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    Wyświetlanie 1-10 z 10
    Tytuł:
    Wewnętrzne zagrożenia przyrody w parkach narodowych w Polsce
    Vnutrennie faktory ugrozy dlja prirody nacional'nykh parkov v Pol'she
    Internal threats to nature in national parks in Poland
    Autorzy:
    Lubczynski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/816896.pdf
    Data publikacji:
    1988
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    obszary chronione
    parki narodowe
    zagrozenia przyrody
    czynniki wewnetrzne
    Polska
    Źródło:
    Sylwan; 1988, 132, 08
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zewnętrzne zagrożenia przyrody w parkach narodowych w Polsce
    Vneshnie faktory ugrozy dlja prirody v nacional'nykh parkakh v Pol'she
    External threats to nature in national parks in Poland
    Autorzy:
    Lubczynski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/816192.pdf
    Data publikacji:
    1988
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    obszary chronione
    parki narodowe
    zagrozenia przyrody
    czynniki zewnetrzne
    Polska
    Źródło:
    Sylwan; 1988, 132, 09
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola owadow w funkcjonowaniu ekosystemow lesnych obszarow chronionych ze szczegolnym uwzglednieniem parkow narodowych
    Autorzy:
    Okolow, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/824261.pdf
    Data publikacji:
    1999
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zwalczanie szkodnikow
    obszary chronione
    ekosystemy lesne
    szkodniki roslin
    owady
    parki narodowe
    lesnictwo
    Źródło:
    Sylwan; 1999, 143, 03; 87-93
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Różnorodność mikroorganizmów glebowych obszarów chronionych i o znaczących walorach przyrodniczych
    Diversity of soil microorganisms on areas under protection or with significant natural values
    Autorzy:
    Abramczyk, K.
    Gałązka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989210.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    mikrobiologia gleb
    obszary chronione
    obszary o walorach przyrodniczych
    gleby
    mikroorganizmy glebowe
    roznorodnosc biologiczna
    biodiversity
    soil microorgamisms
    protected areas
    forests
    environment
    Opis:
    The article presents problems connected with the biodiversity of soil microorganisms occurring on selected protected areas. Based on the literature, authors attempt to explain the concept of biodiversity, the role of soil in the natural environment and the importance of soil microorganisms. The article also presents selected anthropogenic factors that influence microorganisms found in soils under different forms of protection. The large species diversity of soil microorganisms is closely related to their functions in the soil. Soil microorganisms participate in all processes occurring in the soil. They influence humus formation, increase soil fertility, provide plants with nutrients by decomposing organic matter and fight pathogens. The special attention focused on the broad concept of biological diversity as a form of preservation possibly the greatest richness of life on Earth. Ecological conditions prevailing in the different ecosystems affect the modification of the environment and force adaptation of organisms (including microorganisms) into the habitat. To preserve the diversity of the microorganisms, it is important to protect their habitat – the soil. Intolerance to certain environmental conditions and competition between microorganisms causes abnormal functioning of ecosystems and significant depletion of biodiversity. However, the main cause of the microorganisms biodiversity loss is the human pressure on the natural environment. Human activity causes the extinction of many species of plants and animals and has a negative impact on the soil environment. This in turn affects the functioning, abundance and biodiversity of soil microorganisms. In areas with significant natural values such as forests and protected areas (national parks) biodiversity of microorganisms is maintained at a much higher level than in the case of productive soils. The environmental protection leads to the equilibrium in the natural systems and its biotic and abiotic components, including biodiversity. Therefore, the need to create places of special protection such as national parks, nature reserves, landscape parks, etc. is very much justified.
    Źródło:
    Sylwan; 2017, 161, 06; 496-503
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Społeczne potrzeby i preferencje w zakresie wypoczynku na terenach chronionych na przykładzie rezerwatu przyrody "Nad Tanwią"
    Social needs and preferences in the field of leisure in protected areas – 'Nad Tanwia' nature reserve case study
    Autorzy:
    Mandziuk, A.
    Kikulski, J.
