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    Wyświetlanie 1-8 z 8
    Tytuł:
    Osobliwości demutacji roślinności na stokach o różnej ekspozycji kamieniołomu w Kazimierzu Dolnym nad Wisłą
    Peculiarities of demutation vegetation on the slopes of different exposures quarry in Kazimierz Dolny on the Vistula River
    Autorzy:
    Soroka, M.
    Woźniak, A.
    Kutnik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/11236737.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    metoda Braun-Blanqueta
    kamieniolomy
    Kazimierz Dolny
    zbiorowiska roslinne
    uprawa roslin
    odmiany roslin
    ekspozycja terenu
    analiza fitosocjologiczna
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura; 2016, 71, 2; 81-92
    0365-1118
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ekspozycja stoków wydm w Kotlinie Toruńskiej a wybrane elementy ekosystemu boru sosnowego – wstępne wyniki badań
    Preliminary studies on the influence of dune-slope exposure on a pine forest ecosystem in the Torun Basin
    Autorzy:
    Sewerniak, P.
    Bednarek, R.
    Szymanska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/46376.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Kotlina Torunska
    wydmy srodladowe
    stoki
    ekspozycja terenu
    warunki siedliskowe
    temperatura powietrza
    wilgotnosc powietrza
    gleby
    wilgotnosc gleby
    runo lesne
    drzewostany sosnowe
    Źródło:
    Leśne Prace Badawcze; 2011, 72, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura i dynamika przyrostu grubosci drzew w drzewostanach swierkowych masywu Skrzyczne
    Autorzy:
    Ochal, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/816253.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    dynamika przyrostu
    ekspozycja terenu
    swierk
    Picea
    wysokosc nad poziomem morza
    czynniki siedliska
    drzewostany swierkowe
    lasy gorskie
    przyrost grubosci
    lesnictwo
    drzewa lesne
    Skrzyczne
    Źródło:
    Sylwan; 2000, 144, 01; 75-85
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wysokości otaczającego drzewostanu, wystawy i pochylenia terenu na mikroklimat adiacyjny na gnieździe - wyniki modelowania
    Effect of surrounding stand height, terrain aspect and inclination on radiation microclimate on the gap - results of the modelling
    Autorzy:
    Bolibok, L.
    Brach, M.
    Szeligowski, H.
    Orzechowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989732.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    rebnie gniazdowe
    odnowienia lasu
    odnowienia na gniazdach
    gniazda
    warunki radiacyjne
    srednica gniazda
    wysokosc drzewostanu otaczajacego
    warunki swietlne
    nachylenie terenu
    ekspozycja terenu
    zmiany warunkow radiacyjnych
    modelowanie
    radiation
    aspect
    inclination
    gap size
    modelling
    Opis:
    Different kinds of solar radiation (direct, diffuse) shape microclimate of forest gaps and have significant influence on establishment and growth of young trees. Adjustment of the shape and size of artificial gaps could create favourable conditions that meet the demands of particular species. Unfortunately there is lack of publications concerning this topic, which could be used directly for silvicultural planning in Polish conditions. Empirical assessment of radiation regimes in a wide range of different shaped gaps is impossible from practical reasons, so modelling in ArcGis environment was used instead. Gaps of different shape and size were modelled as elliptical depression in terrain by the use digital elevation model. The Solar Radiation tool was used to model direct and global radiation on the bottom of the gaps with area varying between 2 and 50 are surrounded by stands of height between 15 to 35 meters. The outcome of modelling was presented in form of nomograms. Additional series of analyses was created to describe the influence of terrain aspect and inclination on solar radiations supplies on the forest floor in gaps. Presented nomograms could be helpful in silvicultural planning, because they could be used to design artificial gaps with expected solar radiations supplies.
    Źródło:
    Sylwan; 2015, 159, 10; 813-823
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształtowanie się jakości surowca świerkowego w zależności od wysokości nad poziomem morza i wystawy
    The effect of altitude and exposure on the quality of spruce timber
    Autorzy:
    Michalec, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/973869.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Picea abies
    jakosc
    czynniki siedliska
    ekspozycja terenu
    leśnictwo
    drzewa leśne
    świerk pospolity
    drewno świerkowe
    wysokość nad poziomem morza
    spruce
    timber quality
    wood defects
    altitude
    exposure
    Polska
    Opis:
    Mountain regions are the main natural ranges of spruce forests in Poland. Their occurrence and growth in these areas is associated with the height above sea level and exposure. The attempt of the study was to determine the impact of these two characteristics on the quality of spruce timber. The research was carried out on 20 sample plots located in the Sudety (8 plots) and the Carpathians (12 plots). The trees growing on the selected plots were examined for their diameter at breast height and height, the quality of standing timber and the kinds and varieties of wood defects on tree stems. As a result of the conducted analyses it could generally be stated that forest stands from the lower montane zone produced higher quality timber in terms of both volume and quality and that the best quality stands were on the western and the poorest ones – on the southern slopes.
