Journal of Forest Science, 2008 (vol. 54), issue 2
Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid ¦l±ski and Beskid Żywiecki Mts. from the aspect of their nutrition status
J. Barszcz, S. Małek
J. For. Sci., 2008, 54(2):41-48 | DOI: 10.17221/798-JFS 
The aim of the present research was to determine the stability of spruce stands in the areas of threat to forest stability in the Beskid ¦l±ski and Beskid Żywiecki Mts. in the light of their nutrition. In 2002 samples of soil and of one- and two-year-old spruce needles were taken from sample plots representing various degrees of the threat of disintegration to stands. The following factors were determined in soil: reaction, exchangeable acidity, content of exchangeable cations: Ca2+, Mg2+, K+ and Na+ and the total content of macroelements: C, N, S, Ca, Mg, K and Na. Very small amounts of alkaline cations...
Air pollution load and stand nutrition in the Forest District Jablunkov, part Nýdek
R. Novotný, Z. Lachmanová, V. ©rámek, L. Vortelová
J. For. Sci., 2008, 54(2):49-54 | DOI: 10.17221/797-JFS
Concentrations of air pollutants measured by passive samplers, atmospheric deposition to forest ecosystems, soil water chemistry, nutrient content in the soil and foliage were all measured within a study of the causes of forest decline in Nýdek Forest Range, Jablunkov Forest District (Silesian Beskids). Declining Norway spruce stands are situated in a region of historically high air pollution load, mainly from the Třinec and Ostrava agglomeration. Air pollution significantly decreased in the second half of the 1990s. Forest soils showing the insufficiency of main nutrients remain today as the main factor affecting the forest vitality. The situation...
Yellowing of Norway spruce stands in the Silesian Beskids - damage extent and dynamics
V. ©rámek, M. Vejpustková, R. Novotný, K. Hellebrandová
J. For. Sci., 2008, 54(2):55-63 | DOI: 10.17221/795-JFS
In recent years, the Czech part of the Silesian Beskids has been affected by strong yellowing of Norway spruce stands and gradual decline of individual trees. Similar damage has also been observed in the neighbouring parts of Poland and Slovakia. The article presents the results of an investigation in the Forest District Jablunkov - part Nýdek. To evaluate the situation, monitoring plots were established and a regional survey was carried out together with tree-ring analysis. The results show a mosaic distribution of damage in the region studied, independent of the altitude and forest type. Defoliation was lower in 20-40 years old stands. Even these...
A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov Pass
P. Fiala, D. Reininger, T. Samek
J. For. Sci., 2008, 54(2):64-72 | DOI: 10.17221/796-JFS
A survey of forest nutrition was carried out in Natural Forest Region (NFR) No. 40 Moravskoslezské Beskydy. The reason for this survey was the gradually worsening state of forest stands in this region and especially in a part of it - in the Jablunkov Pass. Air pollution was the suspected cause of the unfavourable development. According to methodology established for the survey of forest nutrition, the samples of soil and assimilatory organs were collected at 375 sampling sites. The spatial distinctness of Jablunkov Pass was expressed on the basis of selected soil characteristics (quantity of organic material, exchangeable pH, content of total nitrogen,...
Forest transport roads according to natural forest regions in the Czech Republic
J. ®áček, P. Klč
J. For. Sci., 2008, 54(2):73-83 | DOI: 10.17221/799-JFS
Important parts of the forest sector are forest engineering constructions and capital construction of forest road network which improve the optimal management of forests and forest stands and their reasonable opening by a forest road network. The basic frameworks of forest road network are forest transport roads of various grades and categories. The paper discusses the basic parameters of forest transport roads such as the length of forest transport roads and their density outspread to the area of a particular district above all. The conditions of forest opening in 41 Natural Forest Regions of the Czech Republic and in the Czech Republic as a whole...