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Wyszukujesz frazę "tree−rings" wg kryterium: Wszystkie pola


Tytuł:
Possibility of identification of negative extreme climatic events using Pinus sylvestris tree-rings in Transdanubia, Hungary
Autorzy:
Misi, D.
Nafradi, K.
Powiązania:
https://bibliotekanauki.pl/articles/41465.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
identification
climatic event
Pinus sylvestris
Scotch pine
drought
tree ring
Transdanubia region
Hungary
Opis:
Negative climatic extremes occur more frequently in the last decades. Since the Carpathian Basin is highly concerned in their impacts it is important to investigate prior events and estimate the response of the environment to them to get useful information for the future. In our work we selected a stand which is seriously affected by unfavorable summer conditions to examine what kind of fingerprint the negative extreme events have left. We investigated narrow rings and intra-annual density fluctuation to describe years with extreme events. Their stabilized frequency was tested against climatic and groundwater data, as well as against aridity index to determine climate-growth relationships using Pearson and Spearman’s correlations. Our results show positive significant correspondence between summer precipitation and treering growth together with negative connection with summer temperature. The Spearman’s correlation between stabilized frequency of intra-annual density fluctuations, narrow rings and climate data ended with significant relationship in summer. According to the comparison of intra-annual density fluctuation and narrow ring data with drought periods it can be said that narrow rings are better tool for the examination of negative extreme events in summer.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tree-like matrix rings
Autorzy:
Dlab, Vlastimil
Powiązania:
https://bibliotekanauki.pl/articles/1377667.pdf
Data publikacji:
1971
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Fundamenta Mathematicae; 1971, 72, 2; 155-163
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climatic sensitivity of delta13C in tree rings of Quercus robur L., Populus tremula L. and Pinus sylvestris L. in Vilnius region (eastern Lithuania)
Autorzy:
Barisevičiūtė, Rūta
Skipitytė, Raminta
Pukienė, Rutilė
Lapeikaitė, Indrė
Kakaras, Irmantas
Remeikis, Vidmantas
Powiązania:
https://bibliotekanauki.pl/articles/956802.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
δ13c
climate
tree-rings
dendroclimatology
Opis:
The aim of this work was to evaluate the possibilities of using carbon isotope measurements to determine a strong climate signal of trees influenced by the pollutant stress as well as to examine the difference in reaction of several investigated species to the climate change. Eurasian aspen (Populus tremula), pedunculate oak (Quercus robur) and Scots pine (Pinus sylvestris) trees from Vilnius region were selected for the stable carbon isotope analysis. Our results showed that over the last 70 years (1940–2009) the climate during summer months was the most important factor for the variation of stable carbon isotope values in tree rings, but its influence on different tree species slightly differed. δ13C measurements in Eurasian aspen best corresponded to the air temperature and the precipitation signal in July–August. Oak was more sensitive to the temperature and relative humidity in June–July. A positive correlation coefficient with temperature in the period of transition from the previous vegetation to dormancy season (previous September–October) was specific to oak as well. Scots pine grown at a polluted site was sensitive only to precipitation in summer months of the growing season. The correlation between δ13C measurements and climate data was determined to be from low to moderate in all the investigated trees and did not exceed the value of |r| ≥ 0.71 suggested by McCarroll et al. (2003) as a necessary value for the reliable climate reconstruction. However, the highest correlation coefficient values of 0.65 and 0.61, obtained between the maximal air temperature throughout the hydrological year (previous September–current August) and δ13C in oak rings or between mean monthly sunshine hours throughout July–August and δ13C values in aspen rings, respectively, are comparable with those used in many palaeoclimatic reconstructions that were based even on weaker correlations.
Źródło:
Dendrobiology; 2017, 78; 1-9
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth drivers of monumental wild service tree (Sorbus torminalis) out of its natural range in Kyiv, Ukraine
Autorzy:
Prokopuk, Y.
Leshcheniuk, O.
Sukhomlyn, M.
Matiashuk, R.
Budzhak, V.
Netsvetov, M.
