santos, SP.
  • Silvio Nolasco de Oliveira Neto Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Carlos Pedro Boechat Soares Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Marcelo Dias Müller Embrapa Gado de Leite, Rua Eugênio do Nascimento, no 610, Dom Bosco, CEP 36038-330 Juiz de Fora, MG.
  • Amana Magalhães de Matos Obolari Universidade Federal de Viçosa, Departamento de Engenharia Florestal, Avenida Peter Henry Rolfs, s/no, Campus Universitário, CEP 36570-900 Viçosa, MG.
  • Leonardo Henrique Ferreira Calsavara Empresa de Assistência Técnica e Extensão Rural do Estado de Minas Gerais, Rua Capitão Anselmo, Vila Mendes, no 400, CEP 36330-000 Coronel Xavier Chaves.

DOI:

https://doi.org/10.1590/S1678-3921.pab2022.v57.27039

Keywords:

crop-livestock-forest integration, genetic material, tree component, volume production

Abstract

The objective of this work was to evaluate height-diameter, volumetric, and taper models to estimate the height, volume, and bole profile of trees of eucalypt clones (Eucalyptus grandis × Eucalyptus urophylla) in an agrosilvopastoral system. Data were collected from permanent plots in an eight year-old agrosilvopastoral system, composed by three eucalypt clones (VE01, VE06, and VE07), located in the municipality of Coronel Xavier Chaves, in the state of Minas Gerais, Brazil. Two height-diameter, three volumetric, and four taper models were fit to the data of each clone and compared to each other, in order to select the best-fitting one. The equations fitted well to the observed data, and those of the models of Campos, Schumacher-Hall, and Garay stood out as the best ones. In addition, Graybill’s F-test showed that the height-diameter and volumetric equations must be fitted separately for each genetic material. The model of Garay was the best taper model to estimate the bole profiles of all clones using a single equation.

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Published

2022-05-18

How to Cite

Aguiar Júnior, A. L. de, Oliveira Neto, S. N. de, Soares, C. P. B., Müller, M. D., Obolari, A. M. de M., & Calsavara, L. H. F. (2022). Eucalypt clone modelling in agrosilvopastoral systems. Pesquisa Agropecuaria Brasileira, 57(Z), e02547. https://doi.org/10.1590/S1678-3921.pab2022.v57.27039

Issue

V.57, Jan./Dec., 2022 :Continuos publication

Section

FORESTRY