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    Wyświetlanie 1-4 z 4
    Tytuł:
    Przemiany ubogich siedlisk borowych a aktualny stan roślinności runa w drzewostanach sosnowych kolejnych klas wieku w Nadleśnictwie Bolesławiec
    Consistency in the classification of oligotrophic forest sites and forest vegetation in Scots pine stands of successive age classes in Boleslawiec Forest
    Autorzy:
    Stefanska-Krzaczek, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/46321.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Nadlesnictwo Boleslawiec
    typologia lesna
    siedlisko boru suchego
    przemiany siedliska
    drzewostany sosnowe
    klasy wieku
    runo lesne
    sklad gatunkowy
    zmiany skladu gatunkowego
    bor chrobotkowy
    zanikanie siedlisk
    Źródło:
    Leśne Prace Badawcze; 2011, 72, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie roślinności gospodarczych borów sosnowych na tle typów siedliskowych lasu w Nadleśnictwie Turawa
    Vegetation diversity of the Scots pine stands in different forest sites in the Turawa Forest District
    Autorzy:
    Stefańska-Krzaczek, E.
    Pech, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1316236.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewostany sosnowe
    drzewostany gospodarcze
    bor sosnowy
    typy siedliskowe lasu
    zroznicowanie fitosocjologiczne
    zbiorowiska roslinne
    gatunki wskaznikowe
    bogactwo gatunkowe
    Nadlesnictwo Turawa
    forest typology
    indicator species
    secondary forest communities
    Pinus sylvestris
    Opis:
    The utility of phytocenotic indices in the diagnosis and classification of forest sites might be limited because of vegetation degeneration in managed forests. However, even in secondary communities it may be possible to determine indicator species, although these may differ from typical and well known plant indicators. The aim of this work was to assess the vegetation diversity of Scots pine stands in representative forest site types along a moisture and fertility gradient. In total 120 sample plots from Turawa forests were included in the study. These plots represented young (21–40 years) and old (> 80 years) Scots-pine-dominated stands. The forest sites were categorized according to Polish site classification. Four site categories were studied: Boew (very nutrient-poor and mesic sites), BMoew (nutrient-poor and mesic sites), BMw (nutrient-poor and moist sites), LMw (quite nutrient-rich and moist sites). The species composition of the forest patches studied hardly differed among forest site types. Almost all of the vegetation in site Boew was different from both moist site types (BMw and LMw). Sites Boew andLMwhad the exclusive species determined as site indicators. Moreover, young stands had their own site type indicator species which differed from old stands. Numerical classification showed that only two plant communities were widespread: Leucobryo-Pinetum in Boew and BMoew, and the community of Pinus sylvestris and Molinia caerulea in BMoew, BMw, LMw. In secondary communities typical indicator species may not be useful, but it is possible to determinate species that are locally unique to forest site type. Despite the convergence in the composition of the plant community resulting from tree stand unification, plant communities have the capacity for a more diverse composition. Tree stand conversion can increase phytocenotic diversity.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 1; 77-87
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie roślinności monokultur sosnowych na glebach piaszczystych Borów Tucholskich
    Diversity of vegetation in Scots pine monocultures on sandy soils in the Bory Tucholskie
    Autorzy:
    Stefańska-Krzaczek, E.
    Faltynowicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/990036.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Bory Tucholskie
    gleby piaszczyste
    drzewostany sosnowe
    zespol Leucobryo-Pinetum
    monokultury sosnowe
    roslinnosc
    zbiorowiska roslinne
    sklad gatunkowy
    leucobryo−pinetum
    vegetation classification
    stand rotation
    coniferous forest
    low−nutrient forest sites
    Opis:
    Scots pine stands are the most important forest type in Poland and the differentiation of the natural vegetation in these forests is well known. However, the intensive utilization causes the formation of the secondary communities, so that further studies of the vegetation diversity should be carried out with taking into consideration stand age and homogeneity of site conditions. The aim of this work is to assess the diversification of plant communities across the gradient of tree stand age. Scots pine stands on oligotrophic sites of the Przymuszewo Forest District were examined with dividing into six age classes ( 10, 11−20, 21−40, 41−60, 61−80, 81−120 years old). Numerical analysis allowed to differ 4 plant communities: non−forest community of Placynthiella−Cladonia sp. div. related to young stands before crown closure ( 10 years old), secondary forest community of Pinus sylvestris−Cladonia subulata related to young stands just after crown closure (11−20 years), forest communities of Leucobryo−Pinetum variant with Cladonia and typical variant – both related to stands older than 20 years. The identified communities differ in terms of species richness and vertical structure, but they are repetitive combinations of species which can be classified within hierarchical syntaxonomical system. They show common features with the communities of south−western Poland, but differ from plant communities of managed Scots pine forest in the continental part.
    Źródło:
    Sylwan; 2014, 158, 02; 99-106
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost różnorodności gatunkowej chrobotków jako efekt rębni zupełnej na ubogich siedliskach borowych
    Increase of Cladonia species diversity as a consequence of clear-cutting in nutrient-poor forest sites
    Autorzy:
    Stefańska-Krzaczek, E.
    Faltynowicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/994072.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedliska borowe
    siedliska oligotroficzne
    rebnie zupelne
    drzewostany sosnowe
    chrobotek
    Cladonia
    wystepowanie
    roznorodnosc gatunkowa
    scots pine forest
    managed forest
    ground lichens
    stand age classes
    Opis:
    Clear−cutting impacts site conditions seriously. However, in nutrient−poor sites the effects of stand removal can be minor than in nutrient−rich sites. The aim of this work was to assess whether the clear−cut can improve species diversity of ground Cladonia species, which decline has been observed in forest communities. In stands of different age classes (≤10, 11−20, 21−40, 41−60, 61−80, ≥81 years) in the Przymuszewo Forest District (northern Poland) ground Cladonia species and their cover were recorded on research plots (10×15 m). A total of 24 species were identified in the study area. There were more Cladonia species and they were more abundant in young stands (<20 years old) than in stands older than 60 years. Nine species are significantly more frequent and demonstrated high fidelity in young stands and only one was characteristic for old stands. Composition of Cladonia species depended primarily on stand age and subsequently on canopy or bryophyte cover. In nutrient−poor sites clear−cutting is favourable for Cladonia species diversity.
    Źródło:
    Sylwan; 2013, 157, 12; 929-936
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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