Powiązania:
https://bibliotekanauki.pl/articles/2130184.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
wild service tree
tree-rings
growth pattern
climatic factors
Opis:
Wild service tree (Sorbus torminalis) is a rare, endangered, relict species, that is protected by law in many European countries. Outside the species distribution range, the trees are usually planted in botanical gardens, parks, arboretums, and at the roadside. Such old introduced trees are an important source of knowledge about species’ acclimation process and current growth-limiting factors in the new environment. In Kyiv, the oldest live S. torminalis trees have been planted in botanical gardens and arboretums after the 1950s. In addition, some trees of this species are preserved in front of the historical building Liberman’s mansion, but the year of their planting remains unknown. Regarding dendroclimatological investigations of this species are scarce and have been provided only in Central European forests, a detailed analysis of the species growth-to-climate relationships should be performed not only the species’ natural range but also in its secondary ranges. In this article, we studied three S. torminalis trees in a historical place in Kyiv to determine their age and evaluate environmental conditions driving the growth of this rare species out of its natural range in Kyiv. To reach our goal we used the dendrochronological approaches, i.e. tree-ring dating, partial correlation analysis using stationary and moving time windows. Our results showed that S. torminalis trees were planted after the last building owner S. Liberman’s death (1917). The studied trees are the oldest of known alive S. torminalis trees in Kyiv. Dendroclimatological results revealed S. torminalis is sensitive to higher air temperature and moisture excess in the period of wood formation in Kyiv. S. torminalis trees at 2 Bankova Street are the oldest species examples in Kyiv and have important historical, cultural, and scientific values. S. torminalis species could be widely used in urban forestry, particularly in regions with projected soil moisture shortening.
Źródło:
Dendrobiology; 2022, 87; 163-170
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carbon-13 in alpha-cellulose of oak latewood (Jędrzejów, Southern Poland) during the Maunder Minimum
Autorzy:
Pazdur, A.
Korput, S.
Fogtman, M.
Szczepanek, M.
Hałas, S.
Krąpiec, M.
Szychowska-Krąpiec, E.
Powiązania:
https://bibliotekanauki.pl/articles/2058897.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
13C isotope
alpha-cellulose
Maunder Minimum
tree-rings
Opis:
We have studied the δ13C signature in latewood alpha-cellulose of an ancient oak (Quercus robur L.) from a Cisterian Abbey belfry in Jędrzejów (Southern Poland). The time scale for the delta 13C record during 1631-1765 AD was built on the basis of detailed dendrochronology studies. Techniques available for extraction of alpha-cellulose from small samples have been used, the mean value of alpha-cellulose extraction efficiency being ca. 35%. In the delta 13C record of alpha-cellulose the cooling between 1650-1700 AD is clearly visible as a decrease of about 1.5‰. This period is consistent with the interval of the lowest solaractivity between 1645 and 1715 AD, which is known as the Maunder Minimum. Anti-correlation between δ13C and δ13C during the Maunder Minimum was observed but δ13C record is delayed by about 30 years with respect to the Maunder Minimum.
Źródło:
Geological Quarterly; 2005, 49, 2; 165-172
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climatic signals in tree rings of Juniperus turkestanica in the Gulcha River Basin (Kyrgyzstan), reveals the recent wetting trend of high Asia
Autorzy:
Chen, F.
He, Q.
Bakytbek, E.
Yu, S.-L.
Zhang, R.-B.
Powiązania:
https://bibliotekanauki.pl/articles/41289.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
Drought variability of Kyrgyzstan is an important component of climate change of high Asia. Long-term information about the history of drought is, however, limited because the instrumental records are short. Here, we developed three chronologies for juniper trees (Juniperus turkestanica) under different microsite conditions in the Gulcha River Basin, Kyrgyzstan. The three chronologies (GUL, GUR and GUD) were compared with climate data which covered the study area. Growth of the GUL site correlates positively with May–June precipitation of the current growing season and September precipitation of the previous year, but negatively with temperatures of prior July, current May and July. Growth of the GUR site correlates positively with precipitation of current May and September, and negatively with temperature of current June and July. Ring width at GUD site is negatively correlated with temperature of the current May and July, and positively correlated with precipitation of prior December and current September. Response analysis shows that water availability is the main factor limiting the radial growth of juniper trees at the GUL and GUD sites. Based on the relationships derived from climate response analyses, the potential of tree-ring chronologies from this species to provide drought reconstructions in the Gulcha River Basin has been established. The GUL chronology and other moisture sensitive tree-ring series from high Asia capture the recent wetting trend. The records contribute to a growing tree-ring network for high Asia, including sites in China, Kyrgyzstan, Pakistan and Tajikistan.
