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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wartość hodowlana polskich populacji sosny zwyczajnej na powierzchni doświadczalnej w Rogowie
    Silvicultural value of Scots pine provenances from Poland on the experimental plot in Rogow
    Autorzy:
    Szeligowski, H.
    Buraczyk, W.
    Drozdowski, S.
    Gawron, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/973327.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    sosna zwyczajna
    Pinus sylvestris
    proweniencje
    LZD Rogow
    leśnictwo
    wartość hodowlana
    doświadczenia prowieniencyjne
    scots pine
    provenance variation
    silvicultural value
    yield
    Opis:
    The paper analyses the variability of selected adaptive, growth and morphological parameters of 16 Scots pine provenances from Poland. Their silvicultural value and usefulness under the growth conditions in Central Poland were assessed. The empirical part was carried out on the experimental plot established in spring 1966 in Lipce Reymontowskie Forest Range, Rogów Forest Experimental Station. In subsequent surveys, the following characteristics were determined for each tree: diameter at the breast height, height, height of crown base and diameter of branches. All trees were also classified into 4 quality classes related to the stem straightness. The following analyses were performed: survival rate, course of height growth and diameter increment over age, variation of volume at single trees and whole stands level, diameter of branches, stem straightness, selected genetics and silvicultural properties. The assessment of silvicultural values pointed out that the best provenances include Dłużek, Karsko, Bolewice and Rychtal. Local provenances from Rogów and Spała are classified as the weak ones. Therefore in local Scots pine stands there is a need to improve quality, stability and yield. Obtained results deepen an existing knowledge on variability of Scots pine stands and demonstrate possibilities for verification of seed regionalization principles in Poland.
    Źródło:
    Sylwan; 2015, 159, 12; 997-1007
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność sosny zwyczajnej (Pinus sylvestris L.) w doświadczeniu serii IUFRO 1982 w Nadleśnictwie Rogów
    Variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO 1982 series experiment in Rogow Forest District
    Autorzy:
    Szeligowski, H.
    Buraczyk, W.
    Drozdowski, S.
    Studnicki, M.
    Bolibok, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/972943.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    sosna zwyczajna
    Pinus sylvestris
    proweniencje
    LZD Rogow
    wzrost roślin
    żywotność drzew
    leśnictwo
    wartość hodowlana
    powierzchnie doświadczalne
    scots pine
    provenance
    growth
    health status
    silvicultural quality
    Opis:
    This paper describes the variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO experiment located in Rogów (central Poland). The silvicultural quality and growth of 17 European provenances at the age of 28 years were examined, including height, diameter at breast height, standing volume, straightness of stem and health status. Populations from Poland (Spała, Miło−młyn, Rychtal), Germany (Betzhorn, Lampertheim), France (Haguenau) and Hungary (Pornóapáti) characterized by the best growth parameters. In contrast, pines from Northern (Russia, Sweden) and Southern (Turkey, Montenegro and Bosnia and Herzegovina) Europe were smaller and thinner and, as a result, with lower standing volume. The smallest differences of pine populations were found in tree height. The highest mean tree height (11.68 m) was reported for Rychtal (Poland) provenance, while the lowest (6.77 m) for Çatacik (Turkey). The overall mean tree height in the whole experiment was 9.83 m. Diameter at breast height (dbh) varied more than the tree height. The highest mean dbh (129.91 mm) was reported for Haguenau (France) provenance, while the lowest (72.85 mm) again for Çatacik (Turkey). The overall mean dbh for all provenances equaled 107.12 mm. The highest differences of pine populations were found in the standing volume. The highest standing volume (19.05 m3/ha) was obtained for Pornóapáti (Hungary) provenance, while the lowest (163.72 m3/ha) again for Çatacik (Turkey). In terms of silvicultural quality, the northern provenances were classified as the best ones because of high proportion of trees with straight stems. The largest share of tress with straight stems occurred in the population of Serebryanskoe from Russia (60.8%), while the smallest of Haguenau from France (6.9%). The populations from Southern Europe (Maočnica, Prusačka Rijeka and Çatacik) show poor adaptation to environmental conditions of central Poland.