    Parzych, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/985758.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    obszary chronione
    rezerwaty przyrody
    rezerwat Nad Tanwia
    wypoczynek
    potrzeby spoleczne
    preferencje spoleczne
    forms of leisure
    social needs
    protected areas
    forests
    Opis:
    Forests covered by various forms of nature protection are a popular resting place for the society. The choice of a certain place for the leisure depends not the attractiveness of the area, but also on its availability, the condition of the infrastructure, and on the preferences of tourists. The aim of the research was to determine the significance of the ‘Nad Tanwią’ nature reserve (‘NT’ NR) for tourism and recreational purposes. The following aspects were considered: the motives of arrival, forms of spending free time, frequency of visits and length of stay. The ‘NT’ NR is a landscape reserve with an area of 41.33 ha located in the Józefów Forest District (SE Poland). The research material consisted of the data from questionnaires collected in the survey conducted from May to September 2017 in the ‘NT’ NR. The research covered a group of 341 respondents. For statistical analysis we used Friedman ANOVA (with Davenport’s modification), chi−square function in the logarithmic form (so−called G function), Mann−Whitney and Kruskal−Wallis tests. The visitors most often came to the ‘NT’ NR mainly due to the need to rest (61% of respondents), interesting landscape (57%) and the proximity of the reserve from their place of residence (39%). Most tourists spent time on walks (50% of the time), trips (21%) and cycling (17%). The respondents visited the examined area on average over 11 times, and the average length of their stay was 3 days. Statistically significant differences in the needs and preferences depending on the social characteristics of the respondents were obtained. Inhabitants of the cities declare a greater need for tourism and recreation comparing to the rural residents. The ‘Nad Tanwią’ nature reserve is frequented by local population, therefore their needs in this area should be met. Hence the need for further research is to learn about their preferences in terms of necessary of infrastructure and tourist information. These factors contribute to the greater development of tourism and recreation, and ‘NT’ NR could be an example of a sylvatouristic product of this region.
    Źródło:
    Sylwan; 2019, 163, 12; 1016-1024
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Turystyka i rekreacja w lasach na obszarach Natura 2000 – aspekty prawne, finansowe i ideowe
    Tourism and recreation in forests within the Natura 2000 areas - legal, financial and ideological aspects
    Autorzy:
    Referowska-Chodak, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009236.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    obszary chronione
    Europejska Siec Ekologiczna Natura 2000
    lasy
    turystyka
    rekreacja
    ekoturystyka
    aspekty prawne
    aspekty ekonomiczne
    natura 2000
    forests
    ecotourism
    recreation
    law
    financing
    Opis:
    Tourism and recreation within Natura 2000 areas are supposed to be an important branch of social activity and source of income for local inhabitants, organisations and self−governments. Because of natural value of forests within Natura 2000 areas, they should be made accessible with care, also especially because they are protected by national protection forms. Both EU and Polish law regulates principles of Natura 2000 areas accessibility. Model of safe tourism (ecotourism) should be promoted to reduce conflicts that arise at the edge of nature protection and utilisation. EU funds will be very helpful to realise that as on one hand they enable to prepare sufficient infrastructure and on the other – they help with promotion of the region.
    Źródło:
    Sylwan; 2010, 154, 02; 117-123
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Turystyka i rekreacja w lasach na obszarach Natura 2000 – aspekty przyrodnicze
    Tourism and recreation in forests within the Natura 2000 areas - natural aspects
    Autorzy:
    Referowska-Chodak, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009402.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ochrona przyrody
    Europejska Siec Ekologiczna Natura 2000
    obszary chronione
    lasy
    turystyka
    rekreacja
    natura 2000
    forests
    tourism and recreation
    habitat and species sensitivity
    Opis:
    Paper presents analysis of resistance of forest habitat and species that are subjects of protection within Natura 2000 to pressure related to development of tourism and recreation. Types of negative impacts as well as affected habitats and species were presented. Objects of potential protection that have no defined further vulnerability to tourism and recreation were listed too. There are many possibilities of solving the conflicts arising on the contact between Natura 2000 forest habitats and species protection as well as tourism and recreation. They include legal, organisation, infrastructure and education solutions.
    Źródło:
    Sylwan; 2010, 154, 12; 828-836
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preferencje pokarmowe bobra europejskiego (Castor fiber L.) na terenach zurbanizowanych oraz chronionych
    Forage preferences of the European Beaver [Castor fiber L.] on urban and protected areas
    Autorzy:
    Czyżowski, P.
    Karpiński, M.
    Drozd, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1012040.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    obszary chronione
    bobr europejski
    tereny zurbanizowane
    Castor fiber
    preferencje pokarmowe
    Nadwieprzanski Park Krajobrazowy
    lesnictwo
    jezioro Sumin
    european beaver
    forage preferences
    damage of trees
    Opis:
    This paper compares food preferences (tree species) of beavers that live in urban and protected areas. All trees were identified to species level, and their diameter at breast height placed into one of eight classes. Results showed differences between trees species grieved by beavers and dbh classes on studied urban and protected areas.
