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    Wyświetlanie 1-5 z 5
    Tytuł:
    Chrzaszcze saproksyliczne jako wskazniki odksztalcen ekosystemow lesnych borow sosnowych
    Saproxylic beetles as indicator of deformation of pine forest ecosystems
    Autorzy:
    Gutowski, J.M.
    Buchholz, L.
    Kubisz, D.
    Ossowska, M.
    Sucko, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/45935.pdf
    Data publikacji:
    2006
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    owady saproksyliczne
    drzewa martwe
    ekosystemy lesne
    sklad gatunkowy
    bor sosnowy
    waloryzacja ekologiczna
    chrzaszcze
    lesnictwo
    Źródło:
    Leśne Prace Badawcze; 2006, 4; 101-144
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybiórczość siedliskowa żuka leśnego Anoplotrupes stercorosus (Scriba) i żuka wiosennego Trypocopris vernalis (L.) (Coleoptera: Geotrupidae) w borze sosnowym świeżym w zależności od wieku drzewostanu
    Habitat selection by two species of dung beetle, Anoplotrupes stercorosus (Scriba) and Trypocopris vernalis (L.) (Coleoptera: Geotrupidae), changes with stand age in a fresh pine forest
    Autorzy:
    Marczak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1318489.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    entomologia lesna
    owady
    Geotrupidae
    zuk lesny
    Anoplotrupes stercorosus
    zuk wiosenny
    Trypocopris vernalis
    wystepowanie
    wspolwystepowanie
    wybiorczosc siedliskowa
    bor sosnowy swiezy
    wiek drzewostanu
    ecology
    afforestation
    NW Poland
    Opis:
    In Poland, Anoplotrupes stercorosus (Scriba) and Trypocopris vernalis (L.), are very common throughout the whole country and belong to the most numerous representatives of the Geotrupidae family. Research on the habitat selectivity of Anoplotrupes stercorosus (Scriba) and Trypocopris vernalis (L.) was conducted in the years 2004-2006 in the Wipsowo Forest Inspectorate (Regional Forest Department in Olsztyn). The dung beetles were collected using Barber traps installed in a clear-cut comprising, 2, 3, 5, 8, and 16 year old thickets and tree-stands aged 30, 45, 60, 80, 100 and 135 years. According to phytosociology these tree-stands are a plant community of fresh continental pine forest (Peucedano-Pinetum), while typologically all sites are within the fresh coniferous forest. During the course of this research 29197 individual dung beetles were captured, including 23137 individuals of A. stercorosus and 6060 individuals of T. vernalis. Both species were caught at each research site. At nearly all sites A. stercorosus dominated. Only within the clear-cut area were the number of T. vernalis was higher than at other sites. Very many individuals of T. vernalis were present in the clear-cut area but their numbers decreased gradually with increasing tree-stand age. An opposite situation was noted for A. stercorosus. There was an interesting statistically-significant decrease in the abundance of both species in the middle-aged tree-stands – 30, 45 and 60-year-old. Analyzing the seasonal dynamics revealed one peak in the population of T. vernalis in July, whereas there were two peaks in the population of A. stercorosus: a small peak in July and a much larger peak in September. There was a significant negative correlation between the numbers of T. vernalis and tree-stand age (p<0.05, r =-0.57), and a significant positive correlation between the A. stercorosus population size and tree-stand age (p<0.05, r = 0.48).
    Źródło:
    Leśne Prace Badawcze; 2013, 74, 3; 227-232
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura i dynamika opadu organicznego w wybranych drzewostanach Slowinskiego Parku Narodowego w latach 2003-2005
    The structure and dynamics of litterfall in forest stands in the Slowinski National Park in 2003-2005
    Autorzy:
    Parzych, A.
    Trojanowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/46069.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Slowinski Park Narodowy
    sklad frakcyjny
    opad organiczny
    bor sosnowy
    drzewostany sosnowo-brzozowe
    zespol Vaccinio uliginosi-Betuletum pubescentis
    dynamika opadu
    biomasa
    struktura
    zespoly roslinne
    zespol Empetro nigri-Pinetum
    Źródło:
    Leśne Prace Badawcze; 2009, 70, 1; 41-48
    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:
    Tempo i kierunki zmian składu gatunkowego drzewostanów naturalnych w wybranych zbiorowiskach leśnych Puszczy Białowieskiej
    Rate and direction of changes in tree species composition of natural stands in selected forest associations in the Bialowieza Forest
    Autorzy:
    Paluch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1313006.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    drzewostany naturalne
    zbiorowiska lesne
    sklad gatunkowy
    bor swiezy brusznicowo-sosnowy
    bor mieszany trzcinnikowo-swierkowy
    grad miodownikowo-grabowy
    grad typowy
    grad trzcinnikowy
    leg olszowo-jesionowy
    zmiany skladu gatunkowego
    podobienstwo skladu gatunkowego
    stale powierzchnie obserwacyjne
    hornbeam expansion
    natural stands
    permanent study plots
    ash dieback
    Białowieża forest
    Opis:
    The main aim of the study was to determine changes in the species composition and structure of natural tree stands in the Białowieża Forest (BF), which occurred in the years 1975-2012, as well as to evaluate their trends, directions and rate. The study was carried out on 121 permanent research plots (50×50m), which represented the most important forest phytocenoses in BF, i.e. fresh pine-whortleberry forest Vaccinio vitis-idaeae-Pinetum Sokoł. 1980, fresh mixed spruce-reed grass forest Calamagrostio-Piceetum Soko³. 1968, oligotrophic form of hornbeam - bastard balm forest Melitti-Carpinetum Soko³. 1976, different forms of linden- hornbeam forest: Tilio-Carpinetum Tracz. 1962, alder-ash forest Fraxino-Alnetum W. Mat. 1952 and sub-boreal spruce forest on bog moss Sphagno girgenshonii- Piceetum Polak. 1962. On the plots selected, there was measured the diameter at breast height (DBH) of all trees, as well as every tree and shrub up to 1.3 m high was counted and described with reference to species. The measurements and observations were regularly repeated every 10-15 years. The results showed that over the last period of nearly 40 years, there has increased a share of common hornbeam Carpinus betulus L. in the structure of forest stands in numerous BF associations. This tree species has expanded into different forest habitats including poor, medium fertile and wetland sites. The results obtained indicate a trend towards formation of linden-hornbeam forests in BF phytocenoses. The most evident changes were recorded in hornbeam - bastard balm forest. In natural conditions of the majority of forest associations analyzed, there prevailed hornbeam trees in forest regeneration, except for the stands in fresh mixed pine forest and spruce forest on bog moss. In the latter two cases, hornbeam showed signs of its presence in the last observation period. Norway spruce (Picea abies L.) retreated into oligotrophic forest associations. In the recent decades, spruce populations have been dramatically reduced in the stands in mixed coniferous and different kinds of broadleaved forests. There have also decreased a share of light-demanding tree species, such as Scots pine (Pinus silvestris L.), pedunculate oak (Quercus robur L.) and silver birch (Betula pendula L.) in BF tree stands, including their regeneration-layer. Especially, Scots pine regeneration has not been successful. In the short period of time (about 15 years) there has been observed rapid and outsized reduction of ash Fraxinus excelsior L. populations in natural conditions of alder-ash forests. All through the last 10-15 years, there has been also observed increased rate of change in stand species composition. The trend and rate of change in stand species composition point out to a possibility of human intervention towards stimulation of natural regeneration so as to preserve valuable populations of threatened tree species in the Białowieża Forest.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 4; 385-406
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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