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    Wyświetlanie 1-3 z 3
    Tytuł:
    Gleby i siedliska drzewostanów nasiennych dębu szypułkowego (Quercus robur) i dębu bezszypułkowego (Q. petraea) w Polsce
    Soils and forest site types of the seed stands of common (Quercus robur) and sessile (Q. petraea) oaks in Poland
    Autorzy:
    Andrzejczyk, T.
    Sewerniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989647.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    dab bezszypulkowy
    Quercus petraea
    dab szypulkowy
    Quercus robur
    drzewostany nasienne
    siedliska lesne
    gleby lesne
    bonitacja drzewostanow
    quercus
    seed stands
    forest site
    soil
    silviculture
    Opis:
    The aim of the study was to investigate the structure of forest site types and of soil types of oak seed stands in Poland. The study was comparatively conducted with reference to sessile (Quercus petraea) and common (Q. robur) oaks. As in Poland the seed stands are established only in stands characterized by favourable both growth parameters and timber quality, it was suspected that the results of the study would enable to indicate optimal sites and soil units for oak breeding in Poland. The study was conducted on the basis of data obtained from the SEMEN database (www.bnl.gov.pl) which were broadened by descriptions of the investigated seed stands found in the Forest Data Bank (www.bdl.lasy.gov.pl). For both oak species, the research was conducted with reference to the two types of seed stands: permanent (WDN) and temporary (GDN). In total, 531 stands of Quercus petraea and 2043 of Q. robur located across whole Poland were investigated in the study. It was found that optimal soils as well as forest site types overlap for both investigated oak species only for fresh broadleaved forest (Lśw). For other forest type sites distinct differences for the oak species were found. The optimum for common oak were expanded towards the wet sites (moist broadleaved forest – Lw, and riparian forest – Lł), while for sessile oak towards semi−fertile mixed broadleaved forest (LMśw). It is interesting that seed stands of both oak species overgrow not only fine−textured soils, but significant share of them (ca. 50% area of Q. petraea and 15% of Q. robur seed stands) occurs on sandy soils (Brunic Arenosols mainly). It proves that Brunic Arenosols constitute forest sites enabling production of broadleaved forests characterized by favourable growth parameters and high timber quality. However, it is possible unless the soil have been podzolized by conifers due to podzolized Brunic Arenosols were rarely represented in the oak seed stands and, if so, the stands were characterized by relatively low site index. It was also stated that on podzolized Brunic Arenosols of fresh mixed coniferous forest (BMśw) admixture of oak should enable reducing negatively impact of conifers on a soil.
    Źródło:
    Sylwan; 2016, 160, 08; 674-683
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost i przeżywalność 8-letniego potomstwa WDN jodły pospolitej (Abies alba Mill.) w I regionie testowania
    Growth and survival among the 8-year-old progeny of permanent seed stands of silver fir (Abies alba Mill.) in Testing Region I
    Autorzy:
    Buraczyk, W.
    Szeligowski, H.
    Studnicki, M.
    Konecka, A.
    Będkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/979457.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    jodla pospolita
    Abies alba
    proweniencje
    drzewostany nasienne
    potomstwo drzewostanow nasiennych
    cechy adaptacyjne
    wzrost roslin
    przezywalnosc roslin
    provenance
    progeny testing
    permanent seed stands
    adaptation
    survival
    stability of origins
    Opis:
    The programme of testing the progeny of permanent seed stands, parent trees, seed orchards and seedling seed orchards that has been run in Poland enables to determine the genetic value and silvicultural quality of the progeny of components of primary forest material. A better knowledge of population variability and adaptability to particular environmental conditions also allows for the updating and verification of principles regarding the use of the seed base in testing regions, as well as the determination of possibility for forest reproductive material to be transferred. The article presents the research on assessment of survival and growth among progeny from 26 permanent seed stands of silver fir that originates from Lublin, Radom and Łódź Regional Directorates of the State Forests, at four testing grounds located in the Kielce, Suchedniów, Tomaszów and Zwierzyniec forest districts. Each research plot was founded with 4 replicates, each with 3−year−old saplings. After 5 years of growth, mean rates of survival ranged from 70.4% at the Kielce site to92.7% in Tomaszów. The lowest survival rate (30.5%) was noted for local origin (Starachowice), while the highest (93.8%) characterised the local standard from Zwierzyniec. Mean height varied from 54.1 cm in the case of the Suchedniów to 80.0 cm in the case of Tomaszów, albeit with the shortest firs originating from the Starachowice local standard and the tallest from the Tomaszów local standard. Analysis of variance components revealed that the environmental conditions (described by study area) played major role in shaping the variability. This effect was responsible for around 75% of the variance in height and 60% of that relating to survival. In contrast, origin (genetic factor) was most likely responsible for 7% of the noted variance in height or 4% of that relating to survival.
    Źródło:
    Sylwan; 2019, 163, 11; 936-947
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie analizy skupień do rozróżnienia tendencji zmian roślinności na przykładzie dynamiki zbiorowisk po pożarze dolnym w zbiorowisku Peucedano-Pinetum w Kampinoskim Parku Narodowym
    Application of cluster analysis to distinguish the tendencies of vegetation changes on the example of the dynamics of communities affected by surface fire in the Peucedano-Pinetum community in the Kampinoski National Park
    Autorzy:
    Zaniewski, P.T.
    Zaniewska, E.
    Matuszkiewicz, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/979384.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Kampinoski Park Narodowy
    zbiorowisko Peucedano-Pinetum
    pozary przyziemne
    dynamika zbiorowisk
    regeneracja fitocenoz
    metoda Warda
    leśnictwo
    drzewostany popożarowe
    sukcesja wtórna
    analiza skupień
    provenance
    progeny testing
    permanent seed stands
    adaptation
    survival
    stability of origins
    Opis:
    The programme of testing the progeny of permanent seed stands, parent trees, seed orchards and seedling seed orchards that has been run in Poland enables to determine the genetic value and silvicultural quality of the progeny of components of primary forest material. A better knowledge of population variability and adaptability to particular environmental conditions also allows for the updating and verification of principles regarding the use of the seed base in testing regions, as well as the determination of possibility for forest reproductive material to be transferred. The article presents the research on assessment of survival and growth among progeny from 26 permanent seed stands of silver fir that originates from Lublin, Radom and Łódź Regional Directorates of the State Forests, at four testing grounds located in the Kielce, Suchedniów, Tomaszów and Zwierzyniec forest districts. Each research plot was founded with 4 replicates, each with 3−year−old saplings. After 5 years of growth, mean rates of survival ranged from 70.4% at the Kielce site to 92.7% in Tomaszów. The lowest survival rate (30.5%) was noted for local origin (Starachowice), while the highest (93.8%) characterised the local standard from Zwierzyniec. Mean height varied from 54.1 cm in the case of the Suchedniów to 80.0 cm in the case of Tomaszów, albeit with the shortest firs originating from the Starachowice local standard and the tallest from the Tomaszów local standard. Analysis of variance components revealed that the environmental conditions (described by study area) played major role in shaping the variability. This effect was responsible for around 75% of the variance in height and 60% of that relating to survival. In contrast, origin (genetic factor) was most likely responsible for 7% of the noted variance in height or 4% of that relating to survival.
    Źródło:
    Sylwan; 2019, 163, 11; 936-947
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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