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    Wyświetlanie 1-4 z 4
    Tytuł:
    Sygnał klimatyczny w przyrostach rocznych świerka Schrenka (Picea schrenkiana sp.) rosnącego w górach Tien-Shan w Kirgistanie
    Climatic signal in the tree rings of Picea schrenkiana growing in the Tien-Shan Mountains in Kyrgyzstan
    Autorzy:
    Magnuszewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989857.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Kirgistan
    gory
    Tien Szan
    drzewa iglaste
    dendroklimatologia
    swierk Schrenka
    Picea schrenkiana
    przyrosty roczne
    przyrosty radialne
    czynniki klimatyczne
    picea schrenkiana
    dendroclimatology
    kyrgyzstan
    Opis:
    Paper studies the influence of climate conditions on radial growth of the endemic Schrenk spruce in the Tien−Shan Mountains in Kyrgyzstan. The research was conducted in four forest regions of Kyrgyzstan, where the analysed species occupies the largest area and along altitudinal gradient. Analysed climate factors included mean monthly temperature and precipitation. Additionally, similarity of growth patterns among study sites were compared with GL ratio and pointer years were determined to characterise situations that resulted in growth extremes. The results showed that high Tien−Shan Mountains create different local conditions in individual forest regions for growth of Schrenk spruce. The most important radial growth controlling factor is precipitation. When analyzing the climate−increment reaction it was found that it is affected by the geographical location, altitude and exposure of the analyzed site. Generally, at lower altitudes the main limiting factor was precipitation, while at higher elevations – temperature. This relationship, however, was not observed in all of the investigated regions. It can be affected by a specific climate of the high Tien−Shan causing different reactions of trees in various places. Because of this, the analyses of the Schrenk spruce radial increments should be performed separately within the existing forest regions.
    Źródło:
    Sylwan; 2015, 159, 04; 336-344
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dendrochronologiczna analiza przyrostów rocznych jodły pospolitej (Abies alba Mill.) na Pojezierzu Olsztyńskim (Nadleśnictwo Wichrowo)
    Dendrochronological analysis of silver fir [Abies alba Mill.] annual increments in the Olsztynskie Lakeland [Wichrowo Forest District]
    Autorzy:
    Koprowski, M.
    Gławenda, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016113.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    jodla pospolita
    dendrochronologia
    Pojezierze Olsztynskie
    Abies alba
    lesnictwo
    dendroklimatologia
    przyrosty roczne
    drzewa lesne
    dendrochronology
    dendroclimatology
    silver fir
    abies alba
    Opis:
    The research objective was to investigate the course of tree−ring width series of silver fir (Abies alba Mill.) growing outside its natural range. Sample material was collected in Wichrowo Forest District in the Olsztyńskie Lakeland region. Dendroclimatological analysis was performed for the period 1952−2000 on the basis of residual chronology and meteorological data from Olsztyn station. It turned out that the thermal conditions at the end of winter influence the tree ring widths the most.
    Źródło:
    Sylwan; 2007, 151, 11; 35-40
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ warunków klimatycznych na przyrosty roczne jarzębów szwedzkich Sorbus intermedia (Ehrh.) Pers. rosnących na stanowiskach miejskich
    Influence of climate conditions on tree-ring width of the Swedish whitebeam Sorbus intermedia (Ehrh.) Pers. growing at the urban sites
    Autorzy:
    Cedro, A.
    Nowakowska, M.
    Nowak, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/979224.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    miasta
    dendroklimatologia
    Sorbus intermedia
    przyrosty roczne
    warunki klimatyczne
    temperatura powietrza
    opady atmosferyczne
    drzewa liściaste
    jarząb szwedzki
    usłonecznienie
    dendroclimatology
    urban conditions
    Szczecin
    Opis:
    The aim of the research was to determine the impact of climatic conditions on the tree−ring width of Swedish whitebeam Sorbus intermedia (Ehrh.) Pers. growing in the urban conditions in Szczecin (NW Poland). The samples were taken from 26 trees growing along Rodziewiczówny, Ejsmonda and Santocka streets (left bank of the Odra river). On the basis of the tree−ring width measurements and cross−dating, two local chronologies (JS1 – Rodziewiczówny and Ejsmonda streets, and JS2 – Santocka street) were developed. Later on we indexed them (double detrending, least squares method and spline function) and subjected to the analysis of correlation and response functions. Growth−climate dependencies in both Swedish whitebeam communities are different. For the JS1 chronology the highest value of the multiple regression coefficient was obtained for air temperature, while for JS2 chronology for insolation and precipitation. For both sequences dependency on climate is similar in August and December of the previous year of vegetation and in January, February, April, June and July of the current year. The observed differences are the result of the impact of various factors related to human activity: traffic volume, soil pollution (mainly heavy metals and salt), damage to roots, trunks and crowns.
    Źródło:
    Sylwan; 2020, 164, 02; 102-109
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Redukcja przyrostów rocznych daglezji zielonej i sosny pospolitej w zależności od warunków termiczno-pluwialnych w Nadleśnictwie Kędzierzyn
    Reduction of Douglas fir and Scots pine radial increments depending on thermal and pluvial conditions in Kedzierzyn Forest District
    Autorzy:
    Ziemiańska, M.
    Kalbarczyk, R.
    Bilous, A.
    Leshchenko, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/979478.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    dendroklimatologia
    drzewa lesne
    daglezja zielona
    Pseudotsuga menziesii
    sosna zwyczajna
    Pinus sylvestris
    przyrosty roczne
    redukcja przyrostu
    warunki termiczno-opadowe
    Nadlesnictwo Kedzierzyn
    dendroclimatology
    pseudotsuga menziesii
    pinus sylvestris
    tree−ring reductions
    Opis:
    The main objective of the research was to evaluate the incremental response of Douglas fir and Scots pine subjected to strong environmental stress to variable thermal and precipitation conditions. We also attempted to determine periods of tree−ring width reduction caused by strong anthropopressure associated with the activities of nearby industrial plants, which are burdensome for the environment. The studied forest stands are located in the Kędzierzyn Forest District, in Kotlarnia forestry (50°27'59'N, 18°38'42'E) approximately 8 km away from the nitrogen production plants. We used standard methodology applied in the dendrochronological studies with the support of the TSAP−Win, Cofecha, Arstan and Quercus 06.01 softwares. We found that Douglas fir and Scots pine stands growing in the permanently damaged zone due to the adverse effects of industry responded to meteorological conditions in a manner typical of the species. In the study of the relationship between weather and growth, thermal and precipitation conditions were more important in the current year than in the year preceding the increment. A similar distribution of reductions and periods of partial regeneration in both species were also observed. In the same multi−annual period of 1961−1991 deeper reductions of annual increments were observed in Douglas fir (>70%) than in Scots pine (in the range of 50−70%). Conditions, in which trees grew in the Kędzierzyn Forest District, contributed to the decrease in annual increments of both Douglas fir and Scots pine, while the previous species turned out to be a more sensitive one, which had been indicated by other researchers ealier.
    Źródło:
    Sylwan; 2019, 163, 03; 198-208
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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