/ Y. Savva, F. Schweingruber, L. I. Milyutin, E. Vaganov // Trees. Structure and Function. - 2002. - Vol. 16, № 4-5. - С. 313-324
Аннотация: Seeds of Scots pine provenances originating from all over Russia were planted in the Boguchany provenance trial at a central Siberian location (southern taiga) in 1974. Eight tree-ring density and width parameters for 16 different provenances were measured with densitometric techniques. The tree-ring data were recorded from 1982 to 1996. Correlation analysis calculated by raw series showed that tree-ring width decreases and percentage of latewood increases with an increase in the latitude of the seed source. High variability was found for raw tree-ring characteristics from tree to tree within each provenance for an observed period (individual variability). The age trend of each tree is well described by the chosen fitting curve, and is similar for the mean series of each provenance. As a consequence of these findings, the indexed chronology for each provenance mainly shows climatic signals. The SD of the indexed chronology (chronological variability) is low for each provenance, showing low sensitivity to climatic influences. A cluster analysis of provenances represented by tree-ring characteristics differentiated the provenances into three groups. However, the statistical distance between the groups was minor. So we can confirm that Scots pine provenances are highly adaptable to local ecological conditions and regional climatic influences.
WOS,
Полный текст,
Scopus
Держатели документа:
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk, Russia
Доп.точки доступа:
Schweingruber, F. H.; Швайнгрубер Ф.Х.; Milyutin, Leonid Iosifovich; Милютин, Леонид Иосифович; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Савва, Юлия Владимировна
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 43
Genetic and environmental signals in tree rings from different provenances of PINUS SYLVESTRIS L. planted in the southern taiga, Central Siberia
Wildfire dynamics in mid-siberian larch dominated forests
: материалы временных коллективов / V. I. Kharuk, K. J. Ranson, M. L. Dvinskaya // Environmental change in Siberia: earth observation, field studies and modelling. - Dordrecht et. al. : Springer, 2010. - С. 83-100. - Библиогр. в конце ст.
Аннотация: The long-term wildfire dynamics, including fire return interval (FRI), in the zone of larch dominance and the "larch-mixed taiga" ecotone were examined. A wildfire chronology encopassing the fifteenth through the twentieth centuries was developoed by analyzing tree stem fire scars. Average FRI determined from stem fire scar dating was 82 +,- 7 years in the zone of larch dominance. FRI was found to be dependent on site topography. FRI on north-east facing slopes in the zone of larch dominance was 86 +,- 11 years. FRI was siignificantly less on south-west facing slopes at 61 +,- 8 years and flat terrain at 68 +,- 14 years. The implications of the observed trends on the larch community are discussed.
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
Аннотация: The long-term wildfire dynamics, including fire return interval (FRI), in the zone of larch dominance and the "larch-mixed taiga" ecotone were examined. A wildfire chronology encopassing the fifteenth through the twentieth centuries was developoed by analyzing tree stem fire scars. Average FRI determined from stem fire scar dating was 82 +,- 7 years in the zone of larch dominance. FRI was found to be dependent on site topography. FRI on north-east facing slopes in the zone of larch dominance was 86 +,- 11 years. FRI was siignificantly less on south-west facing slopes at 61 +,- 8 years and flat terrain at 68 +,- 14 years. The implications of the observed trends on the larch community are discussed.
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
Reassessing the evidence for tree-growth and inferred temperature change during the Common Era in Yamalia, northwest Siberia
/ K. R. Briffa [et al.] // Quat. Sci. Rev. - 2013. - Vol. 72. - P83-107, DOI 10.1016/j.quascirev.2013.04.008. - Cited References: 70. - KRB, TMM and TJO acknowledge support from NERC (NE/G018863/1). RMH, AVK, VSM and SGS acknowledge support from the partnership project of the Ural and Siberian Branches of the Russian Academy of Sciences (No 12-C-4-1038 and No 69). SGS, VSM and RMH acknowledge support from the Russian Foundation for Basic Research (No 11-04-00623-a, No 13-04-00961-a and No 13-04-02058).
. - 25. - ISSN 0277-3791
РУБ Geography, Physical + Geosciences, Multidisciplinary
Аннотация: The development of research into the history of tree growth and inferred summer temperature changes in Yamaha spanning the last 2000 years is reviewed. One focus is the evolving production of tree-ring width (TRW) and tree-ring maximum-latewood density (MXD) larch (Larix sibirica) chronologies, incorporating different applications of Regional Curve Standardisation (RCS). Another focus is the comparison of independent data representing past tree growth in adjacent Yamaha areas: Yamal and Polar Urals, and the examination of the evidence for common growth behaviour at different timescales. The sample data we use are far more numerous and cover a longer time-span at Yamal compared to the Polar Urals, but Yamal has only TRW, while there are both TRW and MXD for the Polar Urals. We use more data (sub-fossil and from living trees) than in previous dendroclimatic studies in this region. We develop a new TRW chronology for Yamal, more than 2000 years long and running up to 2005. For the Polar Urals we develop new TRW and MXD chronologies that show good agreement at short (<15 years) and medium (15-100 years) timescales demonstrating the validity of attempts to reconcile the evidence of longer-timescale information that they provide. We use a "conservative" application of the RCS approach (two-curve signal-free RCS), guarding against the possibility of "modern sample bias": a possible inflation of recent chronology values arising out of inadvertent selection of mostly relatively fast-growing trees in recent centuries. We also transform tree indices to have a normal distribution to remove the positive chronology skew often apparent in RCS TRW chronologies. This also reduces the apparent magnitude of 20th century tree-growth levels. There is generally good agreement between all chronologies as regards the major features of the decadal to centennial variability. Low tree-growth periods for which the inferred summer temperatures are approximately 2.5 degrees C below the 1961-90 reference are apparent in the 15-year smoothed reconstructions, centred around 1005, 1300, 1455, 1530, particularly the 1810s where the inferred cooling reaches -4 degrees C or even -6 degrees C for individual years, and the 1880s. These are superimposed on generally cool pre-20th century conditions: the long-term means of the pre-1900 reconstructed temperature anomalies range from -0.6 to -0.9 degrees C in our alternative reconstructions. There are numerous periods of one or two decades with relatively high growth (and inferred summer temperatures close to the 1961-1990 level) but at longer timescales only the 40-year period centred at 250 CE appears comparable with 20th century warmth. Although the central temperature estimate for this period is below that for the recent period, when we take into account the uncertainties we cannot be highly confident that recent warmth has exceeded the temperature of this earlier warm period. While there are clear warm decades either side of 1000 CE, neither TRW nor MXD data support the conclusion that temperatures were exceptionally high during medieval times. One previous version of the Polar Urals TRW chronology is shown here to be in error due to an injudicious application of RCS to non-homogeneous sample data, partly derived from root-collar samples that produce spuriously high chronology values in the 11th and 15th centuries. This biased chronology has been used in a number of recent studies aimed at reconstructing wider scale temperature histories. All of the chronologies we have produced here clearly show a generally high level of growth throughout their most recent 80 years. Allowing for chronology and reconstruction uncertainty, the mean of the last 100 years of the reconstruction is likely warmer than any century in the last 2000 years in this region. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Briffa, Keith R.
Melvin, Thomas M.
Osborn, Timothy J.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Hantemirov, Rashit M.
Mazepa, Valeriy S.
Shiyatov, Stepan G.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Ekaterinburg 620144, Russia
[Kirdyanov, Alexander V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Esper, Jan] Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Briffa, K.R.; Melvin, T.M.; Osborn, T.J.; Hantemirov, R.M.; Kirdyanov, A.V.; Mazepa, V.S.; Shiyatov, S.G.; Esper, J...
Рубрики:
REGIONAL CURVE STANDARDIZATION
TROPICAL NORTHERN-HEMISPHERE
SUMMER TEMPERATURES
RING CHRONOLOGIES
CLIMATE VARIABILITY
2 MILLENNIA
RECONSTRUCTION
AMPLIFICATION
REGRESSION
HOLOCENE
Кл.слова (ненормированные):
Dendroclimatology -- Climate reconstruction -- Medieval Warm Period -- Polar Urals -- Yamal -- Summer temperature
REGIONAL CURVE STANDARDIZATION
TROPICAL NORTHERN-HEMISPHERE
SUMMER TEMPERATURES
RING CHRONOLOGIES
CLIMATE VARIABILITY
2 MILLENNIA
RECONSTRUCTION
AMPLIFICATION
REGRESSION
HOLOCENE
Кл.слова (ненормированные):
Dendroclimatology -- Climate reconstruction -- Medieval Warm Period -- Polar Urals -- Yamal -- Summer temperature
Аннотация: The development of research into the history of tree growth and inferred summer temperature changes in Yamaha spanning the last 2000 years is reviewed. One focus is the evolving production of tree-ring width (TRW) and tree-ring maximum-latewood density (MXD) larch (Larix sibirica) chronologies, incorporating different applications of Regional Curve Standardisation (RCS). Another focus is the comparison of independent data representing past tree growth in adjacent Yamaha areas: Yamal and Polar Urals, and the examination of the evidence for common growth behaviour at different timescales. The sample data we use are far more numerous and cover a longer time-span at Yamal compared to the Polar Urals, but Yamal has only TRW, while there are both TRW and MXD for the Polar Urals. We use more data (sub-fossil and from living trees) than in previous dendroclimatic studies in this region. We develop a new TRW chronology for Yamal, more than 2000 years long and running up to 2005. For the Polar Urals we develop new TRW and MXD chronologies that show good agreement at short (<15 years) and medium (15-100 years) timescales demonstrating the validity of attempts to reconcile the evidence of longer-timescale information that they provide. We use a "conservative" application of the RCS approach (two-curve signal-free RCS), guarding against the possibility of "modern sample bias": a possible inflation of recent chronology values arising out of inadvertent selection of mostly relatively fast-growing trees in recent centuries. We also transform tree indices to have a normal distribution to remove the positive chronology skew often apparent in RCS TRW chronologies. This also reduces the apparent magnitude of 20th century tree-growth levels. There is generally good agreement between all chronologies as regards the major features of the decadal to centennial variability. Low tree-growth periods for which the inferred summer temperatures are approximately 2.5 degrees C below the 1961-90 reference are apparent in the 15-year smoothed reconstructions, centred around 1005, 1300, 1455, 1530, particularly the 1810s where the inferred cooling reaches -4 degrees C or even -6 degrees C for individual years, and the 1880s. These are superimposed on generally cool pre-20th century conditions: the long-term means of the pre-1900 reconstructed temperature anomalies range from -0.6 to -0.9 degrees C in our alternative reconstructions. There are numerous periods of one or two decades with relatively high growth (and inferred summer temperatures close to the 1961-1990 level) but at longer timescales only the 40-year period centred at 250 CE appears comparable with 20th century warmth. Although the central temperature estimate for this period is below that for the recent period, when we take into account the uncertainties we cannot be highly confident that recent warmth has exceeded the temperature of this earlier warm period. While there are clear warm decades either side of 1000 CE, neither TRW nor MXD data support the conclusion that temperatures were exceptionally high during medieval times. One previous version of the Polar Urals TRW chronology is shown here to be in error due to an injudicious application of RCS to non-homogeneous sample data, partly derived from root-collar samples that produce spuriously high chronology values in the 11th and 15th centuries. This biased chronology has been used in a number of recent studies aimed at reconstructing wider scale temperature histories. All of the chronologies we have produced here clearly show a generally high level of growth throughout their most recent 80 years. Allowing for chronology and reconstruction uncertainty, the mean of the last 100 years of the reconstruction is likely warmer than any century in the last 2000 years in this region. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Briffa, Keith R.
