Journal of Forest Science, 2005 (vol. 51), issue 1
Light distribution within forest edges in relation to forest regeneration
I. Schmid, K. Klumpp, M. Kazda
J. For. Sci., 2005, 51(1):1-5 | DOI: 10.17221/4538-JFS 
Light conditions were measured along six transects from 35 m inside of a mixed Norway spruce/Scots pine forest to an adjoining clear-cut in NW-Austria. Photosynthetic photon flux density (PFD) was recorded every minute of the day from 5:00 a.m. to 8:00 p.m. for three weeks in July. PFD decreases exponentially from the clear-cut to the interior of the forest following the gap fraction. Low light intensity classes (< 50 µmol photons m2/s) decrease from the stand towards the open, whereas the clear-cut receives light of higher intensities (> 200 µmol photons m2/s) for most of the day. PFD values assessed during...
Effect of tree seed crop on small mammal populations and communities in oak and beech forests in the Drahany Upland (Czech Republic)
P. Čermák, J. Ježek
J. For. Sci., 2005, 51(1):6-14 | DOI: 10.17221/4539-JFS
In 2002 (year with poor seed crop) and 2003 (year with good seed crop), the trapping of small mammals was carried out into standard snap-traps on transects situated in the area of the Křtiny Training Forest Enterprise, U buku locality (the Drahany Upland). The trapping was carried out in both years once a month in the period of September-November, in two types of forest of the community Querci-fageta: in a stand dominated by oak and in a stand dominated by beech. In total, 146 individuals were recorded, out of them 142 rodents - Apodemus flavicollis (81 individuals), Apodemus sylvaticus (32), Clethrionomys glareolus...
Production of Norway spruce (Picea abies [L.] Karst.) seedlings on substrate mixes using growth stimulants
M. Slávik
J. For. Sci., 2005, 51(1):15-23 | DOI: 10.17221/4540-JFS
We evaluated the growth of Norway spruce (Picea abies [L.] Karst.) seedlings on peat and bark substrates, on their mixes and on their mixes with agroperlite. We examined the basic quantitative traits (seedling diameters and heights), the number of produced seedlings per unit area, main root lengths, number of axial shoots and dry weight of shoots and roots. Besides the study of substrate influence on the biometrical characteristics of seedlings applied standard fertilisation an experiment was established as the second variant where the effect of biostimulants was tested; they were supplied by the Jaminex Company. The experiment was established...
Economic aspects of the selection system of management at the Masaryk Forest Training Forest Enterprise Křtiny
R. Dudík
J. For. Sci., 2005, 51(1):24-36 | DOI: 10.17221/4541-JFS
Forest road erosion
J. Dobiáš
J. For. Sci., 2005, 51(1):37-46 | DOI: 10.17221/4542-JFS
The forest road network influences surface runoff of uninfiltrated precipitation water on forest lands, mainly in hilly and mountainous areas. This water flows onto the road crown in unpaved forest roads that do not have any ditches. Dragging of extracted logs causes mechanical damage to the crown of unpaved forest road, and tracks after tractor wheels and furrows after dragged logs originate. Flowing water is accumulated in these depressions and the water stream causes erosion. The method for evaluation of conditions for the origination and degree of this erosion damage consists in the calculation of tangential stresses near the bottom at various...