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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wskazniki zroznicowania struktury drzewostanu
    Autorzy:
    Brzeziecki, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/815409.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    przestrzenne zroznicowanie piersnic
    zroznicowanie gatunkowe
    rozmieszczenie drzew w przestrzeni
    pozycja biosocjalna drzew
    lesnictwo
    stopien zmieszania drzew
    wskazniki
    struktura drzewostanu
    segregacja przestrzenna drzew
    Źródło:
    Sylwan; 2002, 146, 04; 69-79
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wprowadzenia modrzewia na różnorodność i liczebność chrząszczy ściółkowych w borach mieszanych na terenie Litwy
    Effect of larch admixture on forest litter beetle (Coleoptera) communities diversity and number of carabid individuals in mixed coniferous habitats of Lithuania
    Autorzy:
    Tamutis, V.
    Skłodowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008707.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Litwa
    drzewostany mieszane
    drzewa lesne
    gatunki domieszkowe
    modrzew europejski
    Larix decidua
    sciolka lesna
    owady
    chrzaszcze
    Coleoptera
    liczebnosc
    zroznicowanie gatunkowe
    hibernating beetles
    larch
    litter
    species diversity
    Opis:
    During winter time, beetle individuals were collected from soil samples taken from a Scots pine culture, an old−growth Scots pine forest, and a European larch culture and old−growth. The following research questions were put forward: (1) Does an admixture of larch in the forest stand contribute to increase in species diversity as well as the numbers of beetle individuals hibernating in the forest litter? (2) Does an admixture of larch in the forest stand result in an increased proportion of beetle species – potentially pests for the forest trees, in the carabid communities? We analyzed data with use PCA, Ward method. The first question should be answered positively. The second question should be answered negatively. The analyses of beetle fauna overwintering in the forest litter as carried out in this paper confirmed the purposefulness of larch introduction as an admixture in pine stands in Lithuania.
    Źródło:
    Sylwan; 2012, 156, 08; 581-592
    0039-7660
    Pojawia się w:
    Sylwan
    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:
    Pionowe zróżnicowanie bogactwa i składu gatunkowego myko-, licheno- i briobioty drzew powiatrołomowych w Kampinoskim Parku Narodowym
    Vertical differentiation of the richness and species composition of the myco-, licheno- and briobiota of windthrown trees in Kampinos National Park
    Autorzy:
    Zaniewski, P.T.
    Szczepkowski, A.
    Gierczyk, B.
    Kujawa, A.
    Ślusarczyk, T.
    Fojcik, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/985753.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    parki narodowe
    Kampinoski Park Narodowy
    drzewa lesne
    wiatrolomy
    dab bezszypulkowy
    Quercus petraea
    Quercus x rosacea
    brzoza brodawkowata
    Betula pendula
    sosna zwyczajna
    Pinus sylvestris
    epifity
    epiksylity
    grzyby makroskopijne
    grzyby mikroskopijne
    porosty
    grzyby naporostowe
    mszaki
    bogactwo gatunkowe
    sklad gatunkowy
    zroznicowanie pionowe
    biodiversity
    quercus petraea
    q. × rosacea
    betula pendula
    pinus sylvestris
    rarefaction curve
    Opis:
    Vertical distribution of species richness of various groups of organisms within trees is still insufficiently understood. The reason for this are, among others, the difficulties in accessing standing trees. The aim of the study was to determine the differentiation of species richness of fungi, lichens and lichenicolous fungi and bryophyte of three tree species (oak, birch and pine) within windthrow areas in the Kampinos National Park (central Poland). Ten individuals of each tree species were chosen. They were only thrown, not broken, without serious damage, still alive and easily accessible. The investigations of species composition were performed in five parts of each tree: trunk bottom, lower trunk, upper trunk, lower crown and upper crown. Individual parts of the trees were measured, than their surface and volume were determined. The species richness of the studied groups of organisms was calculated using rarefaction curves based on the number of samples, volume and area of the distinguished tree parts. Species composition changes of the tree parts were described using non−metric multidimensional scaling. The most important parts of trees for fungi were the crowns of trees, in particular oak’s. The highest richness of lichens was found within the crown of oaks, however they were recorded within all of the distinguished tree parts. The highest richness of bryophytes was recorded in the lower crown of oak and the trunk base of birch, but this group of organisms generally did not inhabit the birch and pine crowns. In the case of rarefaction curves based on the number of samples, the large positive meaning of the oak was observed, however the observed pattern was different when the volume and surface were taken into account. The general species richness of the studied taxa was similar for three tree species, the pine was distinguished positively in case of fungi, birch – in the case of lichens and oak – in the case of bryophytes. The species of trees differ from each other in terms of the species composition of the studied groups of organisms. We also observed the gradual change in the species composition from the base of the trunk to the upper crown.
    Źródło:
    Sylwan; 2019, 163, 12; 980-988
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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