Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

: материалы временных коллективов / // Trees. Structure and Function. - 2007. - Т. 21, № 1. - С. 37-44. - Библиогр. в конце ст.
Аннотация: We propose a technique for separating the climatic signal which is contained in two tree-ring parameters widely used in dendroclimatology. The method is based on the removal of the relationship between tree-ring width and maximum latewood density observed for narrow tree rings from high latitudes. The new technique is tested on data from three larch stands located along the northern timberline in Eurasia. The analysis confirms the great importance of summer temperature for tree radial growth and tree -ring formation. These results are consistent with the known dynamics of tree-ring growth in high latitudes and mechanisms of tree-ring growth in high latitudes and mechanisms of tree-ring formation.

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Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28

Доп.точки доступа:
Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Hughes, M.K.; Хугес М.К.; Кирдянов, Александр Викторович
Имеются экземпляры в отделах:
ИФ (18.06.2007г. (1 экз.) - Б.ц.) - свободны 1

/ 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 0277-3791РУБ 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.

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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...

[Text] / A. V. Kirdyanov [et al.] // Chem. Geol. - 2008. - Vol. 252, Is. 01.02.2013. - P31-41, DOI 10.1016/j.chemgeo.2008.01.023. - Cited References: 74 . - 11. - ISSN 0009-2541РУБ Geochemistry & Geophysics

Аннотация: We present the first and longest (413 years) dataset on stable carbon isotope ratios in tree-ring cellulose (delta C-13), tree-ring width (TRW), and maximum latewood density (MXD) obtained from larch trees growing on permafrost under continental climate in the Suntar Khayata mountain ridge in Eastern Siberia (Russia). With this first study we calibrate tree-ring parameters against climate quantities, and based on these results assess the potential added value of MXD and especially of delta C-13 complementing TRW analysis for future climate reconstruction purposes. delta C-13 chronologies were corrected for human induced changes in atmospheric CO2 since AD 1800. Two different approaches were compared i) a correction referring merely to the decline in atmospheric delta C-13 (delta C-13(atm)) and ii) a correction additionally accounting for the increase in atmospheric partial pressure of CO2. delta C-13 chronologies are characterized by strong signal strength with only 4 trees representing the population signal at the site (mean inter-series correlation = 0.71 and EPS = 0.90). delta C-13 variation shows low similarity to TRW and MXD, while correlation between TRW and MXD is highly significant. Correlation analysis of tree-ring parameters with gridded instrumental data (Climate Research Unit, CRU TS 2.1) over the AD 1929-2000 calibration period demonstrates that TRW and MXD react as reported from other sites at cold and humid northern latitudes: precipitation plays no significant role, but strong dependencies on monthly mean, maximum and minimum temperatures, particularly of the current summer (June to August), are found (up to r=0.60, p<0.001). Combining instrumental data to a summer season mean (JJA) and TRW and MXD to a growth parameter mean (TRW+MXD), clearly shows the importance of the number of frost days and minimum temperatures during summer (r=0.67, p <0.001) to dominate tree growth and highlights the potential for climate reconstruction. Carbon isotope fixation in tree rings is obviously less controlled by temperature variables. In particular, the frost days and minimum temperature have a much smaller influence on delta C-13 than on tree growth. delta C-13 strongly reacts to current-year July precipitation (r=-0.44, p<0.05) and June-July maximum temperature (r=0.46, p<0.001). All significant (p<0.05) correlation coefficients are higher when using the corrected delta C-13 chronology considering an additional plant physiological response on increasing atmospheric CO2 concentration, than using the chronology corrected for delta C-13(atm) changes alone. Spatial distribution of correlations between tree-ring data and climate variables for Eastern Siberia indicates that the summer temperature regime in the studied region is mostly influenced by Arctic air masses, but precipitation in July seems to be brought out from the Pacific region. Both the combined TRW+MXD record and the (513 C record revealed a high reconstruction potential for summer temperature and precipitation, respectively, particularly on decadal and longer-term scales. (C) 2008 Elsevier B.V. All rights reserved.

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Держатели документа:
[Kirdyanov, Alexander V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Treydte, Kerstin S.] Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland
[Nikolaev, Anatolli] Melnikov Inst Permafrost SB RAS Yakutsk, Yakutsk, Russia
[Helle, Gerhard
Schleser, Gerhard H.] ICG V, Inst Chem & Dynam Geosphere, Res Ctr Juelich GmbH, Julich, Germany

Доп.точки доступа:
Kirdyanov, A.V.; Treydte, K.S.; Nikolaev, A...; Helle, G...; Schleser, G.H.

