Wood Science and Technology

, Volume 29, Issue 6, pp 441–449 | Cite as

A simple model for density of annual rings

  • K. Pernestål
  • B. Jonsson
  • B. Larsson


A simple model for density distribution within an annual ring is proposed. The model originates from the concept that a tree has two growing modes “early” and “late” wood mode respectively and that during a growing season there is transition from the first to second. An annual ring is described by six parameters. The use of the model is discussed and a number of possible “measures” are suggested. The advantages and limitations of the model is also discussed.


Simple Model Density Distribution Material Processing Annual Ring Wood Mode 


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • K. Pernestål
    • 2
  • B. Jonsson
    • 1
  • B. Larsson
    • 1
  1. 1.Department of BiometrySwedish University of Agricultural ScienciesUmeåSweden
  2. 2.Department of PhysicsUppsalaSweden

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