    Źródło:
    Sylwan; 2011, 155, 06; 373-383
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ rzeźby terenu na bonitację i cechy wzrostowe drzewostanów sosnowych na wydmach Kotliny Toruńskiej
    Impact of land relief on site index and growth parameters of Scots pine stands on inland dunes in the Torun Basin
    Autorzy:
    Sewerniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989617.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    rzezba terenu
    ekspozycja terenu
    drzewostany sosnowe
    sosna zwyczajna
    Pinus sylvestris
    wzrost roslin
    wysokosc drzew
    piersnice drzew
    smuklosc drzew
    bonitacja drzewostanow
    topography
    pinus sylvestris
    slope aspect
    tree growth
    forest site
    soil
    inland dunes
    Opis:
    The aim of the study was to determine the impact of land relief on site index and growth parameters (height, diameter, slenderness) of Scots pine (Pinus sylvestris) stands on inland dunes in the Toruń Basin (N Poland). The study was conducted on 150 plots situated on north− and south−facing dune slopes (54 pairs of twin plots) as well as in intra−dune depressions (42 plots). Height and diameter of ten the thickest pines per 0.1 hectare was measured, and next site index as a potential height of a stand at the age of 100 years was calculated. As the results of the used equation, site index was strongly (R²=0.58) negatively biased to age, so the bias was removed using an elaborated regression model. For stands older than ca. 20 years, the clear higher site index values as well as higher heights and diameters were found for intra−dune depressions than for slopes of the two studied aspects. This was explained by the occurrence of much more fertile and moister soils in depressions. The only age class for which the advantage of site index and growth parameters was not stated for depressions was the youngest class (≤20 years old). This was likely caused by the competitive impact on young pines of Calamagrostis epigejos which prefers intra−dune depressions on inland dunes and forms in forest floor usually dense cover in this position. Impact of contrasting slope aspect was clearly related in the study to age of a stand. For the youngest studied age class both site index values as well as heights and diameters were lower on north− than on south−facing slopes. This was explained by the effect of weeds which form more dense cover on slopes of this aspect than on sunny slopes. For older stands; however higher site index values as well as heights and diameters were revealed for north−facing slopes, due to pines likely took advantage of higher moisture of soils occurring in this place. With reference to slenderness, regardless stand age the parameter was regularly the highest for north− than both for south−facing slopes and depressions. Because of the revealed distinct higher productivity of intra−dune depressions in normally dry and poor in nutrients dune landscape, it could be reasonable to use the depressions to introduce admixtures of broadleaved tree species into pine monocultures on inland dunes.
    Źródło:
    Sylwan; 2016, 160, 08; 647-655
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Intensywność mineralizacji igieł w borze sosnowym w odniesieniu do warunków siedliskowych i mikrobiologicznych stoków wydm o kontrastowej ekspozycji
    Rate of mineralization of needles in Scots pine stand in relation to site and microbiological conditions occurring on dune slopes of contrasting aspects
    Autorzy:
    Sewerniak, P.
    Jasińska, J.
    Golińska, P.
    Składanowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989754.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedliska lesne
    bor sosnowy
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    igly sosny
    mineralizacja
    warunki siedliskowe
    wilgotnosc gleby
    temperatura gleb
    warunki mikrobiologiczne
    ekspozycja terenu
    wydmy
    scots pine
    forest site
    relief
    nutrient cycling
    soil microorganisms
    Opis:
    The aim of the study was to determine the rate of mineralization of needles in a pine stand in relation to site and to microbiological conditions occurring on dune slopes of contrasting aspects. The research was conducted in the old−growth pine forest overgrowing a latitudinally located dune in the Bydgoska Forest (N Poland). On contrasting dune slopes (northern and southern) rate of mineralization of pine needles was investigated in the 2−years experiment (2012−2014) with the litterbag method. Besides, following investigations were conducted in the middle part of both slopes: 1. dynamics of soil moisture and soil temperature were measured at a depth of 3 cm for 18 days during the 2013 growing season (interval of 2 weeks was applied) and 2. populations of bacteria and fungi were determined for all subhorizons of organic soil horizon (Ol, Of, Oh) as well as for a mineral horizon (AEs) of both soils. Weight loss of needles was found to be higher on northern than on a southern slope what was consequently stated for all 4 terms of taking measurements (6, 12, 18 and 24 months after placement of litterbags). The discrepancy has increased with time and after 2 years it equaled 14.7% when the loss was 61.1% for northern and 46.4% for a southern slope. It could be surprising that such differences were found in spite a sunny slope was characterized by stated in a study higher soil temperature. It should have a stimulating effect on mineralization of organic material; however a soil located on a southern slope was also found as much drier. Thus, the periodic deficiency of soil moisture was indicated as a limiting factor for occurrence of both bacteria and fungi on a southern slope due to the numbers of both groups of microorganisms were much lower on the slope than on a northern aspect. Conditioned by more favourable site parameters, higher number of microbial population occurring on a shadow slope could explain higher rate of mineralization of needles stated for the slope aspect. The moisture factor can be of especially high significance for microbial occurrence and activity and thus for litter decomposition just in dry inland dune ecosystems. It was concluded that in relatively monotonous pine forests overgrowing dry and poor in nutrients soils of inland dunes the slope aspect is an agent significantly differentiating both site and soil microbial conditions.
    Źródło:
    Sylwan; 2015, 159, 10; 839-847
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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