    Źródło:
    Sylwan; 2009, 153, 06; 425-432
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Akumulacja makro- i mikroelementów w mchach Słowińskiego Parku Narodowego
    Accumulation of the macro- and microelements in mosses in the Slowinski National Park
    Autorzy:
    Parzych, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989895.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    obszary chronione
    parki narodowe
    Slowinski Park Narodowy
    mchy
    makroelementy
    mikroelementy
    bioakumulacja
    Hylocomium splendens
    Pleurozium schreberi
    zawartosc makroelementow
    zawartosc mikroelementow
    hylocomium splendens
    pleurozium schreberi
    macroelements
    microelements
    protected area
    Opis:
    This study was carried out in the Słowiński National Park (SNP, northern Poland) in 15 Scots pine forest stands. The research objective was to analyze the content of macro− and microelements in Pleurozium schreberi and Hylocomium splendens and to compare accumulation properties of these mosses. The examined parameters characterized by diverse composition, which depended on the mosses species and location of the study plot. The nitrogen was determined by Kiejdahl method, and the phosphorus by the molybdate method. The content of K, Mg, Ca, Zn, Cu, Ni, Mn, and Fe was assessed by atomic absorption spectrometry after mineralization in the mixture of 65% HNO3 and 30% H2O2. The content of microelements in mosses was low and indicated low abundance of forest ecosystems in the SNP as to basic nutritional components. The highest average amount of nitrogen, phosphorus, iron, manganese and copper were found in H. splendens, while potassium, magnesium, calcium, zinc and nickel in P. schreiberi. The content of zinc, nickel, copper, manganese and iron in both species were within the limits of permissible values characteristic for the plants of the unpolluted areas. Relation among the determined macro− and microelements in both species constituted the following decreasing series: N>Ca>Mg>P>K>Fe>Mn>Zn>Ni>Cu (H. splendens) and N>Ca>Mg>K>P>Fe>Mn>Zn>Ni>Cu (P. schreberi). Mann−Whitney test indicated the significance of the differences in the content of N (p<0.001), K (p<0.001) and Cu (p<0.01) between in P. schreberi and H. splendens. The mosses accumulated from 641.7 to 689.3 mmolc/kg of all the analyzed components, and the lower sum of the accumulated macro− and microelements was found for P. schreberi. Accumulation differences in the properties of the examined species of mosses primarily result from the varying demand for individual components. Relatively high participation of Mn and Fe in the sum of the measured components in both species of moss can be the evidence of excessive uptake of these elements from the soil with heavily acidic reaction of the organic and humus levels of the soils in the SNP.
    Źródło:
    Sylwan; 2015, 159, 04; 345-352
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Liczba i wielkość jednostek próbnych do pomiaru leżących martwych drzew metodą liniową
    Number and size of sample units for the estimation of coarse woody debris volume using the line intersect method
    Autorzy:
    Miścicki, S.
    Sołtys, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/980334.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    obszary chronione
    obszar ochrony scislej Bukowa Gora
    drzewa martwe
    zasoby drzewne
    miazszosc drzew
    metody pomiarow
    metoda liniowa
    linie probne
    bukowa góra
    protected forest
    sampling line
    single−tree−plot coefficient of variation
    standard error
    time of measurements
    Opis:
    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 the assumed SE of the CWD volume estimation, and (2) dependence of this number and size of sample units on the quantity of CWD. The research material was collected from 131 sample units (sampling lines) with a length of 50.48 m each. They were systematically located in the stands (128 ha) on Bukowa Góra in the Roztocze National Park (south−east Poland). Data concerning the intersection points of the sampling line (in relation to its beginning) with the axis of a downed log, made it possible to simulate the measurement using shorter sampling lines (4, 8, …, 44 m) than the original ones. The simulation was performed using the original data (when the average CWD volume was 73 m3/ha), which also represented an inventory unit in which the CWD volume accounted for 10, 40 and 70% of the original value. These data were obtained by a random elimination of the appropriate portion of trees. The relationship between the single−tree−plot coefficient of variation (calculated for such a size of a sample unit which on average contains only one log) and the length of the sampling line was determined (figs. 2 and 3). On this basis the number of sample units necessary to obtain the assumed SE value of the target variable was determined (tab. 1). Using the data on labour consumption of individual measurement operations, the total working time was calculated for such a number of sample units that would guarantee obtaining the assumed SE of the CWD volume estimation (tab. 2). The total time of measurements was longer in an inventory unit with scarcer CWD resources (figs. 5 and 6). The optimal (due to the time of measurements needed to achieve the assumed SE of the CWD volume estimation) line length occurred within the range of 4−150 m. The use of sample units with a length of 60−150 m each was recommended in forests with the average CWD volume over 30 m3/ha, and with a length of 150−200 m in forest with sparser CWD resources.
    Źródło:
    Sylwan; 2019, 163, 01; 35-46
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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