Melvin, Thomas M.
Osborn, Timothy J.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Hantemirov, Rashit M.
Mazepa, Valeriy S.
Shiyatov, Stepan G.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Ekaterinburg 620144, Russia
[Kirdyanov, Alexander V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Esper, Jan] Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Briffa, K.R.; Melvin, T.M.; Osborn, T.J.; Hantemirov, R.M.; Kirdyanov, A.V.; Mazepa, V.S.; Shiyatov, S.G.; Esper, J...
TEMPERATURE-INDUCED RESPONSES OF XYLEM STRUCTURE OF LARIX SIBIRICA (PINACEAE) FROM THE RUSSIAN ALTAY
/ P. . Fonti [et al.] // Am. J. Bot. - 2013. - Vol. 100, Is. 7. - P1332-1343, DOI 10.3732/ajb.1200484. - Cited References: 53. - The authors thank N. S. van Doorn for editing the English. This work has been supported by the Russian Foundation for Basic Research (Project Number 11-04-91153_a) and the Swiss National Science Foundation projects "Identifying seasonal climatic signals from water conducting cells in tree rings" (Nr. IZK0Z3_131408), "Tree growth and forest ecosystem functioning in Eurasia under changing climate" (Nr. IZ73Z0_128035), and "INtra-seasonal Tree growth along Elevational GRAdients in the European Alps" (INTEGRAL, Nr 200021_121859), and the Ministry of Education and Science of the Russian Federation (Scientific School 5327.2012.4).
. - 12. - ISSN 0002-9122
РУБ Plant Sciences
Аннотация: Premise of the study: Xylem structure determines the hydraulic and mechanical properties of a stem, and its plasticity is fundamental for maintaining tree performance under changing conditions. Unveiling the mechanism and the range of xylem adjustment is thus necessary to anticipate climate change impacts on vegetation. Methods: To understand the mechanistic process and the functional impact of xylem responses to warming in a cold-limited environment, we investigated the relationship between temperature and tracheid anatomy along a 312-yr tree-ring chronology of Larix sibirica trees from the Altay Mountains in Russia. Key results: Climate-growth analyses indicated that warming favors wider earlywood cell lumen, thicker laewood walls, denser maximum latewood, and wider rings. The temperature signal of the latewood was stronger (r > 0.7) and covered a longer and more stable period (from June to August) than that of earlywood and tree-ring width. Long-term analyses indicated a diverging trend between lumen and cell wall of early-and latewood. Conclusions: Xylem anatomy appears to respond to warming temperatures. A warmer early-growing season raises water conduction capacity by increasing the number and size of earlywood tracheids. The higher-performing earlywood tracheids promote more carbon fixation of the latewood cells by incrementing the rate of assimilation when summer conditions are favorable for growth. The diverging long-term variation of lumen and cell wall in earlywood vs. latewood suggests that xylem adjustments in latewood increase mechanical integrity and support increasing tree size under the ameliorated growing conditions.
Полный текст,
WOS,
Scopus
Держатели документа:
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Birmensdorf, Switzerland
[Bryukhanova, Marina V.
Kirdyanov, Alexander V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Myglan, Vladimir S.
Naumova, Oksana V.
Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Fonti, P...; Bryukhanova, M.V.; Myglan, V.S.; Kirdyanov, A.V.; Naumova, O.V.; Vaganov, E.A.
Рубрики:
TREE-RING WIDTH
WOOD ANATOMY
HYDRAULIC ARCHITECTURE
SCOTS PINE
TRACHEID DIMENSIONS
SUMMER TEMPERATURE
DROUGHT
MORTALITY
CLIMATE
GROWTH
Кл.слова (ненормированные):
climatic conditions -- Larix sibirica -- Pinaceae -- tracheid lumen -- tracheid wall -- tree-ring anatomy -- wood density -- xylem anatomical traits
TREE-RING WIDTH
WOOD ANATOMY
HYDRAULIC ARCHITECTURE
SCOTS PINE
TRACHEID DIMENSIONS
SUMMER TEMPERATURE
DROUGHT
MORTALITY
CLIMATE
GROWTH
Кл.слова (ненормированные):
climatic conditions -- Larix sibirica -- Pinaceae -- tracheid lumen -- tracheid wall -- tree-ring anatomy -- wood density -- xylem anatomical traits
Аннотация: Premise of the study: Xylem structure determines the hydraulic and mechanical properties of a stem, and its plasticity is fundamental for maintaining tree performance under changing conditions. Unveiling the mechanism and the range of xylem adjustment is thus necessary to anticipate climate change impacts on vegetation. Methods: To understand the mechanistic process and the functional impact of xylem responses to warming in a cold-limited environment, we investigated the relationship between temperature and tracheid anatomy along a 312-yr tree-ring chronology of Larix sibirica trees from the Altay Mountains in Russia. Key results: Climate-growth analyses indicated that warming favors wider earlywood cell lumen, thicker laewood walls, denser maximum latewood, and wider rings. The temperature signal of the latewood was stronger (r > 0.7) and covered a longer and more stable period (from June to August) than that of earlywood and tree-ring width. Long-term analyses indicated a diverging trend between lumen and cell wall of early-and latewood. Conclusions: Xylem anatomy appears to respond to warming temperatures. A warmer early-growing season raises water conduction capacity by increasing the number and size of earlywood tracheids. The higher-performing earlywood tracheids promote more carbon fixation of the latewood cells by incrementing the rate of assimilation when summer conditions are favorable for growth. The diverging long-term variation of lumen and cell wall in earlywood vs. latewood suggests that xylem adjustments in latewood increase mechanical integrity and support increasing tree size under the ameliorated growing conditions.
Полный текст,
WOS,
Scopus
Держатели документа:
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Birmensdorf, Switzerland
[Bryukhanova, Marina V.
Kirdyanov, Alexander V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Myglan, Vladimir S.
Naumova, Oksana V.
Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Fonti, P...; Bryukhanova, M.V.; Myglan, V.S.; Kirdyanov, A.V.; Naumova, O.V.; Vaganov, E.A.
Declining fires in Larix-dominated forests in northern Irkutsk district
[Text] / T. . Wallenius [et al.] // Int. J. Wildland Fire. - 2011. - Vol. 20, Is. 2. - P248-254, DOI 10.1071/WF10020. - Cited References: 43. - Aleksey Sadvordaev, Galina Zrazhevskaya, Toivo Haltia and Antti Lavikainen helped with the challenging arrangements and the field work. Oskar Ofluds Stiftelse, Nordenskiolds Samfundet and Ulla Wallenius funded the expedition to central Siberia. The Maj and Tor Nessling Foundation (grant number 2003064), Emil Aaltonen Foundation and Finnish Academy (grant number 121919) financed this long-duration study from field work to publication.
. - 7. - ISSN 1049-8001
РУБ Forestry
Аннотация: To study the poorly known fire history of Larix-dominated forest in central Siberia, we collected samples from 200 trees in 46 systematically located study plots. Our study area stretches similar to 90 km from north to south along the River Nizhnyaya Tunguska in northern Irkustk district. Cross-dated tree-ring chronology for all samples combined extended from the year 1360 AD to the present and included 76 fire years and 88 separate fire events. Average fire cycle gradually lengthened from 52 years in the 18th century to 164 years in the 20th century. During the same time, the number of recorded fires decreased even more steeply, i.e. by more than 85%. Fires were more numerous but smaller in the past. Contrary to expectations, climate change in the 20th century has not resulted in increased forest fires in this region. Fire suppression may have contributed to the scarcity of fires since the 1950s. However, a significant decline in fires was evident earlier; therefore an additional explanation is required, a reduction in human-caused ignitions being likely in the light of historical accounts.