    Źródło:
    Sylwan; 2016, 160, 03; 230-237
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost mikoryzowanych i niemikoryzowanych sadzonek sosny zwyczajnej (Pinus sylvestris L.) w warunkach zróżnicowanej wilgotności i żyzności podłoża
    Growth of mycorrhized and non-mycorrhized Scots pine (Pinus sylvestris L.) seedlings on substrates varying in moisture content and fertility
    Autorzy:
    Buraczyk, W.
    Szeligowski, H.
    Aleksandrowicz-Trzcińska, M.
    Drozdowski, S.
    Jakubowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/995070.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewa lesne
    gleby lesne
    gleby porolne
    wilgotnosc gleby
    zyznosc gleb
    sosna zwyczajna
    Pinus sylvestris
    sadzonki mikoryzowane
    grzyby mikoryzowe
    Hebeloma crustuliniforme
    sadzonki niemikoryzowane
    wzrost roslin
    scots pine
    seedling
    mycorrhization
    hebeloma crustuliniforme
    container−grown seedlings
    Opis:
    The article compares the impact of production technique, planting material, soil type and moisture on the growth of pine seedlings. The material used in the experiment comprised pines grown in containers to which controlled mycorrhization with the fungus Hebeloma crustuliniforme was applied, as well as pines that had not been mycorrhized. The seedlings were grown in pots on two types of substrate (forest and post−agricultural soil) varying in cohesiveness and fertility. Four moisture levels (20%, 30%, 40% and 50%) were adopted.
    Źródło:
    Sylwan; 2012, 156, 02; 100-111
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura i dynamika wielogeneracyjnych starodrzewów sosnowych występujących w obszarach ochrony ścisłej Kaliszki i Sieraków w Kampinoskim Parku Narodowym. Część 2. Procesy zamierania i dorastania oraz ich wpływ na rozkład grubości drzew
    Structure and dynamics of uneven−aged, Scots pine−dominated, old−growth stands in Kaliszki and Sieraków strict reserves in Kampinos National Park. Part 2. Tree mortality and recruitment processes and their effects on tree diameter distributions
    Autorzy:
    Brzeziecki, B.
    Zajączkowski, J.
    Olszewski, A.
    Bolibok, L.
    Andrzejczyk, T.
    Bielak, K.
    Buraczyk, W.
    Drozdowski, S.
    Gawron, L.
    Jastrzębowski, S.
    Szeligowski, H.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/979128.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    demographic non−equilibrium
    diameter structure
    long−term study
    old−growth forest
    permanent study
    plot
    scots pine
    strict protection
    Opis:
    Two fundamental demographic processes (tree recruitment and mortality) are analyzed for forest stands growing on permanent study plots located in strictly protected Scots pine−dominated, old−growth stands of Kampinos National Park (central Poland). The major implications of the observed demographic trends for the general shape of tree size distributions are determined, as well. During the past ca 30 years, in the stands sampled, there was a pronounced lack of balance between mortality and recruitment processes. Mortality rate was eight times higher than recruitment rate. Eventually, there was a net significant decline in population density, observed for all major tree species, including Scots pine, pedunculate oak, silver and downy birch, and black alder. As mortality processes affected mainly smaller trees, there was also a significant deterioration of the general demographic status of most important tree species. This effect was shown by the change of the overall shape of diameter distributions over the study period: from reverse J−shaped to flat curves running nearly parallel to X−axis. The values of recruitment rates were markedly lower, and the values of mortality rates – significantly higher, than analogous values characterizing comparable forests (e.g., those obtained for the natural stands of Białowieża National Park). Low recruitment rates, as obtained for Kampinos stands, suggest that presently, in the local, Scots pine−dominated, old−growth stands, the general conditions for forest regeneration and for maintaining a long−term demographic stability are unfavorable. Most probably, the regeneration of this type of forest has an episodic, ‘wave−like’ character and corresponds to the ‘catastrophic’ model, according to which the successful regeneration of current dominants (especially Scots pine, silver and downy birch, black alder) must be preceded by a stand−initiating (stand−replacing) disturbance, leading to total or partial, but heavy, destruction of the currently existing stand. At the moment, it would be difficult to predict, however, if and when such a disturbance will affect the stands under investigation. Thus, we predict that in the nearest future at least, the state of overall demographic unbalance will continue or even increase.
    Źródło:
    Sylwan; 2020, 164, 06; 443-453
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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