Journal of Forest Science, 2007 (vol. 53), issue 12
INDEX OF VOLUME 53 Journal of Forest Science
editors
J. For. Sci., 2007, 53(12):I-V | DOI: 10.17221/2169-JFS 
Evaluation of qualitative attributes of forest ecosystems by means of numerical quantifiers
Š. Šmelko, M. Fabrika
J. For. Sci., 2007, 53(12):529-537 | DOI: 10.17221/2163-JFS
This paper presents a proposal of four variants of quantifiers for the numerical expression of qualitative attributes of forest ecosystems, for example site, naturalness, biodiversity, ecological stability, threat of injurious agents, status of forest biotopes of European significance in the NATURA 2000 network and so on. Quantifiers enable to completely characterise the whole set of these qualitative attributes of the ecosystem by one number which directly indicates the relative approximation of the ecosystem (in %) to the required most favourable status. They have more advantages: different numerical operations can be done with them, it is possible...
Variation of the tree form factor and taper in European larch of Polish provenances tested under conditions of the Beskid Sądecki mountain range (southern Poland)
J. Socha, M. Kulej
J. For. Sci., 2007, 53(12):538-547 | DOI: 10.17221/2168-JFS
The genetic variation in 20 provenances of European larch, growing under site conditions of the Beskid Sądecki mountain range (experimental area in Krynica), was investigated during a long-term study carried out within the 1967 Polish Provenance Experiment on Larch. Data consisted of diameter measurements taken outside bark on standing trees of the analyzed provenances. Results showed that there was no distinct variation in the tested larch populations in respect of stem form. Some differences between compared provenances in respect of stem taper and form factor were the result of differences in tree height and diameter.
Allometric relationships for surface area and dry mass of young Norway spruce aboveground organs
R. Pokorný, I. Tomášková
J. For. Sci., 2007, 53(12):548-554 | DOI: 10.17221/2166-JFS
Tree-level allometric functions for a precise predicting of stem, branch and leaf mass and surface area of three needle-shoot age classes were estimated from measurements of crown and stem dimensions in 34 harvested Norway spruce (Picea abies [L.] Karst.) trees. Trees were grown within a 16-years-old stand in the Beskids Mountains. The results showed stem parameters (stem diameter at breast height - dbh, stem volume - Vs and stem sapwood area - SA) to be highly correlated (r > 0.98) with stem mass/area and total aboveground mass of tree. Crown parameters - volume (Cv) and surface area (Ca) were the best predictors for individual branch...
Growth reaction of young wild cherry (Prunus aviumL.) trees to pruning
I. Kupka
J. For. Sci., 2007, 53(12):555-560 | DOI: 10.17221/2165-JFS
A large crown is one of the most important prerequisites for the good growth of a tree and therefore the crown could be called an engine of increment. The care for a large crown brings a decrease in the bole value at the same time as it makes large branches and later knots on it. Pruning is a possible solution of these two contradictions. Young wild cherry trees were pruned in three different ways: (i) half of the crown left, (ii) one quarter of the crown left and (iii) control, i.e. no pruning. The results show that height growth was not influenced by pruning while diameter growth was significantly affected. The crown reduction...
Root systems of forest tree species and their soil-conservation functions on the Krušné hory Mts. slopes disturbed by mining
P. Čermák, F. Fér
J. For. Sci., 2007, 53(12):561-566 | DOI: 10.17221/2167-JFS
The paper describes the root system architecture of the forest tree species Fagus sylvatica L., Quercus robur L., Pinus sylvestris L., Carpinus betulus L., Acer platanoides L., and Alnus glutinosa (L.) Gaertn. at the age of 80-220 years growing on the slopes of the Krušné hory Mts. at the altitude of 330 to 480 m above sea level. These species were influenced by open-pit mining of brown coal as well as by power engineeting. The investigation also involves the determination of soil properties of Ranker Cambisols.
Stem decay by Stereum sanguinolentum after red deer damage n the Českomoravská vrchovina Highlands
P. Čermák, M. Strejček
J. For. Sci., 2007, 53(12):567-572 | DOI: 10.17221/2164-JFS
Damage caused by bark peeling and browsing by red deer to Picea abies was investigated in two localities in the Českomoravská vrchovina Highlands. 127 experimental plots of 50 × 50 m in size were monitored in stands aged from 15 to 93 years. In total, 44% of 16,700 inspected trees were damaged by bark peeling and browsing. The area of gaping wounds varied from 50 to 1,650 cm2. Stem decay affected 68% of the damaged trees. Some properties of the decay were analysed from 200 sample trees felled on the plots. Bark peeling damage occurred when the trees were 4 to 48 years old. Decayed wood accounted for 22-70% (mean 42%) of the merchantable...