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Possible methods of Norway spruce (Picea abies[L.] Karst.) stem shape description

Author

Listed:
  • M. Křepela

    (Faculty of Forestry and Environment, Czech University of Agriculture in Prague, Prague, Czech Republic)

  • D. Zahradník

    (Faculty of Forestry and Environment, Czech University of Agriculture in Prague, Prague, Czech Republic)

  • J. Sequens

    (Faculty of Forestry and Environment, Czech University of Agriculture in Prague, Prague, Czech Republic)

Abstract

The paper shows a possibility of using Bookstein coordinates for stem shape studies. Bookstein coordinates are simplified to stem shape diameters, for which tests of multidimensional normality, variance-covariance matrix homogeneity, equality of mean shape vectors and principal component calculation are carried out in sample plots Doubravčice 1 and Štíhlice. Principal components are also calculated for Procrustes tangent coordinates, presented in graphs, and the plots are compared. Doubravčice 1 and Štíhlice plots differ especially in age (70 and 30 years) while they do not differ in tree class representation.

Suggested Citation

  • M. Křepela & D. Zahradník & J. Sequens, 2005. "Possible methods of Norway spruce (Picea abies[L.] Karst.) stem shape description," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 51(6), pages 244-255.
    • Handle: RePEc:caa:jnljfs:v:51:y:2005:i:6:id:4560-jfs
    DOI: 10.17221/4560-JFS
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    References listed on IDEAS

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    1. M. Křepela & J. Sequens & D. Zahradník, 2004. "A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 50(5), pages 211-218.
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    Cited by:

    1. M. Křepela & R. Petráš, 2006. "Comparison of Norway spruce (Picea abies [L.] Karst.), Scots pine (Pinus sylvestris L.) and European larch (Larix decidua Mill.) stem shape by means of geometrical methods," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 52(8), pages 337-347.

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    1. M. Křepela & R. Petráš, 2006. "Comparison of Norway spruce (Picea abies [L.] Karst.), Scots pine (Pinus sylvestris L.) and European larch (Larix decidua Mill.) stem shape by means of geometrical methods," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 52(8), pages 337-347.

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