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Wyszukujesz frazę "Turski, R." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wybrane charakterystyki koron drzew i ich związek z pierśnicą oraz wysokością w drzewostanach sosnowych różnych klas wieku
    Selected features of tree crowns and their relationship with the dbh and height in pine tree-stands of different age classes
    Autorzy:
    Turski, M.
    Jaszczak, R.
    Deus, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008333.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    dendrometria
    drzewostany sosnowe
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    klasy wieku
    klasy Krafta
    korony drzew
    piersnice drzew
    korelacja cech
    wysokosc drzew
    powierzchnia rzutu korony
    srednica korony
    dlugosc korony
    pine
    crown
    variation
    kraft’s classes
    dominant stand
    Opis:
    The paper discusses the selected crown characteristics of pine trees, their variability and dependence on breast height diameter and height. The analysis relates to the dominant forest stands of different age classes, and the Kraft classes forming them.
    Źródło:
    Sylwan; 2012, 156, 05; 369-378
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wydajność aparatu asymilacyjnego sosny zwyczajnej (Pinus sylvestris L.) różnych klas wieku
    Productivity of the assimilation apparatus of Scots pine (Pinus sylvestris L.) in various age classes
    Autorzy:
    Turski, M.
    Beker, C.
    Jaszczak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/989700.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    klasy wieku
    klasy Krafta
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    aparat asymilacyjny
    wydajnosc aparatu asymilacyjnego
    volume of leaved twigs
    productivity of assimilating apparatus
    age classes
    kraft's classes
    Opis:
    Productivity of the assimilating apparatus is commonly defined as an increment in volume, most typically of the stem or trunk, per unit of crown size. In this paper the productivity of the assimilating organ (CPtwn1) is calculated as a quotient of the average annual increment in stem volume from a 5−year period (iv1) and the volume of twigs with needles (twnv), determined by xylometry methods (fluid displacement method). The experimental material comprised measurements taken on 200 Scots pines (Pinus sylvestris L.) in 8 pure pine stands growing in western Poland (tab. 1). Using the calculated sizes of assimilating apparatus, their arithmetic means and coefficients of variation were calculated for each stand (tab. 2, 3). Additionally, mean crown productivity within each Kraft's class comprising the dominant trees (classes 1, 2 and 3) as well as in the dominated trees (classes 4 and 5) were determined. The strength of the relationship between CPtwn1 and diameter at breast height (d1.3), height (h) and volume of leaved twigs (twnv) was calculated (tab. 4). Moreover, a two−way analysis of variance was conducted to assess the statistical significance of the effect of age of the stand and biosocial class of tree position in the stand (within the dominant trees and the dominated trees) on productivity of the assimilating apparatus. Mean productivity of analysed Scots pine crowns takes the highest values in the youngest stand (0.60 m³), while the lowest – in the oldest stand (0.34 m³). In the youngest, 25−year old pine stand, mean productivity of the assimilating apparatus in trees forming the dominated trees is by 124% greater than that of trees forming the dominant trees. An opposite situation is found in the oldest, 93−year−old stand, where mean productivity of the dominant trees is over 1.5 greater than that recorded in the dominated trees. Statistically significant effect of the stand age on productivity of the assimilating apparatus was observed (tab. 5). However, affiliation of a tree to the dominant or dominated trees does not result in such an effect. On the other hand, there is an interaction between age of the stand and its affiliation to the Kraft's classes. This means that the affiliation of trees to the dominant trees or the dominated trees and its effect on mean productivity of the assimilating apparatus depend on the age of stand.
    Źródło:
    Sylwan; 2015, 159, 01; 36-44
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura drzewostanów lipowo-sosnowych powstałych w wyniku półnaturalnej przebudowy starodrzewów sosnowych
    Structure of lime-pine stands established as a result of seminatural reconstruction of old pine forests
    Autorzy:
    Jaszczak, R.
    Małys, L.
    Turski, M.
    Hnat, M.
    Majowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008329.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    starodrzew
    przebudowa drzewostanow
    przebudowa polnaturalna
    drzewostany lipowo-sosnowe
    struktura drzewostanu
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    lipa drobnolistna
    Tilia cordata
    wzrost roslin
    pozycja biosocjalna drzew
    struktura piersnic
    struktura wysokosci
    old pine forest
    seminatural reconstruction
    pine
    lime
    structure of breast height diameter
    height structure
    biosocial structure
    Opis:
    The paper presents results of the inventory carried out in 2008 in two−storeyed stands in which the upper storey consisted of pine trees and the lower one of lime trees. The structure of breast height diameter, height and the biosocial structure of the two species was discussed.
    Źródło:
    Sylwan; 2012, 156, 05; 360-368
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ typu siedliskowego lasu na wielkość i masę igieł opadających w ciągu roku w 30-letnich drzewostanach sosnowych
    Impact of the forest habitat type on the size and mass of the annual needles fall in 30-year-old Scots pine stands
    Autorzy:
    Turski, M.
    Beker, C.
    Jaszczak, R.
    Szymański, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/979218.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    sosna zwyczajna
    Pinus sylvestris
    czynniki siedliska
    typy siedliskowe lasu
    leśnictwo
    opad igieł
    needles fall
    mass and size
    forest habitat
    Opis:
    The article presents the size and weight of needles in 30−year−old Scots pine stands over one year with regard to the site conditions in which they grow (fresh mixed coniferous and fresh coniferous habitats). Two rectangular 1−hectare sample plots, which differed from one another only with the habitat type, were set up in Maszewo forestry in the Cybinka Forest District (western Poland). The plots were divided into 100 one−acre subplots, which were ascribed numbers from 1 to 100. In order to pick 10 plots a random number generator was used. The middle of the chosen plot became the central point of the 1−acre circular sample plots, where the measurements of all diameters at breast height and the height of every fifth tree were taken. Moreover, it was also the place where a square needle collection container (20 cm high, 1 m2 area) was located. The empty containers were placed in both experimental plots on 1st August 2017 and they were emptied on the first day of each month, throughout the entire year. The entire material was dried at the temperature of 65°C with an induced air flow. The needle mass was measured with the accuracy up to 0.001 g. Out of the samples collected each month, 300 needles were chosen at random in order to measure their length (after they were scanned with WinFOLIA program the size of each individual needle was established). Throughout the entire year, on fresh coniferous habitat the mass of the fallen needles was 2.8203 t/ha and it was by over 20% higher than it was determined for the fresh coniferous habitat. The lowest mass of the needle fall in each stand was in January, and the greatest in September on the fresh coniferous habitat, whereas in October on the fresh mixed coniferous habitat. In both of these cases, it was more than a half of the needle mass for the entire year. The average length of the fallen needles was in each month smaller on the fresh coniferous habitat and the differences between the analyzed stands were significant. The difference was the smallest (3.3%) in May, while the greatest (18.8%) in February. Moreover, significant differences in the length of the needles in the particular months in both types of stands were observed. The coefficient of variation for the needles length on the fresh mixed coniferous habitat ranged from 17.4 to 22.8%, whereas on the other habitat it varied between 14.2 and 21.6%. The mean of the coefficients of variation for the particular months was lower by 2.0% and for fresh coniferous habitat it reached 18.25%.
    Źródło:
    Sylwan; 2020, 164, 02; 118-126
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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