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Recreational hunting is perceived as the future of hunting in general. Paper gives the characteristics of this phenomenon in the world, Europe and Poland. Recreational hunter is characterized with regard to their sex, age, social origin, level of education, income and hunting effectiveness. This hunting effectiveness is hopelessly low, since the goal of this hobby is recreation, not necessarily efficient...
Critical transport velocity, thickness, width, length, angle of sliding friction and weight of small−leaved lime (Tilia cordata Mill.) seeds from five batches, harvested in four neighboring seed regions in Poland, were determined. The values of shape factor, cross−sectional area, volume and density were calculated for each seed. The results were compared using standard statistical methods (simple...
The article presents an economic evaluation of effectiveness of early thinnings in pine stands. The assessment was based on the relationship between the revenues from timber sales and treatments costs. Studies confirmed that the profitability of thinning depends on the quality of habitat, stand age and forest district. Effectiveness of thinning is rising with increasing habitat quality. Costs of thinning...
The aim of the study was to develop a site index model for Scots pine stands in southern Poland describing changes in height growth of stand's upper storey over time. The research material contained the height growth data obtained from an analysis of 189 tree stems. The collected material was used to develop the parameters of six dynamic growth equations which allowed to determine site productivity...
The genetic variation of Norway spruce provenances from fourteen geographical regions were tested in the IPTNS−IUFRO 1964/68 experiment in Krynica. The genetic structure of seven isozyme systems coded by eleven loci was described. Parameters of genetic polymorphism i.e. the average number of alleles per locus and observed heterozygosity were 1.47 and 0.12, respectively. The spruces from Belarus were...
The paper provides the review of research on interaction in dual cultures in vitro (fungus and plant tissue culture of its host plant) with marking test results in this area in order to show usefulness of this method in testing pathogenicity and the possibility of its use in forest practice
Paper concerns the valuation of forests under all forms of ownership on the basis of the first stage of the Large−Scale Forest Inventory completed in 2009. The total value of Polish forest resources (land and stands) at the end of 2008 amounted to nearly PLN 189 billion, of which 80% was the value of the forest resources available for wood supply. Forest resources of the highest value (PLN 145 billion),...
The study provides an analysis of the scope and conditions of using business information by Polish private forest entrepreneurs. The study is based on the results of research conducted in 2003 and 2007 using the same methodology. During four years between two successive study cycles, forest entrepreneurs showed a significant growth of interest in the available sources of information. The outfitting...
Presented investigations focused on spatial variability of forest soil pH on an example of luvisols derived from loess with underlier of marlstones. Four study plots were located in different parts of the slope. Marlstones, present deeper than 1 m under loess layer, had most significant influence on spatial variability of topsoil pH. Despite relatively thick separation from the surface, the marlstone...
Genetic markers in mitochondrial and chloroplast DNA were analysed to determine the native status and possibly trace the origin of the silver fir (Abies alba Mill.) growing outside this species natural range in Osusznica Forest District (northern Poland). The provenance of the extralimital populations were determined through comparison with reference samples from the native range of silver fir in...
Complete discontinuation of agricultural use of subalpine meadows in the Western Bieszczady, which dates back to 1940s, started the process of their overgrowing with brushwood. Based on available cartographic material the following features were analysed: changes in the area occupied by brushwood on Mała Rawka and Wielka Rawka subalpine meadows, their growth rate and the relationship between the overgrowth...
The paper presents an analysis of merchantable timber volume in three Scots pine stands aged 35, 50 and 88 years depending on Kraft's classes. It also shows the strength of the relationship between this volume and various measures of a tree's growth space (crown projection area, crown width, Seebach's growth space number, crown projection area ratio, space of a single tree and crown spread), crown...
The paper investigates a landslide that occurred in the Śnieżnik Massif (SW Poland) in July 2011 after the heavy rainfall. Damage to the infrastructure in Międzylesie and Lądek Zdrój forest districts, in which the losses were the most extensive, are presented. Study analyses not only weather conditions, but also geo− morphologic and hydrologic factors associated with the occurrence of the mass movement.
The aim of this research was to assess damage to three important forest−forming trees species in the mountains – spruce, fir and larch, and to study their increment reaction to changing environmental conditions. Research concerned forests under the management of four forest districts located in the Western Sudetes (SW Poland). Index W ranging from 0 to 3 was used for the assessment of the damage to...
Glades are an important element in the landscape of the Gorce Mts. (southern Poland). The cessation of use of the glades triggered the spontaneous process of landscape development − renaturalization, leading to their gradual overgrowing. The paper presents the results of research on the renaturalization of 46 glades situated in the upper montane belt in the Gorce Mts.
Article presents the assessment of growth and survival of silver fir seedlings planted under stand canopies constituted by common beech, European larch, Norway spruce, Scots pine and silver birch. Measurements were carried out in Karkonoski National Park (SW Poland) in 2001 and 2011. The tallest trees were grow− ing under the canopy of larch both in 2001 and 2011.
In the natural stands of the lower−montane zone in the 'Łopuszna Valley' Reserve (Gorczański National Park) consisting of beech, fir and spruce, a specific phenomenon was observed, which in other natural forests of the Western Carpathians occurred only occasionally. In the years 1981−2011, along with the increase in the proportion of beech in stands and in regeneration, which is now common issue in...
Presented study compares of the performance of Scots pine plantations established with container−grown and bare−root seedlings. Silvicultural assessment was based on the comparison of survival rate, defect differentiation as well as height and diameter growth of plants depending on the type of the planting material used for renewal. Results show faster growth of the container−grown plants but their...
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