Determination of Wood Chemical and Anatomical Properties by Difuse Reflectance of Near Infrared

Authors

  • Washington Luiz Esteves Magalhães Embrapa Florestas
  • José Carlos Duarte Pereira Embrapa Florestas
  • Graciela Ines Bolzon Muñiz Universidade Federal do Paraná
  • Umberto Klock Universidade Federal do Paraná
  • José Reinaldo Moreira da Silva Universidade Federal de Lavras

Keywords:

Near infrared, pine, eucalyptus, chemical properties, anatomical properties

Abstract

Near infrared spectroscopy (NIR) and partial least square (PLS) were used to determine chemical and anatomical wood properties. Solid wood samples from seven eucalyptus and one pine species were  characterized for lignin content, total extractives, fiber length and diameter, cell wall thickness and heat  content. NIR spectra were obtained from wood flour  samples and used to generate calibrations for the  measured chemical and anatomical properties.  Relationships were good for lignin content and cell wall   thickness with coefficients of determination greater than  .9 and 0.8, respectively. The calibrations developed for lignin content had the highest coefficients of determination and show that it is possible to develop  eneral calibration for this important wood property across the tested eucalyptus species. Other  statistical tools should be studied for improvements in  the predictions of the measured properties.

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How to Cite

MAGALHÃES, Washington Luiz Esteves; PEREIRA, José Carlos Duarte; MUÑIZ, Graciela Ines Bolzon; KLOCK, Umberto; SILVA, José Reinaldo Moreira da. Determination of Wood Chemical and Anatomical Properties by Difuse Reflectance of Near Infrared. Pesquisa Florestal Brasileira, [S. l.], n. 50, p. 25, 2011. Disponível em: https://pfb.sede.embrapa.br/pfb/article/view/238. Acesso em: 25 apr. 2026.

Issue

No. 50 (2005): jan./jun.

Section

Articles

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