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    Wyświetlanie 1-3 z 3
    Tytuł:
    Tree ring growth as a response of silver fir (Abies alba Mill.) from Rudnik Forest District to climatic factors
    Autorzy:
    Tomczyk-Kida, Monika
    Durło, Grzegorz B.
    Wilczyński, Sławomir
    Powiązania:
    https://bibliotekanauki.pl/articles/2044111.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Abies alba
    climate
    dendrochronology
    dendroclimatology
    dendrochronological analysis
    Opis:
    The aim of the study was to evaluate the sensitivity of silver fir (Abies alba Mill.) from the Rudnik Forest District on the selected meteorological elements and to develop a chronology of local tree-ring width and the annual sensitivity. Based on the analysis, the site chronology of silver fir was developed and the strength of the relationship between the climate components and the width of annual rings was calculated. In addition, we examined the degree of homogeneity of short-term incremental response, rated the representativeness of the chronology and climate signal strength. Having analysed the indicator years, namely 1932–2013, we concluded that the growth of firs was positively influenced mainly by air temperature in winter, and to a lesser extent, by precipitation in spring and summer. The main factors that limit its growth are cold winters, cool and low rainfall summers, and rainy springs.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 2; 135-145
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The results of the introduction of twisted pine (Pinus contorta) in Bolshoy Solovetsky Island
    Autorzy:
    Sobolev, A.
    Feklistov, P.
    Bolotov, I.
    Barzut, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2106672.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    forestry
    Bolshoy Solovetsky Island
    twisted pine
    Pinus contorta
    height
    diameter
    tree ring width
    late wood
    assimilation apparatus
    pathology
    Opis:
    In the central part of the Bolshoy Solovetsky Island, in the same type of growing conditions, two plots were created in 1988: the first consisted of twisted pine (Pinus contorta Loud. var. latifolia S. Wats) crops and the second one was of Scots pine (Pinus sylvestris L.). The aim of the study was to establish the morphological parameters of the twisted pine and its growth in the conditions of the Bolshoy Solovetsky Island in comparison with the native species P. sylvestris L. Also, we aimed to identify the features of P. contorta var. latifolia and determine the possibility and necessity of further introduction of the species. The preservation of the twisted pine and scots pine cultures was determined. Accounting trees were selected (62 and 31 trees, respectively), in which morphometric indicators were measured. Wood samples (cores) were taken from them with an age drill to measure radial growth. The radial increment was measured using the MBS-9 microscope and the Lintab device. To measure the increase in height, six medium-sized model trees were cut down. According to the taxation indicators, the two types differed slightly and the differences were most often unreliable. The average height of the twisted pine trees was significantly higher compared to that of Scots pine. The thickness of the bark varied; on average, at the age of 18, it was 1.35 ± 0.038 mm for twisted pine and 1.86 ± 0.095 for Scots pine, that is, the native pine bark was 38% thicker. Typical for twisted pine were a significant number of pathologies noted in 22% of the studied trees. Twisted pine was distinguished by a stronger development of the assimilation apparatus: the number of branches of the first order, the number of branches in the whorl, the life span of needles. An increase in radius (the width of the annual ring) was observed at 14–15 years, and then with age, the value decreased in twisted pine and remained at a consistently high level in Scots pine. The width of the late zone of the annual ring was 12% in Scots pine and 14% in twisted pine; but at a young age, the late wood in twisted pine was very small. The increase in height of the twisted pine was on average less than that of Scots pine. The dependence of the trunk volume on the diameter was almost identical in both species.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2022, 64, 1; 1-6
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ warunków klimatycznych na szerokość przyrostu rocznego jarzębu brekinii (Sorbus torminalis L.) w Wielkopolsce
    The influence of climatic conditions on the tree-ring width of wild service trees (Sorbus torminalis L.) in Wielkopolska
    Autorzy:
    Cedro, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1294138.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    dendroklimatologia
    jarzab brekinia
    Sorbus torminalis
    sloje przyrostu rocznego
    szerokosc
    warunki klimatyczne
    Wielkopolska
    dendroclimatology
    Sorbus torminalis L.
    Polska
    Opis:
    The wild service tree (Sorbus torminalis L.) is a very rare tree species in Poland, which also represents the north-eastern border of its natural range. The majority of this species’ stands is found in Wielkopolska. This study was aimed at examining the relationships between growth and climate for trees of the species Sorbus torminalis L. growing in the Wielkopolski National Park and the forest district Pniewy (Wielkopolska). Samples for the analysis were taken from 63 trees. However, taking into account the missing growth rings and difficult identification of the tree-ring borders in sapwood, only ca. 30% of the samples could be synchronized and dated accurately. Applying classic methods of dendrochronological dating, a 94-year STW chronology was constructed, spanning the years 1920–2013. The chronology, in turn, was used as a basis for dendroclimatological analyses including correlation, response function and pointer years. Climatic data used in the analyses came from the meteorological station in Poznań; providing air temperature and precipitation for a period of 66 years (1948–2013) and 48 years of insolation data (1966–2013). Insolation had the highest negative and precipitation the highest positive impact on the annual growth in May and June. Positive pointer years could be linked to humid months with low insolation during the growth season, while negative pointer years are characterized by deficient precipitation, a large number of sunny hours and high air temperatures in the summer months.
    Źródło:
    Leśne Prace Badawcze; 2016, 77, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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