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    Tytuł:
    Wpływ przygotowania gleby na zagęszczenie, wzrost i jakość samosiewów sosny w warunkach podokapowych
    The effect of soil preparation on density, growth and quality of natural regeneration of pine under the canopy
    Autorzy:
    Andrzejczyk, T.
    Drozdowski, S.
    Szeligowski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026387.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    wzrost roslin
    samosiewy
    hodowla lasu
    przygotowanie gleby
    lesnictwo
    odnowienia naturalne
    odnowienia podokapowe
    scots pine
    natural regeneration
    soil preparation
    Opis:
    The studies were conducted in the years of 1997−2001. The effect of four methods of soil preparation (ploughing with double mouldboard plough LPZ−75, disc plough PTL−2, disc harrowing and ridge formation) on natural regeneration of pine under the canopy shelter was analysed. Significant differences in the density, height and vitality of seedlings in the variant II (ploughing with disc plough) and variant IV (ridge formation) were found in the second and third year of studies. In the following years the differences between the variants were insignificant due to the heavy damage of seedlings caused by the cockchafer larvae. Neither of the methods applied protected the seedlings against this damage.
    Źródło:
    Sylwan; 2003, 147, 03; 19-27
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozwój naturalnego odnowienia sosny zwyczajnej na powierzchni przygotowanej pługiem dwuodkładnicowym
    The performance of natural regeneration of Scots pine following soil preparation using double mouldboard plough
    Autorzy:
    Andrzejczyk, T.
    Drozdowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026749.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wzrost roslin
    przezywalnosc
    odnowienia lasu
    hodowla lasu
    sosna zwyczajna
    przygotowanie gleby
    lesnictwo
    odnowienia naturalne
    zageszczenie roslin
    Pinus sylvestris
    drzewa lesne
    scots pine
    pinus sylvestris l.
    natural regeneration
    soil preparation
    Opis:
    The objective of the study was to analyse the density, survival, height and quality of Scots pine (Pinus sylvestris L.) seedlings growing in the furrows and on the ridges. On poor sandy soils (fresh coniferous forest habitat) the performance of seedlings growing on ridges was superior while in a moderately fertile type of mixed coniferous forest habitat where the competition of forest floor vegetation was high, natural regeneration occurred almost entirely in the furrows.
    Źródło:
    Sylwan; 2003, 147, 05; 28-35
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu postępowania z pozostałościami zrębowymi i przygotowania gleby na zrębie na wzrost sosny zwyczajnej (Pinus sylvestris L.) w 6-letniej uprawie
    Effects of logging slash management methods and soil preparation methods on the clear-cut on growth of 6-year-old Scots pine (Pinus sylvestris L.) stand
    Autorzy:
    Żybura, H.
    Aleksandrowicz-Trzcińska, M.
    Drozdowski, S.
    Wołczyk, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/989272.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    zreby
    pozostalosci zrebowe
    postepowanie z pozostalosciami zrebowymi
    przygotowanie gleby
    odnowienia lasu
    odnowienia przez sadzenie
    sosna zwyczajna
    Pinus sylvestris
    uprawy sosnowe
    wzrost roslin
    przezywalnosc
    zageszczenie drzew
    logging slash
    planting
    scots pine
    soil preparation
    Opis:
    Different methods of logging slash management (LSM) and methods of soil preparation (MSP) can create different conditions for the growth of forest trees. This occurs through variation in soil aeration, tree nutrition or microbial conditions. These factors are modified by climate, soil fertility, treats from insects or fungal pathogens and renewed species. The aim of this study was to compare effects of three LSM methods: 1) crushing and mixing with the soil by Mery Crusher, 2) chopping and leaving on the soil surface, and 3) removal from the clear−cut, and three MSP: 1) double−mouldboard forest plough LPz−75, 2) active plough U−162, and 3) forest mill FAO−FAR FV 4088 on biometric parameters, density and survival of six−years old Scots pine seedlings. Field research was conducted in Narol Forest District (south−eastern Poland). The soil in the study area was classified as brown podzolic, formed on loose sands with typical mor humus.The experiment was established by planting 10 000 one−year−old pine seedlings per hectare, after clear cut and followed by a two−factor block design consisting of nine variants distinguished on the basis of LSM and MSP randomly assigned to each of the three blocks. Tree height and root collar diameter were measured three times, at the end of 1st, 3rd and 6th growing season. The results showed no statistically significant differences in the size of the analyzed parameters of planted seedlings. Seedlings in the variant with site preparation by crusher and forest mill were slightly higher and thicker. This indicates the better trophic conditions in that variant. LSM did not affect either seedlings density or their survival. A slightly higher survival rate and tree density occurred in variants with crusher regardless of soil preparation method. It follows that, all presented experimental variants give similar results. Therefore, selection of the most appropriate methods of site and soil preparation should primarily respect ecological and economic indicators, and such local factors as microclimate, mainly precipitation, site fertility and threats from pests and fungal diseases.
