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

M. Křepela, D. Zahradník and J. Sequens
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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

Journal of Forest Science, 2005, vol. 51, issue 6, 244-255

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.

Keywords: Norway spruce (Picea abies [L.] Karst.); stem shape; Bookstein coordinates; stem shape diameters; Procrustes tangent coordinates; principal components analysis (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:51:y:2005:i:6:id:4560-jfs

DOI: 10.17221/4560-JFS

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