[Text] / M. M. Naurzbaev [et al.] // Holocene. - 2002. - Vol. 12, Is. 6. - P727-736, DOI 10.1191/0959683602hl586rp. - Cited References: 35 . - 10. - ISSN 0959-6836РУБ 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.

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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.

[Text] / K. R. Briffa [et al.] // Holocene. - 2002. - Vol. 12, Is. 6. - P759-789, DOI 10.1191/0959683602hl588rp. - Cited References: 33 . - 31. - ISSN 0959-6836РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: Pattern, of summer temperature over the Northern Hemisphere. obtained from a calibration of a tree-ring network, are presented for every year from 1600 to 1877. The network of tree-ring density chronologies is shown to exhibit spatially coherent modes of variability. These modes closely match summer half-year temperature variations, in terms of similar spatial patterns and similar temporal evolution during the instrumental period, They can, therefore. be considered to be proxies for the temperature patterns, and time series for the eight most dominant patterns are presented back to the late seventeenth century. The first pattern represents spatially coherent alarming or cooling and it appears to respond to climate forcings. especially volcanic eruptions. Most other patterns appear to be related to atmospheric pressure anomalies and them can be partially explained by heat advection associated with anomalous atmospheric circulation. This provides the potential for reconstructing past variations in atmospheric circulation for the surinner half-year. To investigate this potential modes of summer-pressure variability are defined. and an attempt is made to reconstruct them using principal components regression. Poor verification statistics and high sensitivity to the design of the regression procedure provide little confidence in the reconstructions presented. which are regarded as being preliminary only. A repeat study using instrumental temperature predictors shoals that the poor performance is attributable mainly to the bleakness of the relationship between air temperature over land and atmospheric circulation during summer: though a relationship exists. it is not strong enough to field reliable regression models when only a relatively short overlap period (55 years in this studs) exists for calibration and verification. Further attempts to reconstruct large-scale atmospheric circulation patterns that include precipitation-sensitive networks of tree-ring data are likely to produce improved results.

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Держатели документа:
Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Russian Acad Sci, Ural Div, Inst Plant & Anim Ecol, Ekaterinburg 620219, Russia
Russian Acad Sci, Siberian Div, Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Briffa, K.R.; Osborn, T.J.; Schweingruber, F.H.; Jones, P.D.; Shiyatov, S.G.; Vaganov, E.A.

[Text] / K. R. Briffa [et al.] // J. Geophys. Res.-Atmos. - 2001. - Vol. 106, Is. D3. - P2929-2941, DOI 10.1029/2000JD900617. - Cited References: 25 . - 13. - ISSN 0747-7309РУБ Meteorology & Atmospheric Sciences

Аннотация: We describe new reconstructions of northern extratropical summer temperatures for nine subcontinental-scale regions and a composite series representing quasi "Northern Hemi sphere" temperature change over the last 600 years. These series are based on tree ring density data that have been processed using a novel statistical technique (age band decomposition) designed to preserve greater long-timescale variability than in previous analyses. We provide time-dependent and timescale-dependent uncertainty estimates for all of the reconstructions. The new regional estimates are generally cooler in almost all precalibration periods, compared to estimates obtained using earlier processing methods, particularly during the 17th century. One exception is the reconstruction for northern Siberia, where 15th century summers are now estimated to be warmer than those observed in the 20th century. In producing a new Northern Hemisphere series we demonstrate the sensitivity of the results to the methodology used once the number of regions with data, and the reliability of each regional series, begins to decrease. We compare our new hemisphere series to other published large-regional temperature histories, most of which lie within the lo confidence band of our estimates over most of the last 600 years. The 20th century is clearly shown by all of the palaeoseries composites to be the warmest during this period.

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Держатели документа:
Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Russian Acad Sci, Inst Plant & Anim Ecol, Ural Branch, Ekaterinburg 620144, Russia
Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Briffa, K.R.; Osborn, T.J.; Schweingruber, F.H.; Harris, I.C.; Jones, P.D.; Shiyatov, S.G.; Vaganov, E.A.

