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    Wyświetlanie 1-5 z 5
    Tytuł:
    Właściwości gleby pod okapem czterech gatunków drzew leśnych po 30 latach od ich posadzenia na dwóch różnych siedliskach
    Soil properties under the canopy of four forest tree species 30 years after planting on two different forest sites
    Autorzy:
    Mroziński, P.
    Modrzyński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018330.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    siedliska lesne
    Larix decidua
    Quercus robur
    wlasciwosci fizyczne
    daglezja zielona
    lesnictwo
    Picea abies
    dab szypulkowy
    bor mieszany swiezy
    modrzew europejski
    wlasciwosci chemiczne
    gleby lesne
    Pseudotsuga menziesii
    las mieszany swiezy
    drzewa lesne
    swierk pospolity
    forest trees
    humus type
    soil properties
    site fertility
    central europe
    Opis:
    The main objective of this study was to demonstrate a relationship between the direction and effectiveness of impact of particular tree species on soil properties and the initial site fertility. The studies were conducted on two neighbouring experimental plots with different forest site types (fresh mixed coniferous forest – BMśw and fresh mixed deciduous forest – LMśw). The analysed species Norway spruce (Picea abies L. Karst.), European larch (Larix deciduas Mill.), Douglas fir (Pseudotsuga menziesii Franco) and penduculate oak (Quercus robur L.) were planted in three replications on 400 m2 plots. It was stated that: 1) the humification processes ongoing under the canopy of the analysed tree species are, to a large degree, determined by the type of forest site; 2) under the same tree species the content of calcium and nitrogen in the nitrate form was found to by markedly lower in the BMśw forest site; 3) in the BMśw forest site, the pH and electrolytic conductivity of the soil under the majority of the analysed tree species were lower; 4) the degrading impact of coniferous species on soil was noticeably stronger on the poorer BMśw forest site.
    Źródło:
    Sylwan; 2006, 150, 08; 26-37
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zasobów martwego drewna w lasach gospodarczych z względnieniem typów siedliskowych lasu oraz bonitacji gatunku panującego
    Effect of site conditions and site index for the dominant tree species on the amount of deadwood in managed forests
    Autorzy:
    Bujoczek, L.
    Zięba, S.
    Banaś, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/989223.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy gospodarcze
    drewno martwe
    miazszosc drewna
    warunki siedliskowe
    typy siedliskowe lasu
    bonitacja siedliska
    coarse woody debris
    snag
    volume
    site productivity
    fertility
    moisture
    Opis:
    The work studied the effects of site conditions on the amount of deadwood (DW) in managed forests in south−western Poland. Measurements included standing dead trees, snags with a diameter at breast height of at least 7 cm, and lying deadwood (logs, branches, uprooted trees, etc.) with a diameter at the thicker end of at least 10 cm. The study excluded snags and deadwood pieces with a diameter of less than 7 cm as well as stumps. Site conditions are presented according to the Polish site classification system taking into account both site fertility and water abundance. With respect of the fertility gradient, sites are classified as dystrophic, oligotrophic, mesotrophic, and eutrophic. In terms of water abundance, there are two types of sites: mesic (low or very low contribution of groundwater, rainwater, and floodwater, with an approximate springtime water table depth of more than 1.8 m) and moist (moderate or considerable contribution of groundwater, rainwater, and floodwater, with an approximate springtime water table depth of 0.5−1.8 m). We analyzed data from 2522 sampling plots with area ranging from 50 to 500 m² and depending on forest stand age. The plots were established in forest stands older than 21 years old. The predominant tree species in the study area were Pinus sylvestris, Quercus robur, Quercus petraea, Betula pendula, Fagus sylvatica, Alnus glutinosa, Fraxinus excelsior and Picea abies. In a separate analysis of data from 233 sampling plots, we studied the relationship between DW volume and the site index evaluated using a five−level classification (level I denotes sites with the highest productive capacity). Forest stands aged >80 years with the dominance of Pinus sylvestris were studied. The study showed a significant influence of site conditions on the DW volume in managed forests. Forest stands exhibiting better site conditions not only provided more timber, but also contributed with a greater amount of deadwood to the ecosystem. Forest stands with a site index of I contained as much as 4.9 m³ of DW/ha, while stands with a site index of III only 2.4 m³ of DW/ha. In terms of the 8 studied site types, it was also found that the average volume of DW increased with site fertility. The lowest volume of DW occurred on very nutrient−poor and mesic sites (0.6 m³/ha). In contrast, nutrient−rich and moist sites contained 15 times as much DW (9.5 m³/ha). Of paramount importance was water abundance. The volume of DW on moist sites was on average by 2.2−4.5 m³/ha higher than on mesicsites with the same fertility.
    Źródło:
    Sylwan; 2016, 160, 04; 320-327
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie indeksu trofizmu gleb leśnych do oceny jakościowej wybranych gleb leśnych Gór Bialskich i Złotych
    Application of the forest soil trophism index for determination of the quality of selected forest soils in the Bialskie and Zlote Mountains
    Autorzy:
    Jamroz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009685.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Indeks Trofizmu Gleb Lesnych
    gleby lesne
    Gory Zlote
    Gory Bialskie
    lesnictwo
    zyznosc gleb
    forest site
    forest soil trophism index
    fertility index
    mountain soils
    Opis:
    Fertility of forest soils in the Bialskie and Złote Mountains is presented in the paper. Forest soil trophism indexes were calculated for mountain coniferous forest (BG), mountain mixed coniferous forest (BMG) and mountain mixed broadleaved forest (LMG). Modification because of the mountain conditions was applied to standard calculation of the index. Analyzed soils from BG sites represented oligotrophic group of soils, soils from BMG were classified as lower mesotrophic and from LMG as medium mesotrophic soils.
    Źródło:
    Sylwan; 2009, 153, 10; 684-688
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gleby siedlisk leśnych Żywiecczyzny Cz. I. Siedliska niskiego regla dolnego
    Autorzy:
    Lasota, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023518.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    siedliska lesne
    Beskid Slaski
    Zywiecczyzna
    lasy gorskie
    Beskid Maly
    Beskid Zywiecki
    lesnictwo
    niski regiel dolny
    forest site type
    mountain forest site
    low elevations of lower montane zone
    west beskidy
    forest soil fertility
    Opis:
    The studies on soil properties affecting forest sites at low elevations (up to 900 m a.s.l.) of the lower montane zone were carried out in the Żywiec region. The paper describes the relationships between forest sites types and underlying parental rock, soil type and subtype, as well as basic physical and chemical properties of soils used for the assessment of their natural fertility and productivity.
    Źródło:
    Sylwan; 2004, 148, 02; 3-10
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gleby siedlisk leśnych Żywiecczyzny Cz. II. Siedliska wysokich położeń regla dolnego i regla górnego
    Solis of forest site types in Żywiec region Part II. Forest sites at high elevations of the lower montane zone
    Autorzy:
    Lasota, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023762.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    siedliska lesne
    Beskid Slaski
    gleby lesne
    Beskid Maly
    Beskid Zywiecki
    regiel gorny
    lesnictwo
    wysoki regiel dolny
    forest site type
    mountain forest site
    high elevations of lower montane zone
    west beskidy
    forest soil
    fertility
    Opis:
    The studies on soil properties affecting forest sites at high elevations of the lower (900−1100 m a.s.l.) and upper montane zones were carried out in the Żywiec region. The paper describes the relationships between forest site types and underlying parental rock, soil type and subtype, as well as basic physical and chemical properties of soils used in the assessment of their natural fertility and productivity.
    Źródło:
    Sylwan; 2004, 148, 03; 14-20
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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