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Wyszukujesz frazę "tree ring" wg kryterium: Temat


Wyświetlanie 1-12 z 12
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:
Przyczyny krótkookresowych reakcji przyrostowych sosen z różnych siedlisk
Causes of the short-term incremental reactions of Scots pine growing at different sites
Autorzy:
Wilczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/993422.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
sosna zwyczajna
Pinus sylvestris
dendroklimatologia
przyrosty radialne
reakcje przyrostowe
czynniki meteorologiczne
tree−ring
dendroclimatology
scots pine
forest site type
Opis:
In homogeneous climate conditions Scots pine trees at different sites have similar short−term incremental rhythm. It was determined by the temperature of early spring and precipitation in June. Differences in the growth pattern are caused by various sensitivities of pines from different habitats to the temperature in May and precipitation in February and April of the current year.
Źródło:
Sylwan; 2013, 157, 09; 662-670
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Standardy dendrochronologiczne sosny zwyczajnej (Pinus sylvestris L.) i dębu szypułkowego (Quercus robur L.) z północno-wschodniej Polski
Dendrochronological standards of Scots pine (Pinus sylvestris L.) and English oak (Quercus robur L.) from north-eastern Poland
Autorzy:
Krąpiec, M.
Szychowska-Krąpiec, E.
Powiązania:
https://bibliotekanauki.pl/articles/1024214.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Polska Polnocno-Wschodnia
dendrochronologia
Quercus robur
sosna zwyczajna
lesnictwo
dab szypulkowy
standardy dendrochronologiczne
Pinus sylvestris
drzewa lesne
pine
oak
tree−ring analysis
local and regional chronologies
ne poland
Opis:
The study presents results of dendrochronological analyses of Scots pine (162 trees) and English oak (97 trees) from 13 research plots located in NE Poland. The investigations resulted in construction of local chronologies (six for oak and seven for pine), which in turn enabled to define new regional chronologies; 2_NE_PL for pine, covering the period 1738−2003 AD, and Q_NE_PL for oak, 308−year long (1696−2003 AD). The elaborated chronologies allow for absolute dating of wood and yield new data on the extent of dendrochronological signal.
Źródło:
Sylwan; 2004, 148, 07; 11-19
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
Tytuł:
Krótkookresowe reakcje przyrostowe jodły, świerka i sosny rosnących w jednorodnych warunkach siedliskowych
Short-term incremental response of silver fir, Norway spruce and Scots pine growing in uniform habitat conditions
Autorzy:
Wilczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/991702.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendroklimatologia
drzewa lesne
jodla pospolita
Abies alba
swierk pospolity
Picea abies
sosna zwyczajna
Pinus sylvestris
przyrosty radialne
reakcje przyrostowe
dendroclimatology
abies alba
picea abies
pinus sylvestris
tree−ring
central poland
Opis:
Study was performed in multi−species stand located in the Świętokrzyski National Park (central Poland). Silver fir, Norway spruce and Scots pine trees that grew in a uniform habitat conditions were selected. The trees showed the differences and similarities of changes of the size of radial increment, which result from species−specific sensitivity to selected meteorological elements.
Źródło:
Sylwan; 2013, 157, 06; 442-452
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ działalności przemysłowej na drzewostany sosnowe w rejonie Tarnobrzega w świetle analizy dendrochronologicznej
The influence of industry on Scots pine stands in the Tarnobrzeg area on the basis of dendrochronological analysis
Autorzy:
Barniak, J.
Krąpiec, M.
Powiązania:
https://bibliotekanauki.pl/articles/1009636.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Tarnobrzeski Okreg Przemyslowy
lesnictwo
drzewostany sosnowe
dendrochronologia
zanieczyszczenia przemyslowe
oddzialywanie na srodowisko
tereny przemyslowe
sosna zwyczajna
przyrosty roczne
Pinus sylvestris
tree−ring analysis
industrial pollution
pinus sylvestris
tarnobrzeg region
se poland
Opis:
Tree−ring analysis has been used to evaluate the influence of industrial pollution on Scots pine (Pinus sylvestris) growing in the Tarnobrzeg region. 237 samples were taken from stands located in two profiles to picture dependence of health conditions of trees on distance from the emitter. The Tarnobrzeg Sulphur Works was the main source of pollution in that region. Factories in Mielec and Nowa Dęba as well as the Połaniec Power Plant could be additional sources of emission. Response of trees to anthropogenic stress was clearly visible in the years 1970−1990, when growth reductions occurred at the majority of the investigated trees. At the beginning of 1990s the decreasing trend stopped and wider tree−rings could be observed.