    Źródło:
    Sylwan; 2016, 160, 04; 267-276
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of different methods of site preparation on natural regeneration of Pinus sylvestris in Eastern Poland
    Autorzy:
    Aleksandrowicz-Trzcinska, M.
    Drozdowski, S.
    Brzeziecki, B.
    Rutkowska, P.
    Jablonska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/41158.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    natural regeneration
    Pinus sylvestris
    Scotch pine
    seedling density
    seedling growth
    seedling quality
    soil scarification
    Polska
    Opis:
    Mechanical site preparation (MSP) is commonly used to enable forest regeneration of clear-cuts. Less intense methods may be more suitable from an environmental point of view, but such a method can result in the lack of natural regeneration. We compare the influence of three MSP methods on natural regeneration of Scots pine. The methods differ in their degree of soil disturbance. The effects of MSP by forest plough (FP), active plough (AP), and forest cutter (FC) on density, quality, and biometric parameters of one-year old seedlings were determined. The highest density of seedlings was obtained in the FP treatment (188,000 seedlings ha–1). The seedling density was significantly lower in the AP method (121,000 seedlings ha–1), and in the FC variant (36,000 seedlings ha–1). The best quality seedlings were found in the FC variant, and the worst – in the FP treatment. Most biometric parameters of seedlings did not differ by MSP method, except for the root length and root:shoot ratio. By the end of growing season, in the FP treatment, 1-year old seedlings formed a top bud more than twice as often as the seedlings from the AP and FC treatments. The FP method led to the best Scots pine natural regeneration. The results obtained in the FC variant were not as good as in the FP method, though they were still acceptable from the silvicultural point of view. The FC method was the least intensive method of site preparation, yet it is considered the most appropriate from the environmental (soil protection) point of view.
    Źródło:
    Dendrobiology; 2014, 71
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ mechanicznego przygotowania gleby na zrębie na jej cechy
    Effect of mechanical site preparation on features of the soil in a clear-cut area
    Autorzy:
    Aleksandrowicz-Trzcińska, M.