[Text] / K. R. Briffa [et al.] // Philos. Trans. R. Soc. Lond. Ser. B-Biol. Sci. - 1998. - Vol. 353, Is. 1365. - P65-73, DOI 10.1098/rstb.1998.0191. - Cited References: 34 . - 9. - ISSN 0962-8436РУБ Biology

Аннотация: The annual growth of trees, as represented by a variety of ring-width, densitometric, or chemical parameters, represents a combined record of different environmental forcings, one of which is climate. Along with climate, relatively large-scale positive growth influences such as hypothesized 'fertilization' due to increased levels of atmospheric carbon dioxide or various nitrogenous compounds, or possibly deleterious effects of 'acid rain' or increased ultra-violet radiation, might all be expected to exert some influence on recent tree growth rates. Inferring the details of past climate variability from tree-ring data remains a largely empirical exercise, but one that goes hand-in-hand with the development of techniques that seek to identify and isolate the confounding influence of local and larger-scale non-climatic factors. By judicious sampling, and the use of rigorous statistical procedures, dendroclimatology has provided unique insight into the nature of past climate variability, but most significantly at interannual, decadal, and centennial time-scales. Here, examples are shown that illustrate the reconstruction of annually resolved patterns of past summer temperature around the Northern Hemisphere, as well as some more localized reconstructions, but ones which span 1000 years or more. These data provide the means of exploring the possible role of different climate forcings; for example, they provide evidence of the large-scale effects of explosive volcanic eruptions on regional and hemispheric temperatures during the last 400 years. However, a dramatic change in the sensitivity of hemispheric tree-growth to temperature forcing has become apparent during recent decades, and there is additional evidence of major tree-growth (and hence, probably, ecosystem biomass) increases in the northern boreal forests, most clearly over the last century. These possibly anthropogenically related changes in the ecology of tree growth have important implications for modelling future atmospheric CO2 concentrations. Also, where dendroclimatology is concerned to reconstruct longer (increasingly above centennial) temperature histories, such alterations of 'normal' (pre-industrial) tree-growth rates and climate-growth relationships must be accounted for in our attempts to translate the evidence of past tree growth changes.

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Держатели документа:
Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Russian Acad Sci, Inst Plant & Anim Ecol, Ural Branch, Ekaterinburg 620219, Russia
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Stockholm Univ, Nat Geog Inst, S-10691 Stockholm, Sweden

Доп.точки доступа:
Briffa, K.R.; Schweingruber, F.H.; Jones, P.D.; Osborn, T.J.; Harris, I.C.; Shiyatov, S.G.; Vaganov, E.A.; Grudd, H...

/ E. A. Babushkina [et al.] // Geography and Natural Resources. - 2011. - Vol. 32, Is. 1. - P80-86, DOI 10.1134/S1875372811010148 . - ISSN 1875-3728
Аннотация: We report the research results derived from identifying the regional climatic signal contained in the coniferous tree ring-width variability for different topoecological conditions in the forest-steppe of the Republic of Khakassia. It is found that under different growth conditions for trees of the same species the climatic signal undergoes a significant transformation. We demonstrate the possibility of using a combination of tree-ring chronologies of different tree species for an adequate dendroclimatic reconstruction of the leading climatic variables. В© 2011 Pleiades Publishing, Inc.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Babushkina, E.A.; Knorre, A.A.; Vaganov, E.A.; Bryukhanova, M.V.

/ A. V. Kirdyanov [et al.] // Chemical Geology. - 2008. - Vol. 252, Is. 1-2. - P31-41, DOI 10.1016/j.chemgeo.2008.01.023 . - ISSN 0009-2541
Аннотация: We present the first and longest (413 years) dataset on stable carbon isotope ratios in tree-ring cellulose (δ13C), tree-ring width (TRW), and maximum latewood density (MXD) obtained from larch trees growing on permafrost under continental climate in the Suntar Khayata mountain ridge in Eastern Siberia (Russia). With this first study we calibrate tree-ring parameters against climate quantities, and based on these results assess the potential added value of MXD and especially of δ13C complementing TRW analysis for future climate reconstruction purposes. δ13C chronologies were corrected for human induced changes in atmospheric CO2 since AD 1800. Two different approaches were compared i) a correction referring merely to the decline in atmospheric δ13C (δ13Catm) and ii) a correction additionally accounting for the increase in atmospheric partial pressure of CO2. δ13C chronologies are characterized by strong signal strength with only 4 trees representing the population signal at the site (mean inter-series correlation = 0.71 and EPS = 0.90). δ13C variation shows low similarity to TRW and MXD, while correlation between TRW and MXD is highly significant. Correlation analysis of tree-ring parameters with gridded instrumental data (Climate Research Unit, CRU TS 2.1) over the AD 1929-2000 calibration period demonstrates that TRW and MXD react as reported from other sites at cold and humid northern latitudes: precipitation plays no significant role, but strong dependencies on monthly mean, maximum and minimum temperatures, particularly of the current summer (June to August), are found (up to r = 0.60, p < 0.001). Combining instrumental data to a summer season mean (JJA) and TRW and MXD to a growth parameter mean (TRW + MXD), clearly shows the importance of the number of frost days and minimum temperatures during summer (r = 0.67, p < 0.001) to dominate tree growth and highlights the potential for climate reconstruction. Carbon isotope fixation in tree rings is obviously less controlled by temperature variables. In particular, the frost days and minimum temperature have a much smaller influence on δ13C than on tree growth. δ13C strongly reacts to current-year July precipitation (r = - 0.44, p < 0.05) and June-July maximum temperature (r = 0.46, p < 0.001). All significant (p < 0.05) correlation coefficients are higher when using the corrected δ13C chronology considering an additional plant physiological response on increasing atmospheric CO2 concentration, than using the chronology corrected for δ13Catm changes alone. Spatial distribution of correlations between tree-ring data and climate variables for Eastern Siberia indicates that the summer temperature regime in the studied region is mostly influenced by Arctic air masses, but precipitation in July seems to be brought out from the Pacific region. Both the combined TRW + MXD record and the δ13S{cyrillic} record revealed a high reconstruction potential for summer temperature and precipitation, respectively, particularly on decadal and longer-term scales. © 2008 Elsevier B.V. All rights reserved.