Źródło:
Sylwan; 2009, 153, 12; 825-835
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ działalności przemysłowej na szerokość przyrostów rocznych sosen (Pinus sylvestris L.) w rejonie Olkusza
The influence of industry on the tree-ring width of pines [Pinus sylvestris L.] living in the Olkusz region
Autorzy:
Danek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1013368.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
szerokosc
rejon Olkusza
zanieczyszczenia przemyslowe
tereny przemyslowe
sloje przyrostu rocznego
czynniki antropogeniczne
sosna zwyczajna
lesnictwo
zanieczyszczenia powietrza
Pinus sylvestris
drzewa lesne
tree−ring analysis
abrupt growth changes
influence of industry
pinus sylvestris
olkusz region
Opis:
Tree−ring analysis of pine stands living under the influence of industry in south−eastern part of Silesia−Krakow Upland was performed for the last years. Now the new transect was added in the Olkusz region. Previous studies showed the distinct relationship between number of trees with observed reductions and distance from main source of pollution it this region. On the sites localised nearest to zinc−works "Bolesław" the value and the duration of reduction periods were the biggest. On the sites of new transect (OL VI) situated to the north from site OL 15, the influence of zinc−works is rather uncertain. Because of the time of occurrence and the distance form zinc−work, the reductions observed here seem to be the reaction to the other factor – perhaps the local source of pollution. To explain this matter further studies in this region should be done.
Źródło:
Sylwan; 2008, 152, 11; 56-62
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie metod dendrochronologicznych oraz spektrometrycznych w monitorowaniu drzewostanów sosnowych na obszarach przemysłowych
Application of dendrochronology and mass spectrometry in bio-monitoring of Scots pine stands in industrial areas
Autorzy:
Sensuła, B.M.
Wilczyński, S.
Piotrowska, N.
Powiązania:
https://bibliotekanauki.pl/articles/989354.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
tereny przemyslowe
zanieczyszczenia przemyslowe
oddzialywanie na rosliny
reakcje przyrostowe
monitoring
metody badan
drzewostany sosnowe
sosna zwyczajna
Pinus sylvestris
przyrost drzew
analiza dendrochronologiczna
analiza izotopowa
scots pine
bio−monitoring
tree−ring
isotopes
pollution
łaziska górne power plant
Opis:
The main aim of this study was to analyze the variability of width as well as content of stable oxygen and carbon isotopes, and radiocarbon in Pinus sylvestris L. tree rings. Analysed Scots pine stand grew on the fresh mixed coniferous forest habitat type on site located in the vicinity of the power plant in Łaziska Górne (southern Poland). The combined usage of tree ring width and isotopic data allowed to identify how investigated trees have adapted to the pollution. Strong increase of industrial pollution emission was noted on the investigated site between 1960s and 1980s. During that time, the trees reduced their radial incement and the heterogeneity of their reaction increased, whereas their sensitivity to short−term impulses to changes in the environment conditions weakened. We observed depletion rates of 14C and δ13C concentration in α−cellulose related to the CO2 emission into the atmosphere in the processes associated with the fossil fuels combustion. Prior to 2000, a decrease in stomatal conductivity was associated with a minor changes in the net photosynthesis rate and that elevated CO2 increased intrinsic water use efficiency (approximately by 40%).
