J. For. Sci., 2005, 51(10):458-467 | DOI: 10.17221/4579-JFS

Influence of stand density on Zn and Cu concentrations in beech leaves

M. Barna1, J. Machava2
Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovak Republic
1 Faculty of Forestry, Technical University Zvolen, Slovak Republic
2

The paper deals with the response of leaves in a beech stand to opening after shelterwood cutting of various intensity (stocking of 0.3, 0.5, 0.7, 0.9) performed in 1989. The research was running in 1996-1997, on dominant, codominant and subdominant sample trees representing the mean stand diameter on all the examined plots. The obtained data were compared separately for the leaves from the upper, medium and lower crown thirds. In some cases, there has been confirmed statistically significant influence of the cutting strength and other studied factors on Zn and Cu concentrations - at a significance level of α = 0.05. We found significant influence on the concentrations of the analysed elements, their total amounts (depending on the relevant amounts of leaves on the plots) and their amounts in leaves of unit trees. This paper is a continuation of the previous work focussed on Mn and Fe concentrations in beech leaves.

Keywords: Fagus sylvatica L.; leaf; concentration; zinc; copper; shelterwood cutting

Published: October 31, 2005  Show citation

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Barna M, Machava J. Influence of stand density on Zn and Cu concentrations in beech leaves. J. For. Sci. 2005;51(10):458-467. doi: 10.17221/4579-JFS.
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