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    Tytuł:
    Dendrochronologiczna analiza przyrostów rocznych buka zwyczajnego (Fagus sylvatica L.) w Nadleśnictwie Iława
    Dendrochronological analysis of European beech [Fagus sylvatica L.] tree rings in the Ilawa Forest District
    Autorzy:
    Koprowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018497.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Nadlesnictwo Ilawa
    dendrochronologia
    buk zwyczajny
    sloje przyrostu rocznego
    lesnictwo
    Fagus sylvatica
    dendroklimatologia
    drzewa lesne
    dendrochronology
    dendroclimatology
    european beech
    fagus sylvatica
    Opis:
    The study focused on tree rings of European beech in the stands in the Iława Forest District. The aim of the study was to analyse the effect of climatic conditions on the formation of the annual ring width at the limits of beech natural distribution in an area where the Atlantic and Continental climate meet and overlap. The mean tree−ring width was relatively wide and equalled 2,89 mm. The obtained time series covered the years between 1900 and 2002. On the basis of the response function analysis and indicator years it was demonstrated that there was a considerable impact of spring/summer precipitation on annual growth ring formation.
    Źródło:
    Sylwan; 2006, 150, 05; 44-50
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sygnał klimatyczny w słojach Picea sitchensis (Bong.) Carriere oraz Pseudotsuga menziesii (Mirb.) Franco
    Climatic signal in tree-rings of Picea sitchensis [Bong.] Carr. and Pseudotsuga menziesii [Mirb.] Franco
    Autorzy:
    Feliksik, E.
    Wilczyński, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015609.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Pseudotsuga menziesii
    sloje przyrostu rocznego
    daglezja zielona
    swierk sitkajski
    lesnictwo
    dendroekologia
    Picea sitchensis
    reakcje przyrostowe
    dendroklimatologia
    drzewa lesne
    pseudotsuga menziesii
    picea sitchensis
    dendroclimatology
    dendroecology
    tree−ring
    Opis:
    Paper presents the results of dendroclimatological investigation on over−centennial populations of Douglas fir and Sitka spruce growing in Polish part of the Baltic Sea shore.
    Źródło:
    Sylwan; 2008, 152, 06; 3-13
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lokalne wzorce przyrostowe daglezji zielonej (Pseudotsuga menziesii (Mirb.) Franco) w Polsce
    Autorzy:
    Feliksik, E.
    Wilczyński, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1024078.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    przyrosty radialne
    dendrochronologia
    Pseudotsuga menziesii
    Polska
    daglezja zielona
    lesnictwo
    wzorce przyrostowe
    drzewa lesne
    pseudotsuga menziesii
    poland
    site chronologies
    tree−rings
    Opis:
    The paper describes a construction and characteristic of site tree−ring chronologies and site indexed chronologies of 50 partial populations od Douglas fir in Poland.
    Źródło:
    Sylwan; 2004, 148, 12; 3-13
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Analiza przyrostów rocznych dwóch sosen (Pinus sylvestris L.) o nietypowej budowie strzały na terenie Nadleśnictwa Borne Sulinowo
    Analysis of tree rings of two atypical pines (Pinus sylvestris L.) in the Borne Sulinowo Forest District
    Autorzy:
    Koprowski, M.
    Zielski, A.
    Skowronek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008867.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Borne Sulinowo
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    strzala drzew
    anomalie rozwojowe
    dendrochronologia
    przyrosty roczne
    dendrochronology
    scots pine
    atypical stem
    Opis:
    The study aimed at dendrochronological and dendroclimatological analysis of radial increments of two Scots pine specimens of atypical stems (fig. 1). Investigated trees grow in the Borne Sulinowo Forest District (tab.). Although the individuals differ with age, the anomaly occurs almost in the same time (fig. 2). Tree−ring widths of analysed pines show greater similarity before the anomaly onset. Atypical stem construction results in variable growth pattern within individual tree. Samples from ‘ridges' are more similar to the master chronology. Climate conditions (temperature in April and June) significantly influence tree ring formation within ‘rows' of tree at site #2 (fig. 3−4). Frost damages originating from extremely low temperature in winter 1956 may be the cause of the observed stem anomaly.
    Źródło:
    Sylwan; 2011, 155, 08; 555-562
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ czyrenia sosnowego (Phellinus pini (Brot.) Pilat) na przyrosty radialne sosny zwyczajnej (Pinus sylvestris L.)
    Effect of Phellinus pini (Brot.) Pilat occurrence on the radial growth of Pinus sylvestris L.
    Autorzy:
    Tomusiak, R.