Źródło:
Dendrobiology; 2015, 74
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyclic changes of climate in Europe during the last millenium according to dendrological data
Autorzy:
Boryczka, Jerzy
Stopa-Boryczka, Maria
Bijak, Szymon
Miłaszewska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2029440.pdf
Data publikacji:
2008-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
air temperature
NAO
solar activity
spectrum
periods
tendencies
forecast
tree-rings
Opis:
The paper discusses periodic climate changes in Europe determined on the basis of dendrochronological data dating back one thousand years. In tree-ring width sequences of trees growing in Poland there are approximately 8-, 11-, 100- and 180- year periods. The tree-ring widths of oaks growing in Poland for the last centuries are characterised, without any significant amplitude, by 8- and 11-year periods (Tab. 1). In turn, chronologies of pine, spruce, larch, oak and fir growing in Europe are characterised by 100- and 180-year periods (Tab. 2). Cycles of dendrochronological variables approximate cycles of air temperature and North Atlantic Oscillation NAO as well as those of solar activity. The forecast of annual growth (ring width) for 2001-2100 was calculated by interference of the tree-ring width cycles determined by the sinusoidal regression method. Because of much longer empirical sequences of specific periods, the credibility of forecasts for treering widths is greater than that for air temperature.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 57-66
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy dało się przewidzieć? - osuwisko na Średniaku w świetle informacji z przyrostów rocznych
Could we expect it? - the Sredniak landslide and tree-rings
Autorzy:
Remisz, J.
Bijak, S.
Przoch, K.
Witek, M.
Powiązania:
https://bibliotekanauki.pl/articles/882589.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
Sudety Wschodnie
masyw Snieznika
Sredniak
osuwiska
drzewa
swierk
analiza dendrochronologiczna
przyrosty roczne
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 3[40]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dendrochronological study of the Sawicki landslide activity in the Beskid Niski Mts (Polish Flysch Carpathians)
Autorzy:
Kiszka, K.
Powiązania:
https://bibliotekanauki.pl/articles/294653.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
dendrogeomorphology
mass movement
landslide activity
Sawicki landslide
eccentricity of tree rings
Beskid Niski Mountains
Opis:
The article presents the results of the dendrogeomorphological study of the activity of the Sawicki landslide, located in the Beskid Niski Mts (Polish Flysch Carpathians). The study was conducted within two study sites in the lower part of the landslide. The landslide movements were dated using the dendrogeomorphological method, basing on the eccentricity indicators calculated for the two coniferous species, i.e. Scots pine (Pinus sylvestris) and silver fir (Abies alba). It was found landslide activity in years: 1899, 1901, 1905, 1910, 1913–1914, 1920–1921, 1929–1931, 1935, 1937, 1945, 1977, 1979, 1981, 1984–1985, 1990, 1992–1993, 1997, 2003–2004, 2006, 2010–2012. The greatest activity was characterized for the northern part of the study site B and the south-western slopes of the Szklarki stream valley (study site A). Studies have shown only a partial dependence between precipitation and landslide episodes. The data were confronted with the results of dendrogeomorphological studies, conducted in the northern and central parts of the landslide. The results demonstrate the significant complexity of mass movements within large-area landslide.
Źródło:
Landform Analysis; 2016, 32; 9-26
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zagrożenia osuwaniem na postawie analizy przyrostów rocznych olszy nepalskiej (Syczuan, Chiny)
Landslide risk assessment based on the analysis of Nepalese alder tree rings (Sichuan, China)
Autorzy:
Malik, I.
Tie, Y.
Wistuba, M.
Jiang, J.
Owczarek, P.
Hapczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/880656.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
osuwiska
ocena zagrozenia
dendrochronologia
drzewa
olcha nepalska
przyrost drzew
sloje przyrostu rocznego
dekoncentrycznosc
prowincja Syczuan
Chiny
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2016, 18, 3[48]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł

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