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    Tytuł:
    Wpływ terminu i sposobu wycinania brzozy brodawkowatej na jej regenerację i wzrost w uprawie dębowej
    Effect of time and cleaning method on silver birch sprouting ability and growth in oak young growth
    Autorzy:
    Andrzejczyk, T.
    Milewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/987203.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    uprawy debowe
    mlodniki debowe
    zabiegi pielegnacyjne
    ciecia pielegnacyjne
    wycinanie drzew
    terminy zabiegow
    gatunki domieszkowe
    brzoza brodawkowata
    Betula pendula
    zdolnosc regeneracyjna
    regeneracja roslin
    wzrost roslin
    przyrost wysokosci
    betula pendula
    sprouts
    stump height
    growth
    cleaning
    silviculture
    Opis:
    The objective of the study was to examine the sprouting ability and growth of silver birch after cleaning in a 11−year−old oak stand in Kolumna Forest District (central Poland). The purpose of the cleaning was to remove naturally regenerated birch. Six different treatments were applied as a cleaning methods. They differed in time of application and height of cutting or breaking the birch sprouts, i.e. spring cleaning at ground level in every second oak row (W1) or over the entire surface (W2), cutting or breaking at a height of 1 m in spring (W3a, W3b) and cutting or breaking at a height of 1 m in summer (W4a, W4b). We analyzed the formation of new sprouts and their height and dbh increment over a 4−year period after the treatment. On average, after spring cleaning 10−20% of birches produced new sprouts when birch was cut at the ground level. When cut at one meter, 85−90% of birches produced new sprouts. Cleaning in the summer decreased the sprouting ability by 20−25%. There were also significant differences in height growth of sprout between spring (better) and summer (worse) time of cleaning. There were no significant differences in sprouting ability and sprout growth between cutting and breaking when done at the same time of the year. Thus, the most effective way to restrict competition of birch in young oak stands is cutting at ground level.
    Źródło:
    Sylwan; 2017, 161, 04; 295-302
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu pielęgnowania uprawy na wzrost dębu
    Effect of cleaning treatments on a growth of sessile oak in young growth phase
    Autorzy:
    Milewski, M.
    Andrzejczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/987058.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    uprawy lesne
    zabiegi pielegnacyjne
    czyszczenia wczesne
    drzewa lesne
    dab bezszypulkowy
    Quercus petraea
    wzrost roslin
    przyrost drzew
    przyrost piersnicy
    przyrost wysokosci
    wspolczynnik smuklosci
    silviculture
    stand tending
    cleaning
    quercus petraea
    Opis:
    We examined growth of oaks after cleaning carried out in a 11−year−old stand in Kolumna Forest District (central Poland). The purpose of the treatment was to remove naturally regenerated species mainly birch. Four different cleaning variants were applied. They differed in time of application and height of unwanted trees i.e. spring cleaning at ground level in every second oak row (W1) or over the entire surface (W2), breaking at a height of 1 m in spring (W3) or in summer (W4) and control (K) where trees were not removed. We analyzed height and its increment, dbh and its increment as well as slenderness, i.e. h:d ratio, in 4−year−long period after treatment. The study reviled that the cleaning, regardless of the applied method, significantly improved oak growth, while lack of cleaning led to increased competition of birch. The pressure from the other species firstly reduced diameter increment and later the height increment (tab.). As a result, the h:d ratio of oaks increased. The 4−year height and dbh increment were similar in all the applied treatments but in the last year of study the dbh increment in variants W2 and W4 was significantly higher than in W1 and W3 due to greater competition of birch in these variants (figs. 1 and 2). Cleaning done on a limited area provides satisfactory growth and stability for young oaks, but it is probable that such a stand needs more frequent intervention than the one from W2 cleaning variant.
    Źródło:
    Sylwan; 2017, 161, 03; 189-195
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ ogłowienia i przerzedzenia na wzrost grabu (Carpinus betulus L.) w młodniku dębowym (Quercus petraea (Matt.) Liebl.)
    Influence of decapitating and thinning on growth of hornbeam (Carpinus betulus L.) in the oak (Quercus petraea (Matt.) Liebl.) thicket
    Autorzy:
    Andrzejczyk, T.
    Brzeziecki, B.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/979514.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewostany mieszane
    drzewostany grabowo-debowe
    mlodniki
    grab pospolity
    Carpinus betulus
    zabiegi pielegnacyjne
    przerzedzanie
    oglawianie
    wzrost roslin
    przyrost wysokosci
    przyrost piersnicy
    interspecific competition
    pre−commercial thinning
    decapitating
    mixed stand
    Opis:
    The aim of this study was to quantify 4−year growth and increment of 11− to 15−year−old, artificially regenerated hornbeam (Carpinus betulus L.) playing the role of the tending (nursery) species in the oak stand of the same age, after the silvicultural treatments aimed at reducing its competition against the oak. The study included three types of experimental treatments: decapitating of all hornbeam trees (OG), schematic reduction of hornbeam density (R50, removal of every second hornbeam in a row) and control (K, without treatment). The trial stand is located in Rogów (51.827023° N, 19.922315° E) and was established in 2004 on a moderately fertile site. The experiment was carried out in the spring 2013 (9 years after planting). Height and breast height diameter (dbh) of trees were measured every two years. During the study period, the height increment of decapitated trees was significantly larger than in R50 and K variants, while the dbh increment of trees in R50 variant was significantly larger than in K and OG variants. The height increment of hornbeam in R50 and OG variant and the dbh increment in R50 variant were positively correlated with height and diameter of trees before the treatment, while the dbh increment after decapitating was negatively correlated with tree dimensions before treatment. The decapitating treatment reduced the competitive ability of hornbeam more effectively than the schematic thinning removing 50% of hornbeam trees. After 4 years in the first case, oaks were on average 1 m higher than hornbeams, and in the second case, there was an opposite situation. In order to improve the effectiveness of the thinning treatment, a selective cutting should be performed (removal of the largest hornbeams), and in order to slow down the regeneration of hornbeams after decapitating, the treatment should be carried out during the top of the growing season.
    Źródło:
    Sylwan; 2019, 163, 03; 179-187
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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