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    Wyświetlanie 1-3 z 3
    Tytuł:
    Rekreacyjna funkcja lasów Nadleśnictwa Krynki w opinii publicznej
    Recreational function of forests in the Krynki Forest District in the public opinion
    Autorzy:
    Gołos, P.
    Sikora, A.T.
    Konieczny, A.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/979375.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lasy
    funkcje lasu
    funkcje rekreacyjne
    zagospodarowanie rekreacyjne
    opinia publiczna
    leśnictwo
    Nadleśnictwo Krynki
    RDLP Białystok
    timber quality variation
    defects
    pinus sylvesrtis
    Opis:
    The aim of the research was to determine the impact of selected habitat and age features on the qualitative properties of Scots pine (Pinus sylvestris L.). The research was carried out on forest stands from the Olesno, Wymiarki and Kalisz Pomorski forest districts (western Poland). The collected data provided information on technical and dimensional properties as well as quality classes for logs from Scots pine stands. The severity of the occurrence of seven basic wood defects, identified on the perimeter and length of the model log was identified and described. The collected data was used to determine the distribution of defect groups. For distributions of defect groups, normal distribution criteria were met. For the Scots pine assortments, the ANOVA showed that the hypothesis of the occurrence of an equal number of defects on the side of the logs in three separated classes of WA0, WB0 and WC0 of the quality of the raw material should be rejected. For the Tukey test, the results indicate that there is no reason to reject this hypothesis. The obtained p−value in this case is 0.09 for WB0 and WC0. There was no influence of the diameter of the logs and the habitat on the number of defects. Number of defect groups is correlated with the distance from the butt in Kalisz Pomorski and Wymiarki forest districts but not in Olesno. In that case the increase in the number of defect groups has its maximum in the zone of 6−8 m of the log length.
    Źródło:
    Sylwan; 2019, 163, 11; 913-923
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zagrożenia dla ekosystemu leśnego i odwiedzających obszary leśne w opinii turystów w Nadleśnictwie Krynki
    Threats to the forest ecosystem and visitors in forest areas in the opinion of tourist in the Krynki Forest District
    Autorzy:
    Konieczny, A.A.
    Gołos, P.
    Sikora, A.T.
    Powiązania:
    https://bibliotekanauki.pl/articles/974060.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lasy
    leśnictwo
    zagrożenia lasu
    zagrożenia człowieka
    turyści
    opinia społeczna
    ekosystemy leśne
    Nadleśnictwo Krynki
    quantitative survey of public opinion
    threats to the forest ecosystem
    threats to tourists
    Opis:
    The paper presents declarative opinions of 239 tourists who visited the area of the Krynki Forest District in July−September 2013. The opinions were collected in direct interviews using of a questionnaire. The analysis distinguished two groups of respondents: 135 people (56,5%) who visited the forest district for the first time, and 104 respondents (43,5%) for whom it was the subsequent visit. We analysed the opinion of tourists on such problems as: (1) anthropogenic threats to the forest ecosystem, (2) factors constituting a threat to visitors to forest areas, and (3) forms of recreation and rest that can be implemented in forest areas. To examine the significance of mean differences between analysed groups of respondents that differ in experience and hypothetical readiness to declare the amount of WTP> 0, the Mann−Whitney test was used. Respondents considered forest fires and garbage left in the forest as the greatest threat to forest ecosystems, while among factors threatening people resting in forest areas, respondents pointed to the natural factors such as vipers, ticks and mosquitoes. Respondents considered that admissible forms of recreation and rest in forest areas are sport and cross−country races, horse riding and cycling, while ones that pose a threat to forest ecosystems, e.g. organization of mass events or bonfires and family events with barbecue, should be prohibited. No impact on differences in the opinions declared by the respondents, their tourist experience or readiness to declare the amount of WTP was disclosed.
    Źródło:
    Sylwan; 2020, 164, 01; 25-31
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena możliwości włączenia Lasów Sobiborskich do sieci obszarów Important Birds Areas oraz obszarów specjalnej ochrony ptaków
    Possibility of inclusion of the Sobibór Forests into Importand Birds Areas and Special Protection Areas networks
    Autorzy:
    Kanclerska, K.
    Karpińska, O.
    Woźniak, B.
    Grzębkowski, M.
    Aftyka, S.
    Belcik, M.
    Bożycki, L.
    Celej, M.
    Chodkiewicz, T.
    Kuszner, M.
    Litwiniak, K.
    Pawelec, M.
    Pietrasz, K.
    Rożycki, A.L.
    Sikora, D.
    Smith, L.
    Stasiak, K.
    Szewczuk, W.
    Sliwiński, S.
    Tylkowski, S.
    Woźniak, M.
    Woźniak, P.
    Wójciak, J.
    Żołądek, K.
    Keller, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/985820.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    ochrona przyrody
    Lasy Sobiborskie
    walory przyrodnicze
    fauna
    ptaki
    ochrona zwierzat
    Europejska Siec Ekologiczna Natura 2000
    obszary specjalnej ochrony ptakow
    bird protection areas
    nature 2000 network
    Opis:
    One of the greatest challenges of nature conservation is to identify and locate networks of protected areas, which will preserve the biodiversity. The paper aims to show the ornithological value of the Sobibór Forests (E Poland) and to emphasize the fact that the network of Important Bird Areas (IBA) and Special Protection Areas within Natura 2000 (SPA) may require additions. The study was conducted in the period of 2008−2016, mainly on forested areas occupying 256 km2. The Sobibór Forests are characterized by a large diversity of habitats, but are mainly covered by Scots pine Pinus sylvestris. High diversity of wetlands and marshlands make the Sobibór Forest unique within the country. Three methodologies were used to estimate population size of chosen species: sampling, census and random observations. 31 species from Annex I of the Birds Directive plus 25 species of SPEC or non−SPECE category were observed which allows to consider this area as one of the most valuable for avifauna in Poland. Six breeding species classify the Sobibór Forests as the IBA and SPA. These species include Black Stork Ciconia nigra (8−13 breeding pairs), Common Crane Grus grus (80−120 breeding pairs), Grey Great Owl Strix nebulosa (0−7 breeding pairs i.e. 50−100% of Polish breeding population), Eagle Owl Bubo bubo (6 breeding pairs), White−backed Woodpecker Dendrocopos leucotos (40−70 breeding pairs) and Grey−headed Woodpecker Picus canus (20−40 breeding pairs). Six other species show potential for qualification, but not enough data has been collected yet. The list of this specie includes: Short−toed Snake Eagle Circaetus gallicus, Common Snipe Gallinago gallinago, Stock Dove Columba oenas, European Nightjar Caprimulgus europaeus, Collared Flycatcher Ficedula albicollis and Bluethroat Luscinia svecica. The Sobibór Forests occupy a small area compared to other IBA forests. However, the number of breeding species classifies the surveyed area as 7th among other IBAs. Moreover all eligible species may be considered as a bioindicators of the natural state of the forest. This is proof of the high natural value of this area.
    Źródło:
    Sylwan; 2018, 162, 02; 146-154
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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