Journal of Forest Science, 2005 (vol. 51), issue 12
Soil properties as a component of predisposition factors of Norway spruce forest decline in the Hanušovická highland mountain zone
D. Vavříček, P. Samec, P. Šimková
J. For. Sci., 2005, 51(12):527-538 | DOI: 10.17221/4585-JFS 
Mature Norway spruce (Picea abies [L.] Karst.) stands affected by decline symptoms were selected in the northern part of the Hanušovická highland (Czech Republic) at Jeřáb Mt. foot and summit (1,003 m a.s.l.). Spruce stand (SS) 1 (700 m a.s.l.) was situated in conditions of the fir-beech forest altitudinal zone (FAZ). SS 2 (880-900 m a.s l.) was situated in conditions of the spruce-beech FAZ. Research plots (RPs) of the area 400 m2 were selected in the stands according to the different level of damage and stand diversity. On the basis of the complex soil analysis it was proved that the soil environment could be a part of stress...
Disturbances in variation of the annual ring width of Norway spruce in the Polish Western Beskids Mountains
S. Wilczyński, E. Feliksik
J. For. Sci., 2005, 51(12):539-547 | DOI: 10.17221/4586-JFS
Changes in radial increment of Norway spruce in 25 stands more than 100 years old were analysed. Stands were growing on sites of different exposure situated at 450-1,200 m above sea level in the Polish Western Beskids Mountains. In the mid-1990s a considerable increase in annual ring width was observed. The greatest increase occurred in trees growing at the highest altitudes. This phenomenon occurred after a long period of increment decrease at the turn of the 1970s. After 1990 as the annual ring width was increasing, the variation and amplitude of ring width also increased. The cause of a long-term increase in radial increment was the improvement...
The effect of auxinoid application on the planting stock root system
A. Bártová, O. Mauer
J. For. Sci., 2005, 51(12):548-558 | DOI: 10.17221/4587-JFS
The goal of the study was to verify the effect of growth substances from the group of auxinoids on the root system of European beech and Scots pine planting stock. The effect of growth substance application date (spring, summer dipping), the type of growth substance used (IBA, NAA), and the exposition to the growth substance (1, 2, 5 hours) were studied. The tests showed that the application of NAA and IBA did not stimulate the root system growth in Scots pine at any exposition of root systems to the growth substances. European beech exhibited a favourable effect of the 5-hour IBA exposition in the spring dipping. The summer dipping of European beech...
Can artificial wounding of beech stems induce necroses?
A. Cicák, I. Mihál
J. For. Sci., 2005, 51(12):559-563 | DOI: 10.17221/4588-JFS
The paper presents data on the induction of necroses after small injuries to beech stems caused by electrodes during measuring cambium electric resistance. Altogether 121 beech stems of tree class 1-3 (according to Kraft) were evaluated. Among 2,904 mechanical injuries in 121 stems evaluated (24 per stem), 155 injuries induced necroses, hence each 19th injury induced necrosis. Most stems (33.06%) showed one necrosis, few stems (4.96%) showed even four necroses. 28.93% of stems did not show any necrosis. In order to prevent the infection of wounds and subsequent induction of necroses the authors recommend to treat any wounds with a suitable...
Practical verification of food supply to game in conditions of large-scale shelterwood system
J. Feuereisel
J. For. Sci., 2005, 51(12):564-571 | DOI: 10.17221/4589-JFS
In the hunting district Hády (897 ha), which is operated by the Křtiny Training Forest Enterprise, 383 samples of biomass utilizable as wildlife forage were collected and analysed; they were also quantified on the basis of surface coverage of grass and woody undergrowth. Grass and herbaceous biomass production in forest stands was 180,740 kg (average 0.02 kg/m2), on road shoulders and other areas it amounted to 25,213 kg (average 0.150 kg/m2). The greatest diversity of plant species (72) was detected on the other areas. In total, forest and other areas provide 205,953 kg of utilizable grass and herbaceous biomass available during...