The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The wood present in trade in Poland named as ‘Siberian larch’, in fact belongs to two tree species: Larix sibirica Ledeb. and Larix gmelinii (Rupr.) Kuzen. The term itself is rather associated with the origin of wood. While Larix sibirica wood is the subject of many research, characteristics of Larix gmelinii still require additions. The main aim of this paper was to describe the technical properties...
The objective of the study was to determine whether differences exist between the selected characteristics of Norway spruce cones and seeds depending on their location in the crown. The study was performed in two spruce tree stands growing under mountainous conditions (the Beskidy Mountains, southern Poland). In winter 2015, the cones were collected from 60 standing trees located in the two selected...
The purpose of this study was to present the possibilities of using available Volunteered Geographic Information (VGI) created by the users of OpenStreetMap program and sports applications such as GPies.com or Endomondo to monitor the traffic in the forest area. In addition, areas where, due to high traffic, potential conflicts between different user groups may occur, were marked out. The research...
Skidding includes timber transport from the place of its harvest to the place of its storage, loading or pre−treatment. This process in the thinned stands can result in serious damage to the remaining trees. The purpose of the described research was to characterize and compare the size and location of damage in the thinned stands after forwarder skidding with the damages resulting from the combined...
The line intersect method is recommended for coarse woody debris (CWD) inventories. This is due to the fact that for the CWD volume estimation with the assumed standard error (SE), the total time of measurements using line sampling units is shorter than when using the fixed−area sample units. The aim of the research was to determine: (1) the number and size of sample units whose use will allow achieving...
Early thinning operations performed in relatively young stands, the most important element of the forest ecosystem, have a much greater impact on their stability than late thinning performed in the stands of older age classes. As regards early thinning, the method of tending cuts based on positive selection (selection and promotion of superior trees) developed by Ilmurzynski has formally been operating...
Presented research investigates the possibility of applying the newest, free available satellite images Sentinel−2 for the automation of land use/cover (LULC) mapping in reclaimed areas, mainly in the aspect of monitoring forested areas. The study was performed for the former sulphur mines: ‘Machów’ (871.7 ha of the dump area after the opencast strip mine) and ‘Jeziórko’ (216.5 ha of the afforested...
This article describes how the first forest maps in the Congress Kingdom of Poland were prepared and used. The source materials include the decisions of the governing authorities, special instructions for the forest surveyors, and original letters and reports related to the implementation of particular regulations. The principal cartographic materials consist of 22 surviving forestry area maps contained...
Ectomycorrhizal communities associated with Pinus sylvestris growing on dry coniferous forest habitat after the fire were studied. In order to investigate the fire effect on ectomycorrhizal fungi and changes of soil parameters in the upper (0−15 cm) soil layer three study plots were established: 1 – the control, 2 – fire zone left for artificial renewal (with the economic method of renewal) and 3...
The State Forests, National Forest Holding, is increasingly burdened with the costs of nature protection, recreational development and certification. As a consequence, there is an increase in costs and limitations in forest management. The emphasis is also on different social and environmental functions, and as a result, income from the sale of wood becomes smaller. The aim of the study is to verify...
The paper presents the results of a study on water relations conducted in the hydrological years 2000−2010 in the catchment of Ługowina and Ługowinka in the western part of Wrocław (SW Poland). The studied object was created in the mid−1990s by afforestation of nearly 100 ha of meliorated agricultural land. The research objective was to determine the changes in the resources of ground water retention...
This paper aims to assess the degree of forest areas protection in the face of the growing problem of suburbanization (so−called ‘spilling of cities’). The problem particularly affects districts (often rural) in large cities suburban zones. These districts can often characterize with rich natural and landscape conditions. Because of the new residents’ inflow and the fulfillment of their needs, these...
Because of the ever−changing nature of the environment, the limited availability of natural resources, and the increased number of people in the world, modifications in food production can be very important. In order to prevent irreversible damage occurring in the natural environment, food sources that are an alternative to pig meat, beef and poultry from industrial production are being sought. An...
The study objectives were to identify external sources of financing the nature and forest education and to analyze the level of their use in regional directorates of the State Forests (RDSF) in the years 2006−2016. In addition, we studied the relationship between the amount of external and internal financing. As a data source, we used reports on educational activities of the State Forests for the...
The main aim of study was to present the stock and structure of deadwood in different site conditions. In total. sixteen study plots were established on wet broadleaved forest (Lw) and riparian alder forest (OlJ) sites. The objective was to determine the carbon accumulation in lying dead trees. The investigation was performed in the Czarna Rózga reserve in Central Poland (50°59‵37N; 20°01‵5E). All...
The issues of timber logging are not only of natural, but also of legal nature. A complicated procedure related to the certification of wood is required to ensure that wood can be subject to a course of trade. Wood trade is regulated by the national law. However, it is also delimited in the European Union legislation, which is extremely important in the context of Poland’s EU membership. The legality...
In the Beskid Żywiecki, the combination of abiotic, biotic and anthropogenic factors unfavourable for the growth of trees led to the dieback of spruce stands. The intensification of this process began after the hurricane in November 2004, followed by years of negative climatic water balance. The deterioration of tree growth conditions occurred after the drought in July 2006 and damage caused by the...
The amount of timber extracted from Polish forests is expected to increase in near future. The most common equipment for timber extraction is an agricultural tractor with a trailer equipped with a hydraulic crane. The research was carried out in the Wymiarki Forest District (Regional Directorate of the State Forests in Zielona Góra) in the third (TP1) and fourth age class (TP2) in Scots pine stands,...
The research was undertaken due to the lack of synthetic studies and collections concerning monumental trees in the spa towns in Poland. We investigated all 45 towns with such a status. The article presents the numerical and species data of the nature monument trees. For individual species, the average breast height diameter is also given. A database of nature monuments was created (separately for...
In 2014−2015, the General Directorate for Environmental Protection carried out an inventory of natural monuments in Poland. The data collected during this process was used to update and expand the generally available Central Register of Nature Protection Forms (CRFOP). Based on these material, the assignment of nature monuments to particular categories was verified and their number in individual categories...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.