WOS,
Scopus
Держатели документа:
[Wallenius, Tuomo
Heikkinen, Juha] Finnish Forest Res Inst, Vantaa Res Unit, FI-01301 Vantaa, Finland
[Larjavaara, Markku] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
[Shibistova, Olga] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Wallenius, T...; Larjavaara, M...; Heikkinen, J...; Shibistova, O...
Рубрики:
BOREAL FOREST
CLIMATE-CHANGE
FREQUENCY
HISTORY
RUSSIA
LANDSCAPE
WILDFIRE
REGIMES
CANADA
SITE
Кл.слова (ненормированные):
dendrochronology -- fire cycle -- fire history -- fire scar -- forest dynamics -- human influence -- Larix gmelinii -- natural -- permafrost region -- Pinus sylvestris -- Siberia
BOREAL FOREST
CLIMATE-CHANGE
FREQUENCY
HISTORY
RUSSIA
LANDSCAPE
WILDFIRE
REGIMES
CANADA
SITE
Кл.слова (ненормированные):
dendrochronology -- fire cycle -- fire history -- fire scar -- forest dynamics -- human influence -- Larix gmelinii -- natural -- permafrost region -- Pinus sylvestris -- Siberia
Аннотация: To study the poorly known fire history of Larix-dominated forest in central Siberia, we collected samples from 200 trees in 46 systematically located study plots. Our study area stretches similar to 90 km from north to south along the River Nizhnyaya Tunguska in northern Irkustk district. Cross-dated tree-ring chronology for all samples combined extended from the year 1360 AD to the present and included 76 fire years and 88 separate fire events. Average fire cycle gradually lengthened from 52 years in the 18th century to 164 years in the 20th century. During the same time, the number of recorded fires decreased even more steeply, i.e. by more than 85%. Fires were more numerous but smaller in the past. Contrary to expectations, climate change in the 20th century has not resulted in increased forest fires in this region. Fire suppression may have contributed to the scarcity of fires since the 1950s. However, a significant decline in fires was evident earlier; therefore an additional explanation is required, a reduction in human-caused ignitions being likely in the light of historical accounts.
WOS,
Scopus
Держатели документа:
[Wallenius, Tuomo
Heikkinen, Juha] Finnish Forest Res Inst, Vantaa Res Unit, FI-01301 Vantaa, Finland
[Larjavaara, Markku] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
[Shibistova, Olga] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Wallenius, T...; Larjavaara, M...; Heikkinen, J...; Shibistova, O...
Spatial patterns of climatic changes in the Eurasian north reflected in Siberian larch tree-ring parameters and stable isotopes
[Text] / O. V. Sidorova [et al.] // Glob. Change Biol. - 2010. - Vol. 16, Is. 3. - P1003-1018, DOI 10.1111/j.1365-2486.2009.02008.x. - Cited References: 50. - This work was supported by Swiss National Science Foundation SNF_200021_121838/1, (PIOI2-119259/1), SCOPES program (No. IB73A0-111134), European Science Foundation BASIN-SIBAE (No. 596) and the grants of RFBR No. 09-05-98015-r_Sibir_a, RFBR No. 09-04-00803a, 07-04-00293-a. The authors thank Mary Gagen and Danny McCarroll from Swansea University, England for providing deltaSUP13/SUPC data from Laanila (Finland) and for their useful advises. This work was conducted in collaboration with the EU-funded Millennium project (017008).
. - 16. - ISSN 1354-1013
РУБ Biodiversity Conservation + Ecology + Environmental Sciences
Аннотация: A spatial description of climatic changes along circumpolar regions is presented based on larch tree-ring width (TRW) index, latewood density (MXD), delta 13C, delta 18O of whole wood and cellulose chronologies from eastern Taimyr (TAY) and north-eastern Yakutia (YAK), Russia, for the period 1900-2006, in comparison with a delta 13C cellulose chronology from Finland (FIN) and a delta 18O ice core record from Greenland (GISP2). Correlation analysis showed a strong positive relationships between TRW, MXD, stable isotope chronologies and June, July air temperatures for TAY and YAK, while the precipitation signal was reflected differently in tree-ring parameters and stable isotope data for the studied sites. Negative correlations were found between July, August precipitation from TAY and stable isotopes and MXD, while May, July precipitations are reflected in MXD and stable isotopes for the YAK. No significant relationships were found between TRW and precipitation for TAY and YAK. The areas of significant correlations between July gridded temperatures and TRW, MXD and stable isotopes show widespread dimension from east to west for YAK and from north to south for TAY. The climate signal is stronger expressed in whole wood than in cellulose for both Siberian regions. The comparison analysis between delta 13C cellulose chronologies from FIN and TAY revealed a similar declining trend over recent decades, which could be explained by the physiological effect of the increasing atmospheric CO(2). TRW, MXD and delta 13C chronologies from TAY and YAK show a negative correlation with North Atlantic Oscillation index, while the delta 18O chronologies show positive correlations, confirming recent warming trend at high latitudes. The strong correlation between GISP2 and delta 18O of cellulose from YAK chronologies reflects the large-scale climatic signal connected by atmospheric circulation patterns expressed by precipitation.
Полный текст,
WOS,
Scopus
Держатели документа:
[Sidorova, Olga V.
Siegwolf, Rolf T. W.
Saurer, Matthias] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[Sidorova, Olga V.
Naurzbaev, Mukhtar M.
Shashkin, Alexander V.
Vaganov, Eugene A.] RAS, VN Sukachev Inst Forest SB, Krasnoyarsk 660036, Russia
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Sidorova, O.V.; Siegwolf, RTW; Saurer, M...; Naurzbaev, M.M.; Shashkin, A.V.; Vaganov, E.A.
Рубрики:
ATLANTIC OSCILLATION
PINUS-SYLVESTRIS
DELTA-C-13
DENSITY
CELLULOSE
GROWTH
WIDTH
RATIOS
SIGNAL
OXYGEN
Кл.слова (ненормированные):
climate change -- delta 13C and delta 18O of wood and cellulose -- Greenland ice core -- late wood density -- North Atlantic Oscillation -- northern Finland -- permafrost -- Siberian north (Russia) -- spatial patterns -- tree-ring width
ATLANTIC OSCILLATION
PINUS-SYLVESTRIS
DELTA-C-13
DENSITY
CELLULOSE
GROWTH
WIDTH
RATIOS
SIGNAL
OXYGEN
Кл.слова (ненормированные):
climate change -- delta 13C and delta 18O of wood and cellulose -- Greenland ice core -- late wood density -- North Atlantic Oscillation -- northern Finland -- permafrost -- Siberian north (Russia) -- spatial patterns -- tree-ring width
Аннотация: A spatial description of climatic changes along circumpolar regions is presented based on larch tree-ring width (TRW) index, latewood density (MXD), delta 13C, delta 18O of whole wood and cellulose chronologies from eastern Taimyr (TAY) and north-eastern Yakutia (YAK), Russia, for the period 1900-2006, in comparison with a delta 13C cellulose chronology from Finland (FIN) and a delta 18O ice core record from Greenland (GISP2). Correlation analysis showed a strong positive relationships between TRW, MXD, stable isotope chronologies and June, July air temperatures for TAY and YAK, while the precipitation signal was reflected differently in tree-ring parameters and stable isotope data for the studied sites. Negative correlations were found between July, August precipitation from TAY and stable isotopes and MXD, while May, July precipitations are reflected in MXD and stable isotopes for the YAK. No significant relationships were found between TRW and precipitation for TAY and YAK. The areas of significant correlations between July gridded temperatures and TRW, MXD and stable isotopes show widespread dimension from east to west for YAK and from north to south for TAY. The climate signal is stronger expressed in whole wood than in cellulose for both Siberian regions. The comparison analysis between delta 13C cellulose chronologies from FIN and TAY revealed a similar declining trend over recent decades, which could be explained by the physiological effect of the increasing atmospheric CO(2). TRW, MXD and delta 13C chronologies from TAY and YAK show a negative correlation with North Atlantic Oscillation index, while the delta 18O chronologies show positive correlations, confirming recent warming trend at high latitudes. The strong correlation between GISP2 and delta 18O of cellulose from YAK chronologies reflects the large-scale climatic signal connected by atmospheric circulation patterns expressed by precipitation.
Полный текст,
WOS,
Scopus
Держатели документа:
[Sidorova, Olga V.
Siegwolf, Rolf T. W.
Saurer, Matthias] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[Sidorova, Olga V.
Naurzbaev, Mukhtar M.
Shashkin, Alexander V.
Vaganov, Eugene A.] RAS, VN Sukachev Inst Forest SB, Krasnoyarsk 660036, Russia
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Sidorova, O.V.; Siegwolf, RTW; Saurer, M...; Naurzbaev, M.M.; Shashkin, A.V.; Vaganov, E.A.
Trends in recent temperature and radial tree growth spanning 2000 years across northwest Eurasia
[Text] / K. R. Briffa [et al.] // Philos. Trans. R. Soc. B-Biol. Sci. - 2008. - Vol. 363, Is. 1501. - P2271-2284, DOI 10.1098/rstb.2007.2199. - Cited References: 42
. - 14. - ISSN 0962-8436
РУБ Biology
Аннотация: This paper describes variability in trends of annual tree growth at several locations in the high latitudes of Eurasia, providing a wide regional comparison over a 2000-year period. The study focuses on the nature of local and widespread tree-growth responses to recent warming seen in instrumental observations, available in northern regions for periods ranging from decades to a century. Instrumental temperature data demonstrate differences in seasonal scale of Eurasian warming and the complexity and spatial diversity of tree-growing-season trends in recent decades. A set of long tree-ring chronologies provides empirical evidence of association between inter-annual tree growth and local, primarily summer, temperature variability at each location. These data show no evidence of a recent breakdown in this association as has been found at other high-latitude Northern Hemisphere locations. Using Kendall's concordance, we quantify the time-dependent relationship between growth trends of the long chronologies as a group. This provides strong evidence that the extent of recent widespread warming across northwest Eurasia, with respect to 100- to 200-year trends, is unprecedented in the last 2000 years. An equivalent analysis of simulated temperatures using the HadCM3 model fails to show a similar increase in concordance expected as a consequence of anthropogenic forcing.
