Journal of Forest Science, 2008 (vol. 54), issue 12
Index of Volume 54Index
editors
J. For. Sci., 2008, 54(12):I-VI | DOI: 10.17221/2917-JFS 
The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance
M. Barna
J. For. Sci., 2008, 54(12):533-544 | DOI: 10.17221/42/2008-JFS
The paper summarizes the results of 15-year natural regeneration for beech of five plots with different densities situated in the Western Carpathians Mts. Three of the plots were subjected to differently intensive shelterwood cuttings (plots L, M, H), one plot was clear-cut (CC), and one was left without intervention - as a control (C). The number of one-year-old seedlings decreased proportionally with increasing cutting intensity. The ANOVA results document a significant influence of cutting intensity on the abundance of both one-year-old and older seedlings. The abundance of beech seedlings was initially increasing with increasing cutting intensity,...
A change in structural diversity and regeneration processes of the spruce virgin forest in Nefcerka NNR (TANAP) in relation to altitude
J. Pittner, M. Saniga
J. For. Sci., 2008, 54(12):545-553 | DOI: 10.17221/21/2008-JFS
This report assesses the structural diversity of the spruce virgin forest in Nefcerka NNR in the Tatra National Park (TANAP). The structure of the virgin forest is evaluated by the indices proposed by Clark & Evans, Füldner and Jaehne & Dohrenbusch. Concerning the spatial distribution of trees (Clark & Evans index), a statistically significant difference was confirmed between the growth stage and the optimum and the breakdown stages. The influence of altitude on the tendency of concentration of virgin forest trees was also confirmed. In the case of complex diversity evaluation by the JAEHNE & DOHRENBUSCH index (1997), a statistically...
Soil and plant communities development and ecological effectiveness of reclamation on a sand mine cast
M. Pietrzykowski
J. For. Sci., 2008, 54(12):554-565 | DOI: 10.17221/38/2008-JFS
The aim of the study was to assess terrestrial ecosystem development (mainly vegetation and soil characteristics) in the area of a sand mine cast (located in southern Poland) that has been either reclaimed or left for natural succession. A total of 20 sites in a chronosequence of 5, 17, 20 and 25 years were set up in two site categories: reclaimed and non-reclaimed sites. Selected properties of initial soils and features of vegetation were measured and they included carbon accumulation in soil; biomass and diversity of communities were also estimated. Next, based on carbon accumulation, the energy trapped in ecosystem components was estimated. Although...
Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis )
Y. Lei
J. For. Sci., 2008, 54(12):566-571 | DOI: 10.17221/68/2008-JFS
Weibull distribution was used to fit tree diameter data collected from 86 sample plots located in Chinese pine stand in Beijing. To estimate the Weibull distribution parameters, three methods [namely maximum likelihood estimation method (MLE), method of moment (MOM) and least-squares regression method (LSM)] were compared and evaluated on the basis of the mean square error (MSE) and sample size. For these sample plots, the moment method was superior for estimating the parameters of Weibull distribution for tree diameter distribution.
Response of birch (Betula pendula Roth) phytophages to liming
E. Kula
J. For. Sci., 2008, 54(12):572-578 | DOI: 10.17221/43/2008-JFS
: In the course of 2004-2007, the effects of compensation liming at the application dose of 1.5-3-6 t/ha dolomitic limestone on the elimination or activation of phytophages or other types of damage resulting in the loss of assimilatory organs did not become evident yet. A shift was noted in the fluctuation expressed indirectly by the extent of damage to the assimilatory area in feeding caused by an undetermined hymenopterous larva (summer increase), weevils (spring and summer decline and increase in 2007), Coleophora serratella (decline), Eriocrania sp. (increase), mites Acalitus rudis (increase), Eriophyes leionotus (increase...