    Drozdowski, S.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/986611.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    zreby
    przygotowanie gleby
    zabiegi mechaniczne
    maszyny lesne
    plug LPZ
    plug aktywny jednotalerzowy
    frez lesny
    gleby lesne
    wlasciwosci fizyczne
    wlasciwosci chemiczne
    forest plough
    active plough
    forest mill
    soil scarification
    clear−cut
    Opis:
    In most cases, mechanical site preparation (MSP) is a precondition if high−quality (natural or artificial) regeneration of forests is to be achieved. However, the measures involved here may differ in terms of the level of intervention of the soil environment, at both the surface and deeper down. The choice of MSP methods should be based on climatic conditions, site type and the species whose renewal is sought, while the effect should improve conditions for the emergence and growth of the young generation of trees, with the influence on the soil environment being limited as far as possible. The research sought to compare physical and chemical features of the soils of the microhabitats created in clear−cut areas as a result of MSP using either an LPz double mould−board forest plough (furrow and ridge), an active plough (furrow and ridge) and a forest mill (belt and beyond the belt) as compared with unscarified soil. Investigated physical features included grain size (content of sand, silt and clay), bulk density and actual moisture, while the chemical ones: pHH2O and pHKCl, exchangeable acidity, total content of N and C and the C/N ratio, P2O5 content and base cations Mg2+, Ca2+, K+ and Na+. The most invasive MSP method for the soil environment is the active plough, which leaves the ridge exposed to processes of the decomposition of organic matter (and the highest content of N, C, Mg2+, Ca2+ and K+). Equally, this method may pose the greatest threat of mineral components of the soil being leached, with impoverishment of the habitat ensuing. The forest mill in turn offers the least invasive MSP. Most of the physical and chemical features of soil (other than exchangeable acidity and pHH2O and pHKCl) both in the belt areas and beyond them differed little from the those characterising non−scarified soil. Also the analysed features determined for the furrows ploughed by the active or LPz ploughs or the belt prepared using the forest mill did not differ significantly.
    Źródło:
    Sylwan; 2018, 162, 08; 648-657
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby na cechy odnowienia naturalnego sosny zwyczajnej (Pinus sylvestris L.) w Nadleśnictwie Spychowo
    Effect of mechanical site preparation methods on characteristics of the natural regeneration of Scots pine (Pinus sylvestris L.) in Spychowo Forest District
    Autorzy:
    Aleksandrowicz-Trzcińska, M.
    Drozdowski, S.
    Ligocki, M.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/987039.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    Nadlesnictwo Spychowo
    odnowienia naturalne
    przygotowanie gleby
    sosna zwyczajna
    Pinus sylvestris
    siewki
    zageszczenie roslin
    przezywalnosc
    wzrost roslin
    soil scarification
    self−sowing
    seedling density
    seedling growth
    clear−cut
    Opis:
    Mechanical site preparation is recommended to create optimum conditions for seed germination and seedling growth in a clear−cut area. Lack of soil scarification or less−intense methods may be more suitable from an environmental point of view, but can result in a failure to obtain natural regeneration. This study compared the effects of three mechanical site preparation methods (SPM) characterized by different levels of soil scarification (i.e. double mould−board forest plough (LPz), active plough (PA) or forest mill (FL)), as well as a control variant without mechanical site preparation, on height, density, spatial distribution and survival among naturally regenerating Scots pines (Pinus sylvestris L.) in the first 2 years of growth in a clear−cut area of NE Poland. The experiment was based around a four−block randomized block design involving the four variants. Seedling height was measured at the end of the first and second growing seasons, with measurements performed on 8 meter−wide transects extending across the entire width of the cleat−cut. We found no effect of SPM on seedling height, though the density of seedlings regenerating naturally was found to be dependent. After two years, the highest density was achieved in the PA variant (8.1 seedlings/m2) and the FL variant (7.0 seedlings/m2). A significantly lower density characterized the LPz variant (5.1 seedlings/m2) and the lowest of all the variant without soil scarification (3.2 seedlings/m2). The most homogeneous natural regeneration was achieved following the use of PA (2.6% of 1 m2 plots without seedlings after two growing seasons), while the least homogeneous was the variant without soil scarification (22.4% of 1 m2 plots). Survival of pines after the second growing seasons was quite high (over 80%), and did not differ significantly depending on the SPM. Our research therefore confirmed that, in the absence of mechanical site preparation, natural regeneration of sufficient density and homogeneity cannot be obtained. The best natural regeneration was obtained on sites prepared with PA, and FL scarification being only slightly less favorable. The low density and uneven distribution of seedlings on the soil prepared with LPz was a surprising result. The probable reason for this lay in the high precipitation in the first growing season. On one hand, this provided very good moisture conditions for seed germination and seedling growth on a substrate with high porosity in the PA and FL variants, but on the other the high bulk density of mineral soil in the LPz variant led to oxygen deficit.
    Źródło:
    Sylwan; 2017, 161, 03; 196-207
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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