WOS,
Scopus
Держатели документа:
[Briffa, Keith R.
Melvin, Thomas M.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Shishov, Vladimir V.
Naurzbaev, Muktar M.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Dendroecol Dept, Krasnoyarsk 660036, Russia
[Shishov, Vladimir V.] Krasnoyarsk State Trade Econ Inst, IT & Math Modelling Dept, Krasnoyarsk 660075, Russia
[Grudd, Haken] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[Hantemirov, Rashit M.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Lab Dendrochronol, Ekaterinburg 620144, Russia
[Eronen, Matti] Univ Helsinki, Dept Geol, FIN-00014 Helsinki, Finland
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Briffa, K.R.; Shishov, V.V.; Melvin, T.M.; Vaganov, E.A.; Grudd, H...; Hantemirov, R.M.; Eronen, M...; Naurzbaev, M.M.
Рубрики:
SUMMER TEMPERATURES
NORTHERN-HEMISPHERE
RING RECORD
CLIMATE VARIABILITY
FINNISH LAPLAND
PART 2
CHRONOLOGY
SIBERIA
WIDTH
AMPLIFICATION
Кл.слова (ненормированные):
climate change -- Eurasia -- tree-ring chronology -- temperature
SUMMER TEMPERATURES
NORTHERN-HEMISPHERE
RING RECORD
CLIMATE VARIABILITY
FINNISH LAPLAND
PART 2
CHRONOLOGY
SIBERIA
WIDTH
AMPLIFICATION
Кл.слова (ненормированные):
climate change -- Eurasia -- tree-ring chronology -- temperature
Аннотация: This paper describes variability in trends of annual tree growth at several locations in the high latitudes of Eurasia, providing a wide regional comparison over a 2000-year period. The study focuses on the nature of local and widespread tree-growth responses to recent warming seen in instrumental observations, available in northern regions for periods ranging from decades to a century. Instrumental temperature data demonstrate differences in seasonal scale of Eurasian warming and the complexity and spatial diversity of tree-growing-season trends in recent decades. A set of long tree-ring chronologies provides empirical evidence of association between inter-annual tree growth and local, primarily summer, temperature variability at each location. These data show no evidence of a recent breakdown in this association as has been found at other high-latitude Northern Hemisphere locations. Using Kendall's concordance, we quantify the time-dependent relationship between growth trends of the long chronologies as a group. This provides strong evidence that the extent of recent widespread warming across northwest Eurasia, with respect to 100- to 200-year trends, is unprecedented in the last 2000 years. An equivalent analysis of simulated temperatures using the HadCM3 model fails to show a similar increase in concordance expected as a consequence of anthropogenic forcing.
WOS,
Scopus
Держатели документа:
[Briffa, Keith R.
Melvin, Thomas M.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Shishov, Vladimir V.
Naurzbaev, Muktar M.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Dendroecol Dept, Krasnoyarsk 660036, Russia
[Shishov, Vladimir V.] Krasnoyarsk State Trade Econ Inst, IT & Math Modelling Dept, Krasnoyarsk 660075, Russia
[Grudd, Haken] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[Hantemirov, Rashit M.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Lab Dendrochronol, Ekaterinburg 620144, Russia
[Eronen, Matti] Univ Helsinki, Dept Geol, FIN-00014 Helsinki, Finland
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Briffa, K.R.; Shishov, V.V.; Melvin, T.M.; Vaganov, E.A.; Grudd, H...; Hantemirov, R.M.; Eronen, M...; Naurzbaev, M.M.
New ice core evidence for a volcanic cause of the AD 536 dust veil
[Text] / L. B. Larsen [et al.] // Geophys. Res. Lett. - 2008. - Vol. 35, Is. 4. - Ст. L04708, DOI 10.1029/2007GL032450. - Cited References: 36
. - 5. - ISSN 0094-8276
РУБ Geosciences, Multidisciplinary
Аннотация: New and well-dated evidence of sulphate deposits in Greenland and Antarctic ice cores indicate a substantial and extensive atmospheric acidic dust veil at A. D. 533-534 +/- 2 years. This was likely produced by a large explosive, near equatorial volcanic eruption, causing widespread dimming and contributing to the abrupt cooling across much of the Northern Hemisphere known from historical records and tree-ring data to have occurred in A. D. 536. Tree-ring data suggest that this was the most severe and protracted short-term cold episode across the Northern Hemisphere in the last two millennia, even surpassing the severity of the cold period following the Tambora eruption in 1815.
WOS,
Scopus
Держатели документа:
[Larsen, L. B.
Vinther, B. M.
Clausen, H. B.
Siggaard-Andersen, M. -L.
Hammer, C. U.] Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, DK-2100 Copenhagen, Denmark
[Vinther, B. M.
Briffa, K. R.
Melvin, T. M.
Jones, P. D.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Eronen, M.] Univ Helsinki, Dept Geol, FI-00014 Helsinki, Finland
[Grudd, H.
Gunnarson, B. E.] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[Hantemirov, R. M.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Lab Dendrochronol, Ekaterinburg 620144, Russia
[Naurzbaev, M. M.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Dendroecol Dept, Krasnoyarsk 660036, Russia
[Nicolussi, K.] Univ Innsbruck, Inst Geog, A-6020 Innsbruck, Austria
Доп.точки доступа:
Larsen, L.B.; Vinther, B.M.; Briffa, K.R.; Melvin, T.M.; Clausen, H.B.; Jones, P.D.; Siggaard-Andersen, M.L.; Hammer, C.U.; Eronen, M...; Grudd, H...; Gunnarson, B.E.; Hantemirov, R.M.; Naurzbaev, M.M.; Nicolussi, K...
Рубрики:
TREE-RING CHRONOLOGY
CLIMATE VARIABILITY
HOLOCENE
ERUPTIONS
ANTARCTICA
GREENLAND
SIBERIA
RECORDS
LAPLAND
DOME
TREE-RING CHRONOLOGY
CLIMATE VARIABILITY
HOLOCENE
ERUPTIONS
ANTARCTICA
GREENLAND
SIBERIA
RECORDS
LAPLAND
DOME
Аннотация: New and well-dated evidence of sulphate deposits in Greenland and Antarctic ice cores indicate a substantial and extensive atmospheric acidic dust veil at A. D. 533-534 +/- 2 years. This was likely produced by a large explosive, near equatorial volcanic eruption, causing widespread dimming and contributing to the abrupt cooling across much of the Northern Hemisphere known from historical records and tree-ring data to have occurred in A. D. 536. Tree-ring data suggest that this was the most severe and protracted short-term cold episode across the Northern Hemisphere in the last two millennia, even surpassing the severity of the cold period following the Tambora eruption in 1815.
WOS,
Scopus
Держатели документа:
[Larsen, L. B.
Vinther, B. M.
Clausen, H. B.
Siggaard-Andersen, M. -L.
Hammer, C. U.] Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, DK-2100 Copenhagen, Denmark
[Vinther, B. M.
Briffa, K. R.
Melvin, T. M.
Jones, P. D.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Eronen, M.] Univ Helsinki, Dept Geol, FI-00014 Helsinki, Finland
[Grudd, H.
Gunnarson, B. E.] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[Hantemirov, R. M.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Lab Dendrochronol, Ekaterinburg 620144, Russia
[Naurzbaev, M. M.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Dendroecol Dept, Krasnoyarsk 660036, Russia
[Nicolussi, K.] Univ Innsbruck, Inst Geog, A-6020 Innsbruck, Austria
Доп.точки доступа:
Larsen, L.B.; Vinther, B.M.; Briffa, K.R.; Melvin, T.M.; Clausen, H.B.; Jones, P.D.; Siggaard-Andersen, M.L.; Hammer, C.U.; Eronen, M...; Grudd, H...; Gunnarson, B.E.; Hantemirov, R.M.; Naurzbaev, M.M.; Nicolussi, K...
Regional features of the radial growth of larch in North Central Siberia according to millennial Tree-Ring chronologies
[Text] / O. V. Sidorova [et al.] // Russ. J. Ecol. - 2007. - Vol. 38, Is. 2. - P90-93, DOI 10.1134/S106741360702004X. - Cited References: 15
. - 4. - ISSN 1067-4136
РУБ Ecology
Аннотация: A 1138-year tree-ring chronology has been constructed for the region of the Bol'shoi Avam River (the Putoran Plateau). Its comparison with millennial chronologies for the Taimyr Peninsula and Mangazeya has shown that all these chronologies are fairly synchronous with respect to both high-frequency (annual) and low-frequency (long-term) components, although each has its specific regional features. The results of dendroclimatic analysis provide evidence for the prevailing influence of air temperature in July (compared to that in June) on the radial growth of larch in the middle reaches of the Bol'shoi Avam. Consistent long-term changes in radial tree increment (and in summer air temperature) in a large sector of the Subarctic over the past 1000 years have been revealed.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Univ Arizona, Tree Ring Lab, Tucson, AZ USA
Доп.точки доступа:
Sidorova, O.V.; Vaganov, E.A.; Naurzbaev, M.M.; Shishov, V.V.; Hughes, M.K.