Źródło:
Sylwan; 2016, 160, 09; 730-740
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cooling and warming of climate of the Earths Northern Hemisphere (on the basis of fluctuations of the oxygen isotope δ18O and dendrological data)
Autorzy:
Boryczka, Jerzy
Stopa-Boryczka, Maria
Unton-Pyziołek, Arleta
Gieszcz, Piotr
Miłaszewska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2034147.pdf
Data publikacji:
2010-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
isotope δ18O
Devon Island
Pinus sylvestris
Picea abies
tree the ring widths
solar radiation
periods
moment of inertia of planets
mass momentum of largest planets
forecast
Opis:
Content fluctuations of the oxygen isotope δ18O in the Devon Island ice core during the last 100 000 years are a measure of climate fluctuations in the Northern Hemisphere. The course of content of the oxygen isotope δ18O and the sums of solar radiation reaching the upper edge of the atmosphere are characterized by approximate minima and maxima (by positive correlation). This proves that, during the last hundred thousand years, climate fluctuations (cooling and warming) in the Northern Hemisphere were conditioned by long-term changes of the orbit and altitude of the Earth's axis. Climate fluctuation forecasts for the Northern Hemisphere were developed for the next 40 000 years on the basis of the established periods of change of the oxygen isotope δ18O and the known solar radiation periodicity. Climate changes in Europe during the last 25000 years were presented together with a forecast for 1000 years (according to organic substances in deposits and radiation) as well as climate changes in Europe in the period from -500 years BP to 2100 AD (according to δ18O and pine tree-rings). It showed that climate changes depended on the concentration of planet mass in relation to the ecliptic plane (from the gravitational impact of planets on the Sun). Concentration courses of planet mass in the Solar System and climate fluctuations in the Northern Hemisphere were compared. Of interest are examples of synchronic fluctuations, i.e. dispersal of planet mass in the Solar System, the widths of pine and spruce tree rings and air temperatures in Europe.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2010, 14; 47-58
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertical variability of selected macrostructural properties of juvenile wood organization in trunks of Scots pine [Pinus sylvestris L.] trees
Autorzy:
Tomczak, A
Pazdrowski, W.
Jelonek, T.
Stypula, I.
Powiązania:
https://bibliotekanauki.pl/articles/58813.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Scotch pine
vertical variability
annual ring
plant development
Pinus sylvestris
juvenile wood
tree
botany
maturation
trunk
late wood proportion
axial heterogeneity
Opis:
The study makes an attempt to analyse the width of annual rings, the width of the latewood zone and the proportion of the latewood within juvenile wood along trunks of Scots pine (Pinus sylvestris L.) trees and to verify the hypothesis about the heterogeneous properties of juvenile wood in a single trunk. It was found that the above-mentioned macrostructural elements of wood structure showed a curvilinear correlation with the height of measurement points along the tree trunk. As the distance from the base of trunk increased, the width of the annual ring and the width of the latewood zone decreased, while the proportion of the latewood increased. These types of changes can affect positively physical and mechanical properties of wood tissue. It can be assumed that there is a mechanism which modifies properties of juvenile wood causing axial diversification of the analysed type of wood tissue. It is probable that axial heterogeneity results in advantageous changes in the mechanics of the tree trunk.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Powiązanie przyrostu radialnego obcych i rodzimych gatunków drzew w LZD Rogów z wybranymi parametrami korony
Radial growth of alien and native tree species growing in LZD Rogow with regard to selected crown parameters
Autorzy:
Bijak, S.
Powiązania:
https://bibliotekanauki.pl/articles/991562.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrometria
drzewa lesne
gatunki obce
daglezja zielona
Pseudotsuga menziesii
jodla olbrzymia
Abies grandis
jodla kaukaska
Abies nordmanniana
swierk kaukaski
Picea orientalis
zywotnik olbrzymi
Thuja plicata
dab czerwony
Quercus rubra
gatunki rodzime
jodla pospolita
Abies alba
modrzew europejski
Larix decidua
sosna zwyczajna
Pinus sylvestris
dab szypulkowy
Quercus robur
przyrost grubosci
przyrosty radialne
korony drzew
dlugosc korony
szerokosc korony
pole rzutu korony
przestrzen pojedynczego drzewa
tree−ring width
crown diameters and size
alien and native species
central poland
Opis:
Paper analyses relationships between radial growth and seven crown−related parameters (crown length, relative length, width, slenderness, projection area and volume as well as single tree space) for ten alien and native tree species growing in 'common garden' conditions in the WULS−SGGW Forest Experimental Station in Rogów (central Poland). Significant correlation was found between 10− and 15−years mean tree−ring width and all analysed crown parameters as well as single tree space for Abies grandis, Abies nordmanniana and, except for crown length and its relative length, for Pinus sylvestris. No relationship was observed between radial increment of Larix decidua, Pseudotsuga menziesii and Quercus rubra and any of analysed crown parameters.
Źródło:
Sylwan; 2013, 157, 04; 278-287
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
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