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Impact of Tending Measures on Assortment Structure of Fellings in Central Croatian Beech Stands

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Author(s): PRKA, Marinko | KRPAN, Ante P.B.

Journal: Acta Silvatica & Lignaria Hungarica
ISSN 1786-691X

Volume: 6;
Start page: 171;
Date: 2010;
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Keywords: forest management | thinning | intermediate and final felling | timber standards | false heartwood

ABSTRACT
The effects of management of even-aged beech stands on the quality of beech timberassortments by type of cut were investigated in the region of Bjelovar. The research was carried outusing Croatian timber standards. Assortment tables were developed separately for thinning andintermediate felling, and separately for regeneration and final felling in accordance with theinterventions of management. The average shares of assortments maintained the same ratios by qualityclasses regardless of the applied standards (HRN or HRN EN). The research identified the problems inproduction of assortments, and justified the need for developing separate tables for thinning,intermediate felling, and for regeneration and final felling. Through forest management the quantityand quality of timber assortments may be oriented to a certain extent towards the production target.With the application of tending measures the value of the stand and timber assortments increases overtime. In economic respect, the development of false heartwood shows an opposite trend. Therefore acompromise must be achieved by proper management and determination of appropriate harvesting ageof beech stands.

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