Рубрики:
TEMPERATURE VARIABILITY
Кл.слова (ненормированные):
the Bol'shoi Avam River -- radial growth oflarch -- air temperature -- climate change
TEMPERATURE VARIABILITY
Кл.слова (ненормированные):
the Bol'shoi Avam River -- radial growth oflarch -- air temperature -- climate change
Аннотация: A 1138-year tree-ring chronology has been constructed for the region of the Bol'shoi Avam River (the Putoran Plateau). Its comparison with millennial chronologies for the Taimyr Peninsula and Mangazeya has shown that all these chronologies are fairly synchronous with respect to both high-frequency (annual) and low-frequency (long-term) components, although each has its specific regional features. The results of dendroclimatic analysis provide evidence for the prevailing influence of air temperature in July (compared to that in June) on the radial growth of larch in the middle reaches of the Bol'shoi Avam. Consistent long-term changes in radial tree increment (and in summer air temperature) in a large sector of the Subarctic over the past 1000 years have been revealed.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Univ Arizona, Tree Ring Lab, Tucson, AZ USA
Доп.точки доступа:
Sidorova, O.V.; Vaganov, E.A.; Naurzbaev, M.M.; Shishov, V.V.; Hughes, M.K.
The spatiotemporal pattern of fires in northern Taiga larch forests of central Siberia
[Text] / V. I. Kharuk, M. L. Dvinskaya, K. J. Ranson // Russ. J. Ecol. - 2005. - Vol. 36, Is. 5. - P302-311, DOI 10.1007/s11184-005-0077-z. - Cited References: 23
. - 10. - ISSN 1067-4136
РУБ Ecology
Кл.слова (ненормированные):
larch forests -- burned-out areas -- fire periodicity -- permafrost -- climatic trends
Аннотация: The periodicity of fires in larch forests of Evenkia and their relationship with landscape elements have been studied. Cross-sections with "burns" in them caused by past fires have been analyzed in 72 test plots; the fire chronology encompassed the period from the 15th to the 20th century. The between-fire intervals (BFIs) have been calculated by two methods: (1) on the basis of burns alone and (11) on the basis of burns and the start of growth of the new generation of larch after the earliest fire. The BFI depends on local orographic features; it is 86 +/- 11 (105 +/- 12), 61 +/- 8 (73 +/- 8), 139 +/- 17 (138 +/- 18), and 68 +/- 14 (70 +/- 13) years for northeastern slopes, southwestern slopes, bogs, and flatlands, respectively. The mean BFIs calculated by methods I and II are 82 +/- 7 and 95 +/- 7 years, respectively. The permafrost horizon rises at a mean rate of 0.3 cm per year after a forest fire. It has been shown that the number of fires regularly peaks at periods of 36 and 82 years. There is also a temporal trend in fire frequency: the mean BFI was approximately 100 years in the 19th century and 65 years in the 20th century.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.
Кл.слова (ненормированные):
larch forests -- burned-out areas -- fire periodicity -- permafrost -- climatic trends
Аннотация: The periodicity of fires in larch forests of Evenkia and their relationship with landscape elements have been studied. Cross-sections with "burns" in them caused by past fires have been analyzed in 72 test plots; the fire chronology encompassed the period from the 15th to the 20th century. The between-fire intervals (BFIs) have been calculated by two methods: (1) on the basis of burns alone and (11) on the basis of burns and the start of growth of the new generation of larch after the earliest fire. The BFI depends on local orographic features; it is 86 +/- 11 (105 +/- 12), 61 +/- 8 (73 +/- 8), 139 +/- 17 (138 +/- 18), and 68 +/- 14 (70 +/- 13) years for northeastern slopes, southwestern slopes, bogs, and flatlands, respectively. The mean BFIs calculated by methods I and II are 82 +/- 7 and 95 +/- 7 years, respectively. The permafrost horizon rises at a mean rate of 0.3 cm per year after a forest fire. It has been shown that the number of fires regularly peaks at periods of 36 and 82 years. There is also a temporal trend in fire frequency: the mean BFI was approximately 100 years in the 19th century and 65 years in the 20th century.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.
Mixed response of decadal variability in larch tree-ring chronologies from upper tree-lines of the Russian Altai
[Text] / I. P. Panyushkina, D. V. Ovtchinnikov, M. F. Adamenko // Tree-Ring Res. - 2005. - Vol. 61, Is. 1. - P33-42, DOI 10.3959/1536-1098-61.1.33. - Cited References: 23
. - 10. - ISSN 1536-1098
РУБ Forestry
Аннотация: We developed a network of tree-ring width chronologies of larch (Larix sibirica Led.) from upper tree-lines of the southeast Altai Mountains, South Siberia. Annual tree-ring variability of chronologies since A.D. 1710 was compared using factor analysis. The factor analysis clustered eight tree-ring chronologies into two groups that were used for compositing chronologies. One resulting composite chronology (A.D. 1582-1994) averaged sites from upper tree-lines in glacier-free areas and another chronology (A.D. 10901999) captured the sites at upper tree-lines in valleys of the Korumdu, Aktru, Yan-Karasu and Kizil-Tash Glaciers (North-Chuya Range). There is no significant difference in the estimated strength of temperature signals (June and July) of the composite chronologies. However, we observed a remarkable contrast in the decadal variability of larch growth between upper tree-lines of glacier-free areas and glacier valleys. The tree-ring growth of larch was coherent among the chronologies for the period A.D. 1582-1725. Suddenly, low-frequency similarity declined around A.D. 1730. The magnitude of differences became more pronounced after A.D. 1775 indicating three periods with opposite growth tendency (1775-1850, 1900-1915 and 1960-1994) that alternated with short periods of coherent growth. We assume that the low-frequency signal in the glacier valley larch chronology accommodates oscillations of both summer temperature and glacier dynamics. The periods of low-frequency departures are consistent with the 19th Century advance and tremendous 20th Century retreat of the glaciers. We argue that expanded glaciers enhance harmful impacts of katabatic wind on larch growth. It appears that employing tree rings from upper tree-lines of glaciated areas for estimation of decadal and centennial variability climatic proxies should be selected with great caution.
WOS,
Scopus
Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
SB RAS, VN Sukachev Inst Forest, Lab Dentdrochronol, Krasnoyarsk 660048, Russia
Novokusnezk Teacher Training Inst, Novokusnezk 654000, Kemerovoskaya, Russia
Доп.точки доступа:
Panyushkina, I.P.; Ovtchinnikov, D.V.; Adamenko, M.F.
Рубрики:
TEMPERATURE VARIABILITY
SOFIYSKIY GLACIER
MOUNTAINS
SIGNALS
WIDTH
PINE
Кл.слова (ненормированные):
dendrochronology -- larch tree-ring chronology -- Altai Mountains -- Central Asia
TEMPERATURE VARIABILITY
SOFIYSKIY GLACIER
MOUNTAINS
SIGNALS
WIDTH
PINE
Кл.слова (ненормированные):
dendrochronology -- larch tree-ring chronology -- Altai Mountains -- Central Asia
Аннотация: We developed a network of tree-ring width chronologies of larch (Larix sibirica Led.) from upper tree-lines of the southeast Altai Mountains, South Siberia. Annual tree-ring variability of chronologies since A.D. 1710 was compared using factor analysis. The factor analysis clustered eight tree-ring chronologies into two groups that were used for compositing chronologies. One resulting composite chronology (A.D. 1582-1994) averaged sites from upper tree-lines in glacier-free areas and another chronology (A.D. 10901999) captured the sites at upper tree-lines in valleys of the Korumdu, Aktru, Yan-Karasu and Kizil-Tash Glaciers (North-Chuya Range). There is no significant difference in the estimated strength of temperature signals (June and July) of the composite chronologies. However, we observed a remarkable contrast in the decadal variability of larch growth between upper tree-lines of glacier-free areas and glacier valleys. The tree-ring growth of larch was coherent among the chronologies for the period A.D. 1582-1725. Suddenly, low-frequency similarity declined around A.D. 1730. The magnitude of differences became more pronounced after A.D. 1775 indicating three periods with opposite growth tendency (1775-1850, 1900-1915 and 1960-1994) that alternated with short periods of coherent growth. We assume that the low-frequency signal in the glacier valley larch chronology accommodates oscillations of both summer temperature and glacier dynamics. The periods of low-frequency departures are consistent with the 19th Century advance and tremendous 20th Century retreat of the glaciers. We argue that expanded glaciers enhance harmful impacts of katabatic wind on larch growth. It appears that employing tree rings from upper tree-lines of glaciated areas for estimation of decadal and centennial variability climatic proxies should be selected with great caution.
WOS,
Scopus
Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
SB RAS, VN Sukachev Inst Forest, Lab Dentdrochronol, Krasnoyarsk 660048, Russia
Novokusnezk Teacher Training Inst, Novokusnezk 654000, Kemerovoskaya, Russia
Доп.точки доступа:
Panyushkina, I.P.; Ovtchinnikov, D.V.; Adamenko, M.F.
Summer temperatures in eastern Taimyr inferred from a 2427-year late-Holocene tree-ring chronology and earlier floating series
[Text] / M. M. Naurzbaev [et al.] // Holocene. - 2002. - Vol. 12, Is. 6. - P727-736, DOI 10.1191/0959683602hl586rp. - Cited References: 35
. - 10. - ISSN 0959-6836
РУБ Geography, Physical + Geosciences, Multidisciplinary
Аннотация: A brief review is presented of the progress, to date, in constructing a long, continuous ring-width chronology from living and subfossil Siberian larch (Larix gmelinii) in the eastern part of the Taimyr peninsula. A near 2500-year chronology running up to the present has been assembled and several shorter, earlier series have been produced that a-re dated approximately on the basis of radiocarbon dates. A description is given of the production of separate early summer and annual mean temperature histories based on the recent chronology, spanning more than 2000 years. These two reconstructions are based on alternative methods of statistical processing of the measured tree-ring data. The early summer and annual reconstructions agree well in the long-term components of their variability, providing evidence for anomalous warmth in the third, tenth to twelfth, and twentieth centuries. and a prolonged cool period throughout the sixteenth and seventeenth, and in the early nineteenth centuries. The mean growth and other statistical parameters of the earlier chronologies also suggest that conditions for tree growth were very favourable in the earlier Holocene, particularly in the fourth millennium BC. This is strongly indicative of an early Holocene Climatic Optimum in Taimyr at that time. Other material in hand, and earlier published radiocarbon dates, demonstrate the feasibility of constructing continuous ring-width chronologies and temperature estimates extending throughout all of the last 8000 years.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Inst Forest, Krasnoyarsk 660036, Russia
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.; Sidorova, O.V.; Schweingruber, F.H.