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Держатели документа:
V.N.Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Melnikov Institute, Permafrost SB RAS Yakutsk, Russian Federation
Research Centre Juelich GmbH, Institute of Chemistry and Dynamics in Geosphere: ICG-V, Juelich, Germany

Доп.точки доступа:
Kirdyanov, A.V.; Treydte, K.S.; Nikolaev, A.; Helle, G.; Schleser, G.H.

/ M. M. Naurzbaev, E. A. Vaganov, O. V. Sidorova // Earth's Cryosphere. - 2003. - Vol. 7, Is. 2. - С. 84-91 . - ISSN 1560-7496
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.

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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.

/ M. V. Skomarkova [et al.] // Geogr. Nat. Resour. - 2009. - Vol. 30, Is. 2. - P167-172, DOI 10.1016/j.gnr.2009.06.014 . - ISSN 1875-3728
Аннотация: Presented are the dendroclimatic research results on annual growth rings of spruce, fir, pine, birch and aspen growing in the middle taiga subzone of Central Siberia. The study established the general annual growth ring variability patterns for the conifers (spruce and fir) as well as for the hardwoods (birch and aspen), with the correlation coefficients between their chronologies estimated at 0.38 and 0.46 (p < 0.001), respectively. It is shown that under the given conditions the influence of the climatic factors accounts not more than for 53.5% of the variability in radial increment. For pine this influence is less clearly pronounced because of the content of the more mixed (compared with the other species of this territory) climatic signal. It is found that the temperature conditions of June are of first importance for all species under investigation. For birch and aspen the dependence of radial increment on the amount of precipitation in June is explained by moisture depletion at the period of the most active growth. В© 2009.

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Держатели документа:
Institute of Forest SB RAS, Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Max Planck Institute for Biogeochemistry, Max Planck Society, Jena, Germany

Доп.точки доступа:
Skomarkova, M.V.; Vaganov, E.A.; Wirth, C.; Kirdyanov, A.V.

[Text] / E. A. Vaganov, L. G. Vysotskaya, A. V. Shashkin ; ed.: JS Dean, DM Meko, Meko, D // TREE RINGS, ENVIRONMENT AND HUMANITY : RADIOCARBON, 1996. - International Conference on Tree Rings, Environment and Humanity - Relationship and Processes (MAY 17-21, 1994, TUCSON, AZ). - P95-105. - Cited References: 0 . - 11. - ISBN 0-963831-42-9РУБ Ecology + Forestry + Geosciences, Multidisciplinary

Аннотация: We have analyzed the time series of radial cell size variation within tree rings of Siberian latch (Larix sibirica), Siberian spruce (Picea obovata) and Scots pine (Pinus sylvestris) for the period from AD 1890-1990. Trees were chosen at four sites in the north of the Krasnoyarsk region (Russia). Two sites were located near the northern timberline, and the third and fourth 250 and 500 ion directly to the south, respectively. The statistical parameters of the series show that cell sizes can be used as dendrochronological characteristics. The highest agreement and synchronization are shown by cell chronologies obtained for the sites near the timberline. There are century-long trends of cell size increase in cell chronologies for larch and spruce growing on permafrost soils. The cell chronologies for the more southerly sites did not show such century-long trends. Correlation analysis of the series with climatic data indicate that two components, summer temperature and moisture variations, on be extracted from time series of variations of cell size.

