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Wyszukujesz frazę "Kulak, D." wg kryterium: Autor

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    Tytuł:
    Porównanie metod szacowania pozyskaniowych szkód glebowych na przykładzie rębnego drzewostanu bukowego
    A comparison of methods to estimate harvest-induced damage to the soil using the example of a beech timber stand
    Autorzy:
    Kulak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1312645.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewostany bukowe
    pozyskiwanie drewna
    ciecia rebne
    zrywka drewna
    szkody w lesie
    gleby lesne
    warstwa wierzchnia
    uszkodzenia gleby
    szacowanie szkod
    metody szacowania szkod
    logging damage
    indicators of soil damage
    beech timber stand
    agricultural tractor
    Opis:
    The study determines the extent of soil disturbances occurring during mechanised harvesting operations in a beech timber stand and investigates whether applying different research methods can be used to classify, in a comparable way, forest areas with different levels of soil damage. In the analysed stand, felling and on-site processing were conducted with chainsaws, while extracting – using an farm tractor. After the completion of logging operations, visible soil disturbances on each sample plot were measured, including their area, volume and depth, and the value of five most common indicators of soil damage was calculated. The share of disturbed surface area, the volume of soil disturbances and different soil damage indicators allowed sample plots to be arranged in the same way according to increasing levels of soil damage occurring during harvesting. A different order was observed only in relation to the depth of the ruts formed. The similarity of the applied measures and classifications of soil disturbances indicates that all of the methods can be applied to make simple comparisons of the degree of soil damage. Because field trials are easy to perform, soil damage indicators based on a visual assessment of soil condition, without the need to take measurements, are worth recommending at first. A fuller picture of the level and nature of detected soil damage, however, can be obtained by taking into account the depth of the disturbance.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 3; 245-251
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozmiar i charakter naruszeń wierzchniej warstwy gleby powstałych podczas pozyskiwania drewna w trzebieżowym drzewostanie jodłowym
    Size and character of the damage to the top soil layer caused during harvest in a thinned fir stand
    Autorzy:
    Kulak, D.
    Seńczyszyn, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008885.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany jodlowe
    trzebieze
    pozyskiwanie drewna
    zrywka drewna
    oddzialywanie na glebe
    gleby lesne
    warstwa wierzchnia
    uszkodzenia gleby
    damage from timber extraction
    early thinning
    fir stand
    farm tractor
    Opis:
    The paper depicted size and character of the disturbances in top soil layer in a fir stand after early thinning. The treatment was performed in summer using engine−driven chain saws and a farm tractor with a skidding trailer. Size of topsoil damage was confirmed to be very low, with the value of Ug index below 1.5%. In the experiment, the probability analysis of topsoil disturbances showed their decline with the growing distance from the skid road.
    Źródło:
    Sylwan; 2011, 155, 08; 509-517
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wybranych środków zrywkowych na uszkodzenia gleby w rębnych drzewostanach bukowo - jodłowych
    The impact of selected skidding techniques on soil damage in beech-fir timber stands
    Autorzy:
    Kulak, D.
    Barszcz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013081.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gleby lesne
    warstwa wierzchnia
    oddzialywanie na glebe
    zrywka drewna
    uszkodzenia gleby
    drzewostany bukowo-jodlowe
    lesnictwo
    skidery
    zrywka ciagnikiem
    zrywka konna
    skidding
    soil damage
    horse
    skidder
    farm tractor
    Opis:
    The extent and structure of topsoil damage caused by different skidding techniques, like horse, skidder and farm tractor operating together, were determined. The research was carried out during the final cuts in the beech−fir stands situated in the foothill zone. The smallest extent of damage was caused by horse skidding (15% of stand area), while the largest – by skidder (18%). At the same time, the highest volume of disturbed soil (40 m3/ha) characterised horse skidding while the lowest (30 m3/ha) was observed when all the three skidding techniques were used. Analysis of the dimensions (area and volume) of single soil disturbances showed the smallest damage caused by skidder. The larger area and volume of disturbed soil was characteristic for the joint use of the three different skidding techniques. The research showed that soil damage caused by horse skidding was twice less likely than if skidder was used and over 2.5 times more probable if skidding was performed by several techniques.
