WPS 224 Variability of wood within species

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Last updated 9:49 AM on 6/5/26
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5 Terms

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Critical structures in physical characteristics of wood

  • Density

  • Growth rate

  • Length of fibres

  • Cell wall thickness

  • Cellulose-to-lignin ratio

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Variability within a tree

  • All dimensional & physical characteristics of wood within trees are variable.

  • Can be related to radial and axial position of sample.

  • Can vary over one growth ring or many.

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Pulp quality AND density variables

  • Percentages of cell types

  • Cell dimensions

  • Cell wall structure

  • Ratio of cellulose to lignin

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Measurable variables causes

  • Changes in cambium as tree ages

  • Genetics

  • Environmental factors

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