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Доп.точки доступа:
Vaganov, E.A.; Vysotskaya, L.G.; Shashkin, A.V.; Dean, JS \ed.\; Meko, DM \ed.\; Meko, D \ed.\

[Text] / U. . Buntgen [et al.] // Holocene. - 2014. - Vol. 24, Is. 5. - P627-630, DOI 10.1177/0959683614523805. - Cited References: 23. - This study is part of the ongoing 'Arctic driftwood' project funded by WSL and the Eva Mayr-Stihl Foundation. The Russian NorthEastern Federal University in Yakutsk and the Russian Foundation for Basic Research (RFBR-12-04-00542), as well as the interdisciplinary projects from SB RAS, provided additional financial and logistical support. UB was supported by the Operational Programme of Education for Competitiveness of Ministry of Education, Youth and Sports of the Czech Republic (project: 'Building Up a Multidisciplinary Scientific Team Focussed on Drought', no. CZ.1.07/2.3.00/20.0248). . - ISSN 0959-6836. - ISSN 1477-0911РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: Today, there are only a handful of millennial-long and annually resolved tree-ring chronologies in existence. Explicit gaps in the global distribution of these regional chronologies together with an overall declining sample size back in time compel a community-wide challenge to discover new tree ring-based climate proxy records. Here, we present evidence for a yet unexplored palaeoenvironmental archive, define allied research tasks and emphasize probable hurdles within and beyond academia, in pursuit of answering this challenge.

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Держатели документа:
[Buentgen, Ulf
Hellmann, Lena] Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland
[Buentgen, Ulf
Hellmann, Lena] Oeschger Ctr Climate Change Res OCCR, Bern, Switzerland
[Buentgen, Ulf] Global Change Res Ctr AS CR, Brno, Czech Republic
[Kirdyanov, Alexander V.] VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Kirdyanov, Alexander V.] Siberian Fed Univ, Krasnoyarsk, Russia
[Nikolaev, Anatoly N.] North Eastern Fed Univ, Yakutsk, Russia
[Nikolaev, Anatoly N.] Melnikov Permafrost Inst, Yakutsk, Russia
[Tegel, Willy] Univ Freiburg, Freiburg, Germany
ИЛ СО РАН

Доп.точки доступа:
Buntgen, U...; Kirdyanov, A.V.; Hellmann, L...; Nikolaev, A.N.; Tegel, W...; WSL; Eva Mayr-Stihl Foundation; Russian NorthEastern Federal University in Yakutsk; Russian Foundation for Basic Research [RFBR-12-04-00542]; SB RAS; Operational Programme of Education for Competitiveness of Ministry of Education, Youth and Sports of the Czech Republic [CZ.1.07/2.3.00/20.0248]

[Text] / J. Esper [et al.] // Quat. Sci. Rev. - 2016. - Vol. 145. - P134-151, DOI 10.1016/j.quascirev.2016.05.009. - Cited References:123. - We thank all the tree-ring data producers for sharing their chronologies and measurement series. Supported by the German Science Foundation, Grant 161/9-1. Lamont-Doherty Earth Observatory contribution number 8019. JL acknowledges the German Science Foundation project "Attribution of forced and internal Chinese climate variability in the Common Era". VM acknowledges grant RNF 15-14-30011. BY acknowledges the National Natural Science Foundation of China (Grant 41325008). . - ISSN 0277-3791РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: Tree-ring chronologies are widely used to reconstruct high-to low-frequency variations in growing season temperatures over centuries to millennia. The relevance of these timeseries in large-scale climate reconstructions is often determined by the strength of their correlation against instrumental temperature data. However, this single criterion ignores several important quantitative and qualitative characteristics of tree-ring chronologies. Those characteristics are (i) data homogeneity, (ii) sample replication, (iii) growth coherence, (iv) chronology development, and (v) climate signal including the correlation with instrumental data. Based on these 5 characteristics, a reconstruction-scoring scheme is proposed and applied to 39 published, millennial-length temperature reconstructions from Asia, Europe, North America, and the Southern Hemisphere. Results reveal no reconstruction scores highest in every category and each has their own strengths and weaknesses. Reconstructions that perform better overall include N-Scan and Finland from Europe, E-Canada from North America, Yamal and Dzhelo from Asia. Reconstructions performing less well include W-Himalaya and Karakorum from Asia, Tatra and S-Finland from Europe, and Great Basin from North America. By providing a comprehensive set of criteria to evaluate tree-ring chronologies we hope to improve the development of large-scale temperature reconstructions spanning the past millennium. All reconstructions and their corresponding scores are provided at www.blogs.uni-mainz.de/fb09climatology. (C) 2016 Elsevier Ltd. All rights reserved.