    Źródło:
    Sylwan; 2008, 152, 12; 20-28
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ zrywki konnej na uszkodzenia wierzchnich warstw gleby w trzebieżowych drzewostanach sosnowych
    The influence of horse skidding on upper soil layer disturbances in thinned pine stands
    Autorzy:
    Kulak, D.
    Stanczykiewicz, A.
    Szewczyk, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/880553.pdf
    Data publikacji:
    2014
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
    Tematy:
    lesnictwo
    drzewostany sosnowe
    pozyskiwanie drewna
    zrywka drewna
    zrywka konna
    oddzialywanie na glebe
    gleby lesne
    warstwa wierzchnia
    uszkodzenia gleby
    Źródło:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 2B[39]
    1509-1414
    Pojawia się w:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Czynniki wpływające na zmiany zwięzłości gleb leśnych podczas pozyskiwania surowca drzewnego
    Factors affecting the changes in penetration resistance of forest soils during timber harvesting
    Autorzy:
    Kulak, D.
    Stańczykiewicz, A.
    Szewczyk, G.
    Lubera, A.
    Strojny, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/989881.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    trzebiez pozna
    pozyskiwanie drewna
    metody pozyskiwania drewna
    oddzialywanie na glebe
    gleby lesne
    ugniatanie gleby
    zwiezlosc gleb
    timber harvesting
    mechanized
    motor−manual
    soil penetration resistance
    Opis:
    The objective of the studies was to determine the penetration resistance (cohesion) of soil compacted at timber harvesting in Scots pine stands subjected to late thinning. The scope of the investigations was limited to two technologies – the mechanized one, using a harvester−forwarder machine set, as well as the motor−manual one, employing petrol chainsaws and a farm tractor for forwarding and dragging of felled trees. The analyses were performed in central Poland, in the Staszów Forest District, for two habitats – fresh mixed coniferous forest and fresh mixed deciduous forest. The measurements of soil cohesion were taken with the use of Eijkelkamp 06.15.SA Penetrologger penetrometer along the five measurement lines situated perpendicularly to the main skidding track. The soil penetration resistance was measured in eight spots for every measurement line: in the middle of the left and right wheel−rut, between the wheel−ruts, on the left and right roadside within a distance of 0.5 and 1 m from the wheel−rut edge, and 10 m from the right wheel−rut; the latter location was treated as the reference. The mechanized timber harvesting caused stronger compaction of soil, particularly in wheel−ruts, where the recorded values of soil cohesion exceeded 3 MPa (fig. 1). For the technology with farm tractor for skidding, the greatest soil compaction was also encountered in wheel−ruts, reaching up to 2.5 MPa. With regard to both logging technologies, the analysis of variability in penetration resistance of the top 10−cm soil horizon revealed a statistically significant increase in soil compaction in wheel−ruts when compared with other measuring points along and nearby the skid track (fig. 2). The employed technology of timber harvesting and the degree of soil cohesion in wheel−ruts were proved to be correlated. In respect of the mechanized variant, the mean value of soil penetration resistance in the top 10−cm layer counted up to 2 MPa and was significantly greater than the one in motor−manual technology, where it did not exceed 1.3 MPa. No significant differences in soil compaction in reference to the investigated forest habitats were revealed, though it was stronger in fresh mixed coniferous forest, with regard to both technological variants. The motor−manual technology caused the increase in soil penetration resistance by 2% on the roadside, nearly 20% in the middle of the skid track and over 70% in wheel−ruts. While the mechanized logging operations resulted in 30% increase in soil cohesion on the roadside, 55% between the wheel−ruts and over 250% inside the wheel−ruts (fig. 3).
    Źródło:
    Sylwan; 2015, 159, 04; 318-325
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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