Journal of Forest Science, 2002 (vol. 48), issue 5
Structure and dynamics of stands of primeval character in selected areas of the Bieszczady National ParkOriginal Paper
A. Jaworski, Zb. Kołodziej, K. Porada
J. For. Sci., 2002, 48(5):185-201 | DOI: 10.17221/11874-JFS 
The investigations carried out in 1988 and 1998 on three permanent sample plots in stands of the East Carpathian beech forest (Dentario glandulosae-Fagetum) showed that in the growing up stage, the storeyed structure phase (Jawornik I stand), the stand volume increased from 547 m3/ha to 578 m3/ha while in the optimum stage, the ageing and regeneration phases (Jawornik II), it decreased from 631 m3/ha to 600 m3/ha, and in the growing up stage, the storeyed structure phase (Tworylczyk), from 611 m3/ha to 610 m3/ha. In all three stands beech dominated in the upgrowth....
Wild cherry (Prunus avium L.) breeding program aimed at the use of this tree in the Czech forestryOriginal Paper
J. Kobliha
J. For. Sci., 2002, 48(5):202-218 | DOI: 10.17221/11876-JFS
The paper widely introduces European experience in wild cherry breeding because it is the first one from a prepared series of articles aimed at wild cherry breeding in the Czech Republic. Beginnings of wild cherry breeding program for the Czech forestry are described. Plus trees were certified, seed orchards, clone archives, progeny and clonal tests were established. Clones were tested for fl owering of grafts in reproductive plantations. Progenies and clones were tested for growth parameters in progeny and clonal tests. Progenies and clones in every breeding plantation were tested for damage by aphids.
Monitoring of sawfl y ( Hymenoptera: Tenthredinidae Hymenoptera: Tenthredinidae ) infestation on spruceOriginal Paper
J. Holuša, O. Holuša
J. For. Sci., 2002, 48(5):219-224 | DOI: 10.17221/11877-JFS
A new method for evaluating damage caused by tenthredinids to Norway spruce stands is based on defoliation of the top whorls. A scale with four classes of defoliation was established that is easy to use. Defoliation can be displayed graphically on a grid map (Central European system), in which the map fi elds are delimited by parallels of latitude (6 by 6 minutes) and meridians (10 by 10 minutes) with an approximate size of 11.2 × 12.0 km. The degree of defoliation for an entire forest can be marked by circles of different size in the map field. The range and intensity of an infestation, and the change in defoliation from year to year are easily seen.
Relationship of necrotic disease of beech trunks to the sociological position of trees in the standOriginal Paper
A. Cicák, I. Mihál
J. For. Sci., 2002, 48(5):225-229 | DOI: 10.17221/11879-JFS
The authors analyse the results of investigations into the degree of necrotic damage of beech bark carried out in the whole territory of the Slovak Republic. The aim of these analyses is to answer a question about the relationship between the degree of necrotic damage of beech trunks and sociological position of trees in the stands studied. In the years 1995-2001, the degree of necrotic damage by tracheomycotic type to 6,579 beech trunks was evaluated in 54 selected localities in 33 orographic units. The lowest frequency (4.3%) of trees showing the 3rd and 4th degree of necrotic damage was found in the 1st tree age class. The frequency of damaged trees...
Risks of the wood-producing function of forests in areas with the special statute of protectionOriginal Paper
J. Simon
J. For. Sci., 2002, 48(5):230-236 | DOI: 10.17221/11880-JFS
Fulfilling the wood-producing function of forests can be understood as a removal of wood mass by logging operations from the forest environment usually for the purpose of its commercial use. The activity can be implemented in all stages of forest development. Positive economic effects are usually expected. Management in specially protected areas requires to concentrate on the preferential fulfi lment of protection objectives in affecting the forest ecosystem. In this context, the use of the wood-producing function of forests is often comprehended as controversial. But it has been proved that the maintenance of the forest condition corresponding to...