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    Tytuł:
    Typy intersterylne Heterobasidion annosum [Fr.]Bref. wystepujace w Lesnictwie Moronka, Nadlesnictwo Wegierska Gorka
    Autorzy:
    Lakomy, P.
    Rubys, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/823768.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    typy intersterylne
    wystepowanie
    grzyby
    huba korzeni
    Nadlesnictwo Wegierska Gorka
    Polska
    lesnictwo
    typ S
    Heterobasidion annosum
    typ F
    fitopatologia lesna
    Źródło:
    Sylwan; 1998, 142, 09; 5-11
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ceny surowca drzewnego w warunkach klęsk żywiołowych w Nadleśnictwie Węgierska Górka
    Timber prices after natural disasters in the Forest District of Wegierska Gorka
    Autorzy:
    Sikora, A.T.
    Ukalska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1317481.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Nadlesnictwo Wegierska Gorka
    kleski zywiolowe
    pozyskiwanie drewna
    surowce drzewne
    drewno
    sortymenty drewna
    ceny jednostkowe
    rynek drzewny
    natural disasters
    timber assortments
    unit prices
    the timber market
    Opis:
    The aim of the study was to determine the impact of increased timber logging after natural disasters on timber assortments, unit prices, as well as average prices of timber spruce and total timber. The net sales prices of the years 2004-2010, available from the database of the State Forests Information System (SFIS) for the Forest District of Węgierska Górka, were analysed and compared to the prices of selected forest districts within the Regional Directorate of State Forests in Cracow (RDSF). The forest districts were classified based on the volume of logged timber leading to a separation into two groups of two and six forest districts. Moreover, we tested for significance in the linear trends of relevant characteristics and determined confidence intervals. Furthermore, we calculated the rate of growth (decrease) of the unit prices. Our studies show a decrease in price of only some of the timber assortments despite a significantly increased supply. Price declines were observed for the average prices of timber spruce and total timber due to their lowered quality. The price of timber assortments was mainly determined by effects of macroeconomic factors.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 2; 201-212
    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
    Tytuł:
    Dynamika rozpadu drzewostanów świerkowych w Beskidzie Śląskim
    Decline of Norway spruce stands in the Beskid Slaski Mts.
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/986624.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Beskid Slaski
    drzewostany swierkowe
    zamieranie drzew
    swierk pospolity
    Picea abies
    rozpad drzewostanow
    System Informatyczny Lasow Panstwowych
    model wzrostu drzewostanu
    rozmiar uzytkowania rebnego
    zagrozenia lasu
    szkody od wiatru
    modele ryzyka uszkodzenia
    Nadlesnictwo Wisla
    Nadlesnictwo Wegierska Gorka
    Nadlesnictwo Ustron
    Nadlesnictwo Bielsko
    forest decline
    picea abies
    stand growth model
    harvest volume model
    wind damage risk model
    forest
    threat measure
    Opis:
    The dynamics of decline of Norway spruce forests in the Beskid Śląski Mts. (S Poland) in a 2007−2016 period was analysed based on data from the State Forests Information System. For that purpose we used modified growth model and wind damage risk model. The harvested timber volume (salvage cuts) exceeded the allowable harvest modeled with the stand growth model by 270% in years 2007−2010 (earlier period) and by 89% in the 2011−2016 (later period) period. The highest volume exceed (503 and 307% for earlier and later period respectively) was recorded for the Wisła Forest District. For the deadwood, the harvested volume exceeded the modeled one by 45% (162 in earlier, and 59% in later period). In the Węgierska Górka Forest District the harvested volume amounted to 287% of the modeled one (438 in earlier, and 70% in later period). The largest amount of wind−broken and wind−fallen trees was found in Wisła. Their volume amounted to 48% of the modeled volume (59 in earlier, and 40% in later period). The highest exceed occurred in Węgierska Górka (89 and 70% in the later period respectively). The species composition in the analysed region changed significantly as the share of spruce decreased and share of beech and fir increased (tab. 1). Changes in the aeral fraction of stands in age classes in the Bielsko and Ustroń forest districts were insignificant (tab. 2). For Węgierska Górka, share of stands in age class <20 years increased from 11 to 40%, while the older stands fraction decreased. Major changes occurred in Węgierska Górka and Wisła as far as structure of the stands in the risk damage factor classes is concerned. Fraction for the risk factor classes I and II increased, while for class VI decreased (tab. 3, fig. 4). The highest dynamics of the wind threat measure was recorded especially in Węgierska Górka, where its value decreased from 42 in 2009 to 19 in 2016 (fig. 5). The biggest changes are likely to occur in Wisła in the next years due to the very high fraction of spruce. A significant damage caused by wind may also be expected in Ustroń, where the threat measure is high.
    Źródło:
    Sylwan; 2018, 162, 03; 189-199
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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