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    Wyświetlanie 1-3 z 3
    Tytuł:
    Występowanie czeremchy amerykańskiej (Prunus serotina Ehrh.) w Lasach Państwowych
    Occurrence of black cherry (Prunus serotina Ehrh.) in the State Forests in Poland
    Autorzy:
    Bijak, S.
    Czajkowski, M.
    Ludwisiak, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1313126.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewa lesne
    gatunki inwazyjne
    czeremcha amerykanska
    Prunus serotina
    wystepowanie
    warunki siedliskowe
    warunki glebowe
    lasy panstwowe
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    black cherry
    ecological conditionsd
    Opis:
    Among the invasive tree species identified in Polish forests, black cherry (Prunus serotina Ehrh.) appears to pose the greatest threat. The objective of this study was i), to determine the abundance of this species in the forests managed by the State Forests National Forest Holding (PGLLP) and ii), to characterise the ecological conditions that it is found in. The source data was obtained from the State Forests Information System (SILP) database. In Polish forests, black cherry mostly occurs as an understory plant and is present in a total area of 99,185 hectares, which is 1.4% of the forest area under the management of the PGLLP. Although Prunus serotina can be found within a wide range of habitats, it most commonly occurs on sites that can be considered average in terms of fertility (mixed coniferous and mixed deciduous types) developed primarily on rusty soils (podzols).
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 4; 359-365
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bieganie na terenach leśnych - analiza działań Lasów Państwowych
    Running in forest areas - an analysis of activities undertaken by State Forests
    Autorzy:
    Ciesielski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292423.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lasy
    rekreacja
    bieganie
    biegi
    trasy biegowe
    spoleczne funkcje lasu
    funkcje rekreacyjne
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    recreation
    running events
    running paths
    social (non-productive) functions of forest
    the State Forests in Poland
    Opis:
    A growing need to lead a healthy lifestyle and to spend more time in nature causes an increased pressure on forests, which renders their social functions more and more important. In order to meet people’s expectations, the State Forests undertake several actions to make forests more available to the public including the organization of running events in forests and the development of a network of recreational and running paths. In order to describe these actions, an online survey was conducted among the workers of forest districts. Additional data such as information published on the State Forests’ website, Facebook and runners’ blogs, was included in the analysis as well. 283 forest districts participated in the electronic survey. The results indicate that the State Forests actively participated in promoting running events in forests totaling 488 running events in 2014 and 779 between January and October 2017, which constitutes an increase by approximately 60%. The average number of running events in the forest districts during the analyzed period was 9.5. Most of them took place in forest districts within city agglomerations and in the mountains. The State Forests supported over 20% of running events organized in the areas they administer. They had also started numerous initiatives (such as "Wolność w naturze", "Zielony punkt kontrolny" and "BiegamBoLubię Lasy") that were evaluated positively by their participants (according to Facebook). In conclusion, it is clear that the State Forests do promote recreation in forests and forest education by supporting public events.
    Źródło:
    Leśne Prace Badawcze; 2018, 79, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Koszty działalności podstawowej w warunkach klęsk żywiołowych w Nadleśnictwie Węgierska Górka
    The main costs of natural disasters in the Forest District of Wegierska Gorka
    Autorzy:
    Sikora, A.T.
    Ukalska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1312782.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    nadlesnictwa
    kleski zywiolowe
    skutki ekonomiczne
    gospodarka lesna
    dzialalnosc podstawowa
    koszty jednostkowe
    analiza kosztow
    Nadlesnictwo Wegierska Gorka
    natural disasters
    the core activity of Forest District
    unit costs
    the synthetic index of costs
    Opis:
    The aim of the study was to determine the impact of increased forest management due to natural disasters on particular core unit costs. We analysed the direct costs for the Forest District of Wêgierska Górka in the years 2004–2010 based on information from the State Forests Information System (SFIS) database compared with selected forest districts within the Regional Directorate of State Forests in Cracow (RDSF). The forest districts were divided into two groups with two and six forest districts and confidence intervals around the mean were determined and the significance of linear regressions of the considered characteristics was tested. Additionally, the growth rate (decrease) of the unit cost was calculated. Our studies showed that natural disasters affect only certain unit costs regardless of the intensity of the forest management. The increase in unit costs resulted in economic losses in forest management. A full long-term analysis of the economic impact of natural disasters should be done, taking into account the cost of reforestation of destroyed areas which may become apparent only some years later.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 3; 263-275
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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