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Держатели документа:
Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany.
Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden.
Navarino Environm Observ, Messinia, Greece.
Stockholm Univ, Dept Hist, S-10691 Stockholm, Sweden.
Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden.
Univ Giessen, Dept Geog, D-35390 Giessen, Germany.
Univ Giessen, Ctr Int Dev & Environm Res, D-35390 Giessen, Germany.
Univ Padua, Dipartimento Territorio & Sistemi AgroForestali, I-35020 Legnaro, Italy.
Lamont Doherty Earth Observ, Tree Ring Lab, Palisades, NY 10964 USA.
William Paterson Univ, Dept Environm Sci, Wayne, NJ 07470 USA.
RAS, SB, Inst Forest, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Lab Ecosyst Biogeochem, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Humanities, Krasnoyarsk 660041, Russia.
Nat Resources Inst Finland Luke, Rovaniemi Unit, Rovaniemi, Finland.
Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland.
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA.
CONICET Mendoza, Inst Argentino Nivol Glaciol & Ciencias Ambiental, RA-5500 Mendoza, Argentina.
Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China.

Доп.точки доступа:
Esper, Jan; Krusic, Paul J.; Ljungqvist, Fredrik C.; Luterbacher, Juerg; Carrer, Marco; Cook, E.d.; Davi, Nicole K.; Hartl-Meier, Claudia; Kirdyanov, Alexander; Konter, Oliver; Myglan, Vladimir; Timonen, Mauri; Treydte, Kerstin; Trouet, Valerie; Villalba, Ricardo; Yang, Bao; Buntgen, Ulf; German Science Foundation [161/9-1]; National Natural Science Foundation of China [41325008]; [RNF 15-14-30011]

/ J. Bjorklund [et al.] // New Phytol. - 2017. - Vol. 216, Is. 3. - P728-740, DOI 10.1111/nph.14639. - Cited References:59. - This work was mainly funded by the Swiss National Science Foundation (grants iTREE CRSII3_136295 and P300P2_154543). M.V.B. was supported by the Russian Science Foundation (project no. 14-14-00219-p). H.E.C. was supported by the Swiss National Science Foundation (grant no. 160077, CLIMWOOD). P.F. was supported by the Swiss National Science Foundation (grant no. 150205, LOTFOR). G.v.A. was supported by a grant from the Swiss State Secretariat for Education, Research and Innovation SERI (SBFI C14.0104). We thank two anonymous referees for their thoughtful and constructive critiques, and also the numerous researchers who have contributed their tree-ring data to the International Tree-Ring Data Bank, IGBP PAGES/World Data Center for Paleoclimatology, NOAA/ NCDC Paleoclimatology Program; Boulder, Colorado. . - ISSN 0028-646X. - ISSN 1469-8137РУБ Plant Sciences

Аннотация: Interannual variability of wood density - an important plant functional trait and environmental proxy - in conifers is poorly understood. We therefore explored the anatomical basis of density. We hypothesized that earlywood density is determined by tracheid size and latewood density by wall dimensions, reflecting their different functional tasks. To determine general patterns of variability, density parameters from 27 species and 349 sites across the Northern Hemisphere were correlated to tree-ring width parameters and local climate. We performed the same analyses with density and width derived from anatomical data comprising two species and eight sites. The contributions of tracheid size and wall dimensions to density were disentangled with sensitivity analyses. Notably, correlations between density and width shifted from negative to positive moving from earlywood to latewood. Temperature responses of density varied intraseasonally in strength and sign. The sensitivity analyses revealed tracheid size as the main determinant of earlywood density, while wall dimensions become more influential for latewood density. Our novel approach of integrating detailed anatomical data with large-scale tree-ring data allowed us to contribute to an improved understanding of interannual variations of conifer growth and to illustrate how conifers balance investments in the competing xylem functions of hydraulics and mechanical support.

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Swiss Fed Inst Forest Snow & Landscape Res WSL, Zuercherstr 111, CH-8903 Birmensdorf, Switzerland.
Univ Gothenburg, Dept Earth Sci, Gothenburg Univ, Lab