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The formation of the stand structure interacts with the processes of growth and competition. Previous observations mainly focused on the analysis of the type of tree distribution resulting from these processes. Development of spatial diversity of tree parameters is less known issue. The research was carried out in mountain Norway spruce stands with a large variety of taxation parameters located in...
The aim of the study was to research which wood species were used to make constructions and everyday objects in the Świętokrzyski, Rural Town, and Manor sectors of the Ethnographic Park (an open−air museum) in Tokarnia (central Poland). The objects on display are in the natural village environment. Apart from the traditional architecture there are also permanent exhibitions of furnishings belonging...
The paper presents the inventory of place names (toponyms) connected to European beech (Fagus sylvatica L.). This tree species reaches its eastern distribution limit in Poland and covers around 5.9% of forest area in the country. Due to the fact that its occurrence depends mostly on climatic conditions it is present on the west, north and south, but not in the central and eastern part of Poland. The...
Due to the observed impacts of climate change on the natural environment, the demand for energy from renewable sources is growing, especially in the last decades. One of the possibilities in this respect is the use of forest biomass, especially that one which comes from logging residues. This type of wood raw material is obtained primarily in mature forests and during late thinnings. Estimation of...
This study analyses the interdisciplinary issue of the objective of legal provisions regarding the four principles of forest management listed in the Act on Forests and their significance for the common welfare and public health in Poland. The common welfare consists of the general determinants necessary for the integral development of people and society, and these determinants include public health,...
Extreme weather events such as hurricanes, floods or fires become more and more common phenomena in Europe. In August 2017, strong wind accompanied by heavy thunderstorms caused severe damage over the large area in central and western Poland. According to rapid damage assessment prepared by the State Forests authorities a few days after the windthrow, ca 79.7 thousand hectares of forest was damaged...
In most cases, mechanical site preparation (MSP) is a precondition if high−quality (natural or artificial) regeneration of forests is to be achieved. However, the measures involved here may differ in terms of the level of intervention of the soil environment, at both the surface and deeper down. The choice of MSP methods should be based on climatic conditions, site type and the species whose renewal...
The stand volume is one of the forest inventory characteristic determined during the field work aimed at planning operations in the tree stands. Determining the optimal rotation age is an important decision issue in the forest management. In turn, the key factor that determines the choice of the method for determining the rotation age of the tree stands is the production target. Depending on the rotation...
In the end of 2013 the Norway spruce stands in the Kościelska Valley in the Tatra National Park (S Poland) were severely damaged by the wind. In the next year about 22,000 m³ of timber from broken and fallen trees was processed and removed from the active protection zone, whilst in the strict protection zone those trees were left. In 2014, when the presented survey started, the infestation of lying...
The current provisions in the EU directive, applicable to the signatories of the document, assume reaching by 2020 a share of at least 20% of energy coming from renewable sources. The EU Parliament demands changes to the current directive on forest biomass and its contribution to the use of renewable energy. The Parliament considers it expedient to increase the amount of forest biomass obtained, including...
The aim of the research was to determine the frequency of horse recreation in the forests and the awareness of threats resulting from this kind of activity for the forest ecosystem. Horse recreational activities were analyzed in terms of gender, age, education, place of residence, and occupational status. The research used an original questionnaire and was conducted in 2016 among 1203 inhabitants...
The paper presents results of the studies on Cu, Mn and Zn content in forest soils of northern and central Poland covered by intensive monitoring. The investigated stands (Białowieża, Chojnów, Gdańsk, Krotoszyn, Krucz, Łąck, Strzałowo, Suwałki) cover various soil reference groups, including Brunic Arenosols, Cambisols and Stagnosols, developed from Quaternary deposits of different origin – glacial...
The objective of the study was to determine the quantitative and valuable potential of wood resources of black locust (Robinia pseudoacacia) and Douglas fir (Pseudotsuga menziesii) in individual regional directorates of the State Forests (RDSFs) in Poland. We used data from the State Forests Information System database (values for the end of 2014) to determine the amount of the resources of the analysed...
The article presents the results of a survey conducted in the years 2013−2014. It concerned current and planned educational cooperation (within the framework of activities in the field of nature protection in the broad sense) between the administration of landscape parks and forest districts of the State Forests. Information was obtained from 86 landscape parks (out of 122 in Poland), located to a...
Wych elm (Ulmus glabra Huds.) is a rare scattered forest tree species in Poland. First studies on genetic diversity of the species in its natural range in Poland give a good basis for the management and conservation of its genetic resources. In the present study, we determined the level of genetic variation and genetic differentiation of seventeen natural Wych elm populations in Poland using nine...
In Poland, private forests cover the area of 1,774,698 ha, which constitutes 19.2% of total forest area in the country. It is assumed that their actual share is much bigger, because about 300,000 ha of agricultural grounds covered with secondary succession forests, have not been classified as a forest grounds. In 2013, the complete and actual forest management documentation was prepared by 68.7% of...
Forests are an area of great significance, regarding both educational and recreational needs of society. The article undertakes an issue of tourism infrastructure in the state forests in Poland, considering the its quantitative and qualitative variability. The analysis took into account the evaluation of usefulness of the state forest areas for different forms of tourism and recreation. Source material...
The paper presents assessment of the value of selected beech and fir stands by the classic method and using the value tariff in two ways. The aim of the work was to verify the suitability of the local tariff method based on the SILP forest database for the valuation of timber resources in forests. The measurements were carried out in the Beskidy Mountains (southern Poland). The reference sales value...
Bats have a set of features that make them very effective insects predators, thus they can potentially play an important role as a biological pest control agent in forests. The active flight ability, nocturnal lifestyle, high level of metabolism and a lack of a significant threat from predators make bats the most important predators of insects active in the evening and at night. All bats species noted...
The burning of wood in the Bieszczady Mountains (SE Poland) began to play a significant role with first settlements in this region in the 17th and 18th centuries. Large beech wood resources were the main reason for such a high charcoal production in this part of Poland. The role of charcoal production in the Bieszczady region is reflected in the names of villages such as Smolnik (Tar), Potasznia (Potash)...
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