    Zarzyński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/980244.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    grzyby patogeniczne
    czyren sosnowy
    Phellinus pini
    przyrost drzew
    przyrosty radialne
    red ring rot
    white pocket rot
    scots pine
    tree rings
    Opis:
    Scots pine is the most common tree species in Poland with the share in the species structure of Polish forests exceeding 58%. The most dangerous pathogen of this species is Phellinus pini (Brot.) Pilát), which causes the white pocket rot (also called red ring rot) of pine heartwood. It is estimated that as a result of the fungus’s activity, about 8% of annually harvested pine stems is damaged and worthless. As the Ph. pini damages only heartwood, it is often recognized that its occurrence has no influence on the tree’s physiology. As it is still unknown whether the presence of this fungus also does not affect the cambium responsible for the radial growth. We carried out studies in Scots pine stands located in the Radziwiłłów Forest District (central Poland). We investigated trees from 5th and 7th age classes (Biała Góra and Budy Stare forests, respectively). A total of 60 trees were sampled (30 per site). Half of them were specimens showing advanced symptoms of sickness, while the others were healthy specimens with no evidence of infection. From each tree we took one increment core and measured the tree−ring widths. Average tree−ring width was in case of healthy trees significantly higher than for sick trees. The research showed a significant, even of a dozen percent, reduction in the annual increment of infected trees in relation to healthy trees growing on the same site. Presumably, unidentified chemicals secreted to the cambium by the growing mycelium of Ph. pini may be responsible for this. It also seems that this relationship is progressing with the growing age of tree stands and is particularly visible in old stands, for example in reserves. Thus, Ph. pini could be one of the factors limiting the natural age of pine trees and accelerating their dieback. We also found that the growth of trees affected by the disease is influenced by a factor other than climatic, disturbing the natural rhythm of their radial increments. This factor is most likely the presence of mycelium of Ph. pini in the wood.
    Źródło:
    Sylwan; 2019, 163, 07; 576-583
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lata wskaźnikowe świerka pospolitego w Beskidach Zachodnich
    Pointer years of Norway spruce in the Western Beskidy Mountains (southern Poland)
    Autorzy:
    Wilczyński, S.
    Szymański, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/991365.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gory
    Beskidy Zachodnie
    drzewa lesne
    swierk pospolity
    przyrost drzew
    sloje przyrostu rocznego
    przyrost grubosci
    czynniki klimatyczne
    lata wskaznikowe
    tree rings
    pointer years
    norway spruce
    western beskidy mountains
    altitudinal zone
    Opis:
    The frequency of site and zonal pointer years in Norway spruce in two altitudinal zones (500−900 m and 900−1370 m a.s.l.) in the Western Beskidy Mountains was analysed. In total, 32 tree stands were studied – 16 in each zone. In both zones number of negative site pointer years increased along with increase of number of positive site pointer years. Above 900 m a. s. l. number of site pointer years increased along with the altitude, while below 900 m a.s.l. their number decreased along with the altitude. We found no common pointer years for all 32 populations. In lower zone, short winter, early and very warm spring or high precipitation in June and July in a given year caused negative pointer years. In the upper one positive pointer years occurred after the warm autumn and in years with the warm growing season.
    Źródło:
    Sylwan; 2014, 158, 12; 883-892
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność wybranych cech makrostruktury i gęstości drewna świerkowego pochodzącego z drzewostanów gospodarczych i terenów pogórniczych
    Variability of selected features of macrostructure and density of spruce wood from commercial stands and post-mining areas
    Autorzy:
    Michalec, K.
    Wąsik, R.
    Pająk, M.
    Sikora, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/974056.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    tereny zdegradowane
    drzewostany gospodarcze
    makrostruktura
    sloje przyrostu rocznego
    leśnictwo
    tereny pogórnicze
    drzewostany świerkowe
    drewno świerkowe
    szerokość
    drewno późne
    gęstość drewna
    tree−rings width
    latewood share
    post−mining areas
    reclamation
    Opis:
    The aim of this work was to analyze the tree−ring width, the share of the latewood as well as the density of wood of trees growing in commercial and degraded stands. The research was carried out in the Brynek Forest District (southern Poland) in 3 commercial stands and in 4 degraded stands. For every study plot fifteen spruces were chosen and increment cores were sampled using the Pressler borer. Next, the surface of the cores was smoothed and the width of the annual rings was measured. Latewood zones were determined and the share of latewood was calculated. It was found that the average and minimum tree−ring width was the same in both commercial and degraded stands, while the maximum values were slightly and insignificantly different. In turn, the average share of latewood was higher in trees from commercial stands, but higher minimum and maximum values were recorded in stands on degraded sites. In this case, the differences turned to be statistically significant. The average density of wood was slightly lower in trees from degraded stands compared to wood from commercial stands (413 vs 418 kg/m3). Theminimum and maximum values were also higher in trees from commercial stands. However, this feature did not show a significant difference between analysed groups of stands. We found that despite such significant differences in the terrain formed during the production of zinc and lead ores, the wood of trees growing in these areas hardly shows any differences (except for the share of latewood) in comparison to wood from commercial stands.