Рубрики:
CLIMATE-CHANGE
NORTHERN
MILLENNIUM
Кл.слова (ненормированные):
dendroclimatology -- tree rings -- summer temperature -- subfossil wood -- larch -- Larix gmelinii -- Taimyr -- Northern Siberia -- Holocene
CLIMATE-CHANGE
NORTHERN
MILLENNIUM
Кл.слова (ненормированные):
dendroclimatology -- tree rings -- summer temperature -- subfossil wood -- larch -- Larix gmelinii -- Taimyr -- Northern Siberia -- Holocene
Аннотация: A brief review is presented of the progress, to date, in constructing a long, continuous ring-width chronology from living and subfossil Siberian larch (Larix gmelinii) in the eastern part of the Taimyr peninsula. A near 2500-year chronology running up to the present has been assembled and several shorter, earlier series have been produced that a-re dated approximately on the basis of radiocarbon dates. A description is given of the production of separate early summer and annual mean temperature histories based on the recent chronology, spanning more than 2000 years. These two reconstructions are based on alternative methods of statistical processing of the measured tree-ring data. The early summer and annual reconstructions agree well in the long-term components of their variability, providing evidence for anomalous warmth in the third, tenth to twelfth, and twentieth centuries. and a prolonged cool period throughout the sixteenth and seventeenth, and in the early nineteenth centuries. The mean growth and other statistical parameters of the earlier chronologies also suggest that conditions for tree growth were very favourable in the earlier Holocene, particularly in the fourth millennium BC. This is strongly indicative of an early Holocene Climatic Optimum in Taimyr at that time. Other material in hand, and earlier published radiocarbon dates, demonstrate the feasibility of constructing continuous ring-width chronologies and temperature estimates extending throughout all of the last 8000 years.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Inst Forest, Krasnoyarsk 660036, Russia
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.; Sidorova, O.V.; Schweingruber, F.H.
Variation of early summer and annual temperature in east Taymir and Putoran (Siberia) over the last two millennia inferred from tree rings
[Text] / M. M. Naurzbaev, E. A. Vaganov // J. Geophys. Res.-Atmos. - 2000. - Vol. 105, Is. D6. - P7317-7326, DOI 10.1029/1999JD901059. - Cited References: 40
. - 10. - ISSN 2169-897X
РУБ Meteorology & Atmospheric Sciences
Аннотация: Regional tree ring chronology with extension 2209 years (from 212 B.C. till 1996 A.D.) was built for east Taymir and Putoran according to wood of living trees, well- preserved remains of dead trees, and subfossil wood from alluvial bank deposits by the cross-dating method. In addition, the "floating" tree ring width chronology for the period of Holocene optimum (3300-2600 B.C.) was built with extention 685 years and supported by several radiocarbon dates. High values of synchrony and correlation of individual tree ring series show a prevailing effect of one external factor on radial tree growth change in the studied region of the Siberian subarctic. It was established that the main factors of growth variability are the early summer and annual temperature, which explain up to 70% of tree growth rate variability. Cyclic components stable for two millennia were revealed at analysis of the tree ring chronology: double secular (similar to 180 years), secular (78-90 years), and intrasecular (44, 28, 11, and 6.7-6.9 years) variations. Models for reconstruction of the early summer and annual air temperature were obtained according to tree ring variability. Temperature dynamics in the eastern part of Taymir for the last two millenia agree well with temperature variations in the Northern Hemisphere obtained according to other indirect sources. The warming of the middle of the twentieth century is not extraordinary. The warming at the end of the first and beginning of the second millennia ("Medieval Warm Period") was longer in time and closer in amplitude.
Полный текст,
WOS,
Scopus
Держатели документа:
Taymir Biospher Reserve, Khatanga, Russia
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.
Аннотация: Regional tree ring chronology with extension 2209 years (from 212 B.C. till 1996 A.D.) was built for east Taymir and Putoran according to wood of living trees, well- preserved remains of dead trees, and subfossil wood from alluvial bank deposits by the cross-dating method. In addition, the "floating" tree ring width chronology for the period of Holocene optimum (3300-2600 B.C.) was built with extention 685 years and supported by several radiocarbon dates. High values of synchrony and correlation of individual tree ring series show a prevailing effect of one external factor on radial tree growth change in the studied region of the Siberian subarctic. It was established that the main factors of growth variability are the early summer and annual temperature, which explain up to 70% of tree growth rate variability. Cyclic components stable for two millennia were revealed at analysis of the tree ring chronology: double secular (similar to 180 years), secular (78-90 years), and intrasecular (44, 28, 11, and 6.7-6.9 years) variations. Models for reconstruction of the early summer and annual air temperature were obtained according to tree ring variability. Temperature dynamics in the eastern part of Taymir for the last two millenia agree well with temperature variations in the Northern Hemisphere obtained according to other indirect sources. The warming of the middle of the twentieth century is not extraordinary. The warming at the end of the first and beginning of the second millennia ("Medieval Warm Period") was longer in time and closer in amplitude.
Полный текст,
WOS,
Scopus
Держатели документа:
Taymir Biospher Reserve, Khatanga, Russia
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.
High-resolution reconstruction of climate change in central Asia over the past millennium
/ A. Darin [et al.] // 10th International Multidisciplinary Scientific Geoconference and EXPO - Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2010. - 2010. - Vol. 1: 10th International Multidisciplinary Scientific Geoconference and EXPO, SGEM 2010 (20 June 2010 through 26 June 2010, Varna) Conference code: 101583. - P55-60
. -
Кл.слова (ненормированные):
Geochemical indicators -- Sedimentation -- SRXRF scanning -- Tree-ring width chronology
Аннотация: Reconstruction of climate change in Central Asia over the last millennium with an annual resolution was made using geochemical and biological proxy in lake bottom sediments and tree-ring data. We investigated the lake in Central Asia- Teletskoe (Altai), Kucherla (Altai), Baikal, Arahlei (Chita) - and adjacent areas. Cores of bottom sediments were investigated by method of scanning X-ray fluorescent analysis with synchrotron radiation with the spatial resolution of 0.1 mm. It corresponds to the time resolution ~ 0.2-0.5 year. At each point analyzed more than 30 trace elements from K to U. Geochemical proxy of terrigenous, organogenous and aerosol components of sediments well correlated with regional meteodata for the last 100-150 years. Time series of lithological-geochemical indicators of climate change based on dating by 14C, 137Cs and 210Pb was calibrated by instrumental hydrometeorological data. We used tree-ring series together with element contents as an additional proxy for calculation of transfer function, considering that tree-ring series are response to summer temperature in this climatic zone. Annual temperature and precipitation change for the Central Asia region (0 - 1000 years ago) have been reconstructed using the transfer functions such as: time series proxy=function (temperature, precipitation).
Scopus
Держатели документа:
Institute of geology and mineralogy SB RAS, Novosibirsk, Russian Federation
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Institute of Earth Crust SB RAS, Irkutsk, Russian Federation
Institute of Archeology and Ethnography SB RAS, Novosibirsk, Russian Federation
Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russian Federation
Budker Institute of nuclear physics SB RAS, Novosibirsk, Russian Federation
ИЛ СО РАН
Доп.точки доступа:
Darin, A.; Kalugin, I.; Maksimova, N.; Ovchinnikov, D.; Vologina, E.; Rudaya, N.; Ptitsyn, A.; Reshetova, S.; Rakshun, Y.; Zolotarev, K.
Кл.слова (ненормированные):
Geochemical indicators -- Sedimentation -- SRXRF scanning -- Tree-ring width chronology
Аннотация: Reconstruction of climate change in Central Asia over the last millennium with an annual resolution was made using geochemical and biological proxy in lake bottom sediments and tree-ring data. We investigated the lake in Central Asia- Teletskoe (Altai), Kucherla (Altai), Baikal, Arahlei (Chita) - and adjacent areas. Cores of bottom sediments were investigated by method of scanning X-ray fluorescent analysis with synchrotron radiation with the spatial resolution of 0.1 mm. It corresponds to the time resolution ~ 0.2-0.5 year. At each point analyzed more than 30 trace elements from K to U. Geochemical proxy of terrigenous, organogenous and aerosol components of sediments well correlated with regional meteodata for the last 100-150 years. Time series of lithological-geochemical indicators of climate change based on dating by 14C, 137Cs and 210Pb was calibrated by instrumental hydrometeorological data. We used tree-ring series together with element contents as an additional proxy for calculation of transfer function, considering that tree-ring series are response to summer temperature in this climatic zone. Annual temperature and precipitation change for the Central Asia region (0 - 1000 years ago) have been reconstructed using the transfer functions such as: time series proxy=function (temperature, precipitation).
