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Effects of preparatory stands on forest site restoration
2002
Remes, J. | Podrazsky, V. (Czech University of Agriculture, Prague (Czech Republic). Faculty of Forestry)
The main aims of the preparatory stands in air pollution areas are growth development, successfull dynamics of the plants and fast creation of the stand microclimate with favourable effect on soil conditions. This process is documented by height and diameter increment. The results confirm different growth dynamics of the particular species. Larch is the species with the best growth dynamics of selected species on experimental plots. On the other hand, beech is the worst species for reforestation in this condition. One of the causes could be damage by frost
显示更多 [+] 显示较少 [-]Implementation of remediation measures in forests with the emphasis on the forests in Spis region
2002
Vosko, M. (Forest Research Institute, Zvolen (Slovak Republic))
Major part of implemented measures was aimed at early artificial forest regeneration and securing plantations, or protection of young forest stands against damage by bark beetles. Only exceptionally there were proposed measures with the aim to increase vitality, stability and improvement of the structure of forest stands by their tending. It was worked out a draft of procedures for forest managers to help them in deciding at which stocking it is necessary to reforest reduced or actual clearings, whether to fell down open stands or to leave them regarding their age, state and expected further development
显示更多 [+] 显示较少 [-]Foreign tree species cultivated in the emission damaged area of the ore mountains
2002
Paul, M. (Saxon State Institute for Forestry, Pirna/OT Graupa (Germany). Department of Genetics and Breeding)
The paper presents forest damage in Saxony, silvicultural treatment and the choice of tree species, base of the choice of tree species for areas damaged by air pollutants and solving the problems only on interdisciplinary basis
显示更多 [+] 显示较少 [-]Diameter and diameter increment values of beech trees grown on permanent research plots with various stand densities, in the submountain vegetation tier
2002
Vosko, M. | (Forest Research Institute, Zvolen (Slovak Republic)) | Jezik, M. (Institute of Forest Ecology of Slovak Academy of Sciences, Zvolen (Slovak Republic))
The attention was focused on the diameter increment of beech timber forest growing on the partial plots with various stand density. The individual parts of the originally homogenous stand, were subjected to regeneration cutting of various intensity resulting in several partial plots. On the different partial plots we found different proportions of trees belonging to the individual diameter classes. We also found that the differences between the individual plots were statistically very significant. Beech is a tree species which is capable to continue creating considerable light increments even long after the stand opening
显示更多 [+] 显示较少 [-]Implementation of remediation measures in municipal forests of Spisska Nova Ves
2002
Stefanik, J. (Municipal Forests, Spiska Nova Ves (Slovak Republic))
Spis region is due to long-term effect of air pollution one of the most polluted regions in Slovakia. Decline of trees, mostly of spruce, was recorded here altogether with disintegration of forest stands. Incidental felling and its volume is frequently connected with local source of air pollution from iron-ore works Rudnany and Kovohuty. Long-range transfer of air pollutants from Poland (Katowice) plays a certain role in air pollution as well. In the year 1994 the damaged stands were classified into the zones of endangerment, the period of the validity of forest management plan was shortened and there were proposed measures for forest regeneration
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