    Źródło:
    Sylwan; 2020, 164, 01; 10-15
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jakość drewna sosny zwyczajnej (Pinus sylvestris L.) I. Charakterystyka wybranych cech i właściwości drewna wpływających na jego jakość
    Quality of Scots pine [Pinus sylvestris L.] wood. Part I. Characteristics of selected wood traits and properties affecting its quality
    Autorzy:
    Tomczak, A.
    Pazdrowski, W.
    Jelonek, T.
    Grzywiński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1012211.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    jakosc
    Pinus sylvestris
    drewno pozne
    drewno sosnowe
    seki
    drewno wczesne
    gestosc drewna
    drewno mlodociane
    sloje przyrostu rocznego
    sosna zwyczajna
    drzewa lesne
    wady drewna
    wood quality
    scots pine
    knots
    wood density
    tree rings
    latewood
    juvenile wood
    Opis:
    The study presents the synthetic characteristic of selected wood tissue traits and properties (knots, tree rings, the proportion of latewood, juvenile wood, wood density, dimensions of anatomical elements, cell wall structure), which play significant role in modifications of wood quality. At individual stage of the raw material–product cycle the term "quality" may be interpreted differently, but characteristics determining it remain unchanged. Quality depends on the natural traits and properties of wood.
    Źródło:
    Sylwan; 2009, 153, 06; 363-372
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształtowanie się przyrostu grubości jodeł z Gór Świętokrzyskich
    Radial increment of silver fir from the Swietokrzyskie Mts.
    Autorzy:
    Bruchwald, A
    Dmyterko, E.
    Bijak, S.
    Łukaszewicz, J.
    Niemczyk, M.
    Wrzesiński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989406.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    sloje przyrostu rocznego
    analiza dendrochronologiczna
    Gory Swietokrzyskie
    drzewostany jodlowe
    jodla pospolita
    Abies alba
    przyrost drzew
    przyrost grubosci
    przyrosty radialne
    czynniki srodowiska
    czynniki klimatyczne
    zanieczyszczenia przemyslowe
    abies alba mill.
    tree−rings
    increment reduction
    increment release
    disturbances
    Opis:
    The paper presents the dendrochronological analysis of silver firs (Abies alba Mill.) growing in the canopy layer of the forest stands. We searched for the similarities in the rhythm of radial growth of studied trees and we analysed the response of these stands to the increment disturbances related to the occurrence of adverse climatic factors and the pressure from industrial pollution. The research material was collected in 30 pure and uneven−aged silver fir stands located in the Świetokrzyskie Mountains (central Poland). We investigated the effect of age of the stands and the conditions for their growth (location, forest habitat type) on an average tree−ring width. In order to detect similarities in the rhythm of radial growth of the surveyed stands, we grouped the raw chronologies by the means of the cluster analysis, using Ward's agglomeration procedure with 1−r distance (r – Pearson correlation coefficient). We assessed the incremental response of the investigated stands to the disturbances (situations of significantly reduced radial growth) using indicators of resistance, recovery and resilience proposed by Lloret et al. [2011]. We also studied the influence of the stand age and the forest habitat type on the response of analysed for stands to the detected disturbances. The shortest chronology consisted of 94 tree−rings, while the longest one of 137. Average length of the obtained silver fir chronologies was 119 years. Older fir stands characterised with narrower rings (r=–0.451, p=0.012). Neither the location, nor the forest habitat type are the factors determining the similarity of the rhythm of radial growth of silver firs from the Świętokrzyskie Mountains (p=0.243 and p=0.967 respectively). The extreme climatic conditions responsible for the majority of the short−term (one−year−long) incremental depressions are the factor of regional importance, which affects the growth of investigated trees. Older stands characterized with better possibilities of increment recovery after the disturbance than younger stands (p<0.001), which may be a result of the production of secondary crowns. No consistent differences in the indices of resistance and resilience were found among analysed stands.
    Źródło:
    Sylwan; 2016, 160, 11; 893-904
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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