Scopus
Держатели документа:
Institute of geology and mineralogy SB RAS, Novosibirsk, Russian Federation
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Institute of Earth Crust SB RAS, Irkutsk, Russian Federation
Institute of Archeology and Ethnography SB RAS, Novosibirsk, Russian Federation
Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russian Federation
Budker Institute of nuclear physics SB RAS, Novosibirsk, Russian Federation
ИЛ СО РАН
Доп.точки доступа:
Darin, A.; Kalugin, I.; Maksimova, N.; Ovchinnikov, D.; Vologina, E.; Rudaya, N.; Ptitsyn, A.; Reshetova, S.; Rakshun, Y.; Zolotarev, K.
Palaeoclimate chronology and aridization tendencies in the Transbaikalia for the last 1900 years
/ A. B. Ptitsyn [et al.] // Geography and Natural Resources. - 2010. - Vol. 31, Is. 2. - P144-147, DOI 10.1016/j.gnr.2010.06.009
. - ISSN 1875-3728
Кл.слова (ненормированные):
Bottom sediments -- Geochemistry -- Palaeoclimate -- Palynology -- Reconstruction -- aridity -- humidity -- lacustrine deposit -- paleoclimate -- paleoecology -- paleoenvironment -- palynology -- periodicity -- reconstruction -- sediment chemistry -- Russian Federation -- Transbaikalia
Аннотация: Within the long-term research program on reconstruction of palaeoclimatic characteristics of Central Asia, we carried out a palaeoreconstructions of climate aridity/humidity in the Transbaikalia, based on investigating layered palynological spectra and chemical composition of bottom sediments from Lake Arakhlei. It was found that the humid phases of climate on the time interval 90-2005 used in calculations exhibits a periodicity of 20-45 years, which roughly corresponds to the humidity cycles of Eurasia. В© 2010.
Scopus
Держатели документа:
Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russian Federation
Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russian Federation
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Environmental Change Research Centre, Department of Geography, University College London, United Kingdom
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ptitsyn, A.B.; Reshetova, S.A.; Babich, V.V.; Daryin, A.V.; Kalugin, I.A.; Ovchinnikov, D.V.; Panizzo, V.; Myglan, V.S.
Кл.слова (ненормированные):
Bottom sediments -- Geochemistry -- Palaeoclimate -- Palynology -- Reconstruction -- aridity -- humidity -- lacustrine deposit -- paleoclimate -- paleoecology -- paleoenvironment -- palynology -- periodicity -- reconstruction -- sediment chemistry -- Russian Federation -- Transbaikalia
Аннотация: Within the long-term research program on reconstruction of palaeoclimatic characteristics of Central Asia, we carried out a palaeoreconstructions of climate aridity/humidity in the Transbaikalia, based on investigating layered palynological spectra and chemical composition of bottom sediments from Lake Arakhlei. It was found that the humid phases of climate on the time interval 90-2005 used in calculations exhibits a periodicity of 20-45 years, which roughly corresponds to the humidity cycles of Eurasia. В© 2010.
Scopus
Держатели документа:
Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russian Federation
Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russian Federation
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Environmental Change Research Centre, Department of Geography, University College London, United Kingdom
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ptitsyn, A.B.; Reshetova, S.A.; Babich, V.V.; Daryin, A.V.; Kalugin, I.A.; Ovchinnikov, D.V.; Panizzo, V.; Myglan, V.S.
1929-YEAR TREE-RING CHRONOLOGY FOR THE ALTAI-SAYAN REGION (WESTERN TUVA)
/ V. S. Myglan [et al.] // Archaeology, Ethnology and Anthropology of Eurasia. - 2008. - Vol. 36, Is. 4. - P25-31, DOI 10.1016/j.aeae.2009.03.003
. - ISSN 1563-0110
Аннотация: The current paper presents a new 1929-year tree-ring chronology for the Altai-Sayan region (Western Tuva) based on analyses of wood material from living trees and trunk remains of Siberian larch (Larix sibirica Ldb) from the upper treeline (2400 m asl). The correlations between tree-ring indices and meteorological data suggest that maximum effect on radial growth is produced by temperatures in June and July. This makes it possible to use the resulting chronology for early summer temperature reconstructions in the Altai-Sayan region. In respect to archaeology, a chronology of this length provides the opportunity of dating ancient wood samples, i.e. for exact definition of the calendar dates of the archaeological objects in the relevant territory over the entire period of the chronology. В© 2009.
Scopus
Держатели документа:
Siberian Federal University, Svobodny Pr. 79, Krasnoyarsk, 660041, Russian Federation
Tuvan State University, Lenina 36, Kyzyl, Russian Federation
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Myglan, V.S.; Oidupaa, O.C.; Kirdyanov, A.V.; Vaganov, E.A.
Аннотация: The current paper presents a new 1929-year tree-ring chronology for the Altai-Sayan region (Western Tuva) based on analyses of wood material from living trees and trunk remains of Siberian larch (Larix sibirica Ldb) from the upper treeline (2400 m asl). The correlations between tree-ring indices and meteorological data suggest that maximum effect on radial growth is produced by temperatures in June and July. This makes it possible to use the resulting chronology for early summer temperature reconstructions in the Altai-Sayan region. In respect to archaeology, a chronology of this length provides the opportunity of dating ancient wood samples, i.e. for exact definition of the calendar dates of the archaeological objects in the relevant territory over the entire period of the chronology. В© 2009.
Scopus
Держатели документа:
Siberian Federal University, Svobodny Pr. 79, Krasnoyarsk, 660041, Russian Federation
Tuvan State University, Lenina 36, Kyzyl, Russian Federation
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Myglan, V.S.; Oidupaa, O.C.; Kirdyanov, A.V.; Vaganov, E.A.
Variability of the air temperature in the North of Eurasia inferred from millennial tree-ring chronologies
/ M. M. Naurzbaev, E. A. Vaganov, O. V. Sidorova // Earth's Cryosphere. - 2003. - Vol. 7, Is. 2. - С. 84-91
. - ISSN 1560-7496
Кл.слова (ненормированные):
Climate -- Eurasia -- Reconstruction -- Subarctic -- Tree-ring growth -- air temperature -- climate change -- cooling -- decadal variation -- dendrochronology -- dendroclimatology -- global climate -- Little Ice Age -- long-term change -- paleoclimate -- proxy climate record -- subarctic region -- temperature effect -- tree ring -- warming -- Eurasia -- Europe -- Northern Europe -- Scandinavia -- Siberia -- Urals
Аннотация: An integral estimation of tree-ring growth spatial-temporal conjugation was carried out based on tree-ring chronology network of subarctic zone of Siberia, Ural and Scandinavia for the last 2000 years. Phase and amplitude disagreements of the annual growth and its decadal fluctuation in different subarctic sectors of Eurasia are changed by synchronous fluctuation when century and longer growth cycles are considered. Long-term changes of radial growth indicate common character of global climatic changes in subarctic zone of Eurasia. Medieval warming occurred from 10 to 12 centuries and 15-century warming were changed by Little Ice Age with the cooling culmination taking place in the 17 century. Current warming which started at the beginning of the 19th-century for the moment does not exceed the amplitude of the medieval warming. The tree-ring chronologies do not indicate unusually abrupt temperature rise during the last century, which could be reliably associated with greenhouse gas increasing in the atmosphere of our planet. Modem period is characterized by heterogeneity of warming effect in subarctic regions of Eurasia. Integral tree-ring chronology of the Northern Eurasia shows well agreement with 18O fluctuations in the ice core obtained for Greenland (GISP2). В© M.M. Naurzbaev, E.A. Vaganov, O.V. Sidorova, 2003.
Scopus
Держатели документа:
V.N. Sukachev Institute of Forest, SB RAS, 660036 Krasnoyarsk, Akademgorodok, Russian Federation
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.; Sidorova, O.V.
Кл.слова (ненормированные):
Climate -- Eurasia -- Reconstruction -- Subarctic -- Tree-ring growth -- air temperature -- climate change -- cooling -- decadal variation -- dendrochronology -- dendroclimatology -- global climate -- Little Ice Age -- long-term change -- paleoclimate -- proxy climate record -- subarctic region -- temperature effect -- tree ring -- warming -- Eurasia -- Europe -- Northern Europe -- Scandinavia -- Siberia -- Urals
Аннотация: An integral estimation of tree-ring growth spatial-temporal conjugation was carried out based on tree-ring chronology network of subarctic zone of Siberia, Ural and Scandinavia for the last 2000 years. Phase and amplitude disagreements of the annual growth and its decadal fluctuation in different subarctic sectors of Eurasia are changed by synchronous fluctuation when century and longer growth cycles are considered. Long-term changes of radial growth indicate common character of global climatic changes in subarctic zone of Eurasia. Medieval warming occurred from 10 to 12 centuries and 15-century warming were changed by Little Ice Age with the cooling culmination taking place in the 17 century. Current warming which started at the beginning of the 19th-century for the moment does not exceed the amplitude of the medieval warming. The tree-ring chronologies do not indicate unusually abrupt temperature rise during the last century, which could be reliably associated with greenhouse gas increasing in the atmosphere of our planet. Modem period is characterized by heterogeneity of warming effect in subarctic regions of Eurasia. Integral tree-ring chronology of the Northern Eurasia shows well agreement with 18O fluctuations in the ice core obtained for Greenland (GISP2). В© M.M. Naurzbaev, E.A. Vaganov, O.V. Sidorova, 2003.
Scopus
Держатели документа:
V.N. Sukachev Institute of Forest, SB RAS, 660036 Krasnoyarsk, Akademgorodok, Russian Federation
Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.; Sidorova, O.V.
Reconstruction of summer air temperature in the eastern Taimyr over the last 840 years
/ E. A. Vaganov, I. P. Panyushkina, M. M. Naurzbaev // Russian Journal of Ecology. - 1997. - Vol. 28, Is. 6. - P355-359
. - ISSN 1067-4136
Аннотация: An 840-year reconstruction of average June-July air-temperature deviations was performed using tree-ring chronology of dahurian larch (Larix dahurica). Amplitudes and durations of long-lasting warm and cold periods in Taimyr were analyzed. Reconstructions of summer temperatures in the Taimyr Peninsula and the Polar Urals proved to be in good agreement with the previously reported data on summer temperature dynamics in the northern Hemisphere. В©1997 MAHK Hayka/Interperiodica Publishing.
Scopus
Держатели документа:
Institute of Forests, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Vaganov, E.A.; Panyushkina, I.P.; Naurzbaev, M.M.
Аннотация: An 840-year reconstruction of average June-July air-temperature deviations was performed using tree-ring chronology of dahurian larch (Larix dahurica). Amplitudes and durations of long-lasting warm and cold periods in Taimyr were analyzed. Reconstructions of summer temperatures in the Taimyr Peninsula and the Polar Urals proved to be in good agreement with the previously reported data on summer temperature dynamics in the northern Hemisphere. В©1997 MAHK Hayka/Interperiodica Publishing.
Scopus
Держатели документа:
Institute of Forests, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Vaganov, E.A.; Panyushkina, I.P.; Naurzbaev, M.M.
Increasing relevance of spring temperatures for Norway spruce trees in Davos, Switzerland, after the 1950s
/ O. V. Churakova (Sidorova) [et al.] // Trees Struct. Funct. - 2014. - Vol. 28, Is. 1. - P183-191, DOI 10.1007/s00468-013-0941-6
. - ISSN 0931-1890
Кл.слова (ненормированные):
Climate -- Net ecosystem productivity -- Norway spruce -- Subalpine forest -- Tree-ring width
Аннотация: Key message: Relevance of spring temperatures for tree-ring growth steadily increased since 1950s. Closely linked tree-ring growth and net CO 2 exchange driven by spring temperatures. We investigated long-term (over 100 years) tree-ring width (TRW) variabilities as well as short-term (10 years) variations in net ecosystem productivity (NEP) in response to climate to assess the driving factors for stem growth of Norway spruce in a subalpine forest at Davos in Switzerland. A tree-ring width index (TRWi) chronology for the period from 1750 to 2006 was constructed and linked with climate data from 1876 to 2006, and with NEP available for the period from 1997 to 2006. Based on TRWi, we found that only two out of the 257 years exhibited extreme negative TRWi, compared to 29 years with extreme positive anomalies, observed mainly in recent decades. Annual temperature, annual precipitation, as well as autumn and winter temperature signals were well preserved in the TRWi chronology over the last 130 years. Spring temperatures became increasingly relevant for TRWi, explaining less than 1 % of the variation in TRWi for the period from 1876 to 2006, but 8 % for the period from 1950 to 2006 (p = 0.032), and even 47 % for 1997-2006 (p = 0.028). We also observed a strong positive relationship between annual TRWi and annual NEP (r = 0.661; p = 0.037), both strongly related to spring temperatures (r = 0.687 and r = 0.678 for TRWi and NEP, respectively; p = 0.028; p = 0.032). Moreover, we found strong links between monthly NEP of March and annual TRWi (r = 0.912; p = 0.0001), both related to March temperatures (r = 0.767, p = 0.010 and r = 0.724, p = 0.018, respectively). Thus, under future climate warming, we expect stem growth of these subalpine trees and also ecosystem carbon (C) sequestration to increase, as long as water does not become a limiting factor. © 2013 Springer-Verlag Berlin Heidelberg.
Scopus,
WOS,
Полный текст
Держатели документа:
V. N. Sukachev Institute of Forest SB RAS, 660036 Krasnoyarsk, Russian Federation
Institute of Agricultural Sciences, ETH Zurich, 8092 Zurich, Switzerland
Paul Scherrer Institute, 5232 Villigen, Switzerland
WSL, Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland
Доп.точки доступа:
Churakova (Sidorova), O.V.; Eugster, W.; Zielis, S.; Cherubini, P.; Etzold, S.; Saurer, M.; Siegwolf, R.; Buchmann, N.
Кл.слова (ненормированные):
Climate -- Net ecosystem productivity -- Norway spruce -- Subalpine forest -- Tree-ring width
Аннотация: Key message: Relevance of spring temperatures for tree-ring growth steadily increased since 1950s. Closely linked tree-ring growth and net CO 2 exchange driven by spring temperatures. We investigated long-term (over 100 years) tree-ring width (TRW) variabilities as well as short-term (10 years) variations in net ecosystem productivity (NEP) in response to climate to assess the driving factors for stem growth of Norway spruce in a subalpine forest at Davos in Switzerland. A tree-ring width index (TRWi) chronology for the period from 1750 to 2006 was constructed and linked with climate data from 1876 to 2006, and with NEP available for the period from 1997 to 2006. Based on TRWi, we found that only two out of the 257 years exhibited extreme negative TRWi, compared to 29 years with extreme positive anomalies, observed mainly in recent decades. Annual temperature, annual precipitation, as well as autumn and winter temperature signals were well preserved in the TRWi chronology over the last 130 years. Spring temperatures became increasingly relevant for TRWi, explaining less than 1 % of the variation in TRWi for the period from 1876 to 2006, but 8 % for the period from 1950 to 2006 (p = 0.032), and even 47 % for 1997-2006 (p = 0.028). We also observed a strong positive relationship between annual TRWi and annual NEP (r = 0.661; p = 0.037), both strongly related to spring temperatures (r = 0.687 and r = 0.678 for TRWi and NEP, respectively; p = 0.028; p = 0.032). Moreover, we found strong links between monthly NEP of March and annual TRWi (r = 0.912; p = 0.0001), both related to March temperatures (r = 0.767, p = 0.010 and r = 0.724, p = 0.018, respectively). Thus, under future climate warming, we expect stem growth of these subalpine trees and also ecosystem carbon (C) sequestration to increase, as long as water does not become a limiting factor. © 2013 Springer-Verlag Berlin Heidelberg.
Scopus,
WOS,
Полный текст
Держатели документа:
V. N. Sukachev Institute of Forest SB RAS, 660036 Krasnoyarsk, Russian Federation
Institute of Agricultural Sciences, ETH Zurich, 8092 Zurich, Switzerland
Paul Scherrer Institute, 5232 Villigen, Switzerland
WSL, Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland
Доп.точки доступа:
Churakova (Sidorova), O.V.; Eugster, W.; Zielis, S.; Cherubini, P.; Etzold, S.; Saurer, M.; Siegwolf, R.; Buchmann, N.
Constructing the tree-ring chronology and reconstructing summertime air temperatures in southern Altai for the last 1500 years
/ V. S. Myglan [et al.] // Geogr. Nat. Resour. - 2012. - Vol. 33, Is. 3. - P200-207, DOI 10.1134/S1875372812030031
. - ISSN 1875-3728
Кл.слова (ненормированные):
Altai Republic -- palaeoclimate -- tree-ring chronologies -- upper timberline -- air temperature -- archaeological evidence -- climate variation -- deciduous tree -- dendrochronology -- paleoatmosphere -- paleoclimate -- reconstruction -- summer -- time series -- tree ring -- treeline -- wood -- Altay [Russian Federation] -- Russian Federation -- Larix -- Larix sibirica
Аннотация: We have constructed and analyzed the 1896-year-long tree-ring chronology for the territory of the Altai Republic. The chronology was based on wood of live trees and remains of trunks of Siberian larch (Larix sibirica Ledeb.) from the upper timberline (2300 m) of the Dzhelo river valley. The chronology agrees well with palaeoclimatic data and reflects the main climatic changes in the northern hemisphere for the last two millennia: an extraordinary decrease in increment after the year 536, "mean secular warming", the "Little Ice Age", and current warming. By calculating the response function between the tree-ring chronology for the Dzhelo and data from weather stations, it was possible to reconstruct the series of June-July air temperature variability for the last 1500 years. The chronology can be used in dating archaeological wood, i. e. in determining the calendar time at which archaeological monuments were constructed. В© 2012 Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Altai State University, Barnaul, Russian Federation
Paul Scherrer Institute, Villigen, Switzerland
Доп.точки доступа:
Myglan, V.S.; Zharnikova, O.A.; Malysheva, N.V.; Gerasimova, O.V.; Vaganov, E.A.; Sidorov, O.V.
Кл.слова (ненормированные):
Altai Republic -- palaeoclimate -- tree-ring chronologies -- upper timberline -- air temperature -- archaeological evidence -- climate variation -- deciduous tree -- dendrochronology -- paleoatmosphere -- paleoclimate -- reconstruction -- summer -- time series -- tree ring -- treeline -- wood -- Altay [Russian Federation] -- Russian Federation -- Larix -- Larix sibirica
Аннотация: We have constructed and analyzed the 1896-year-long tree-ring chronology for the territory of the Altai Republic. The chronology was based on wood of live trees and remains of trunks of Siberian larch (Larix sibirica Ledeb.) from the upper timberline (2300 m) of the Dzhelo river valley. The chronology agrees well with palaeoclimatic data and reflects the main climatic changes in the northern hemisphere for the last two millennia: an extraordinary decrease in increment after the year 536, "mean secular warming", the "Little Ice Age", and current warming. By calculating the response function between the tree-ring chronology for the Dzhelo and data from weather stations, it was possible to reconstruct the series of June-July air temperature variability for the last 1500 years. The chronology can be used in dating archaeological wood, i. e. in determining the calendar time at which archaeological monuments were constructed. В© 2012 Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Altai State University, Barnaul, Russian Federation
Paul Scherrer Institute, Villigen, Switzerland
Доп.точки доступа:
Myglan, V.S.; Zharnikova, O.A.; Malysheva, N.V.; Gerasimova, O.V.; Vaganov, E.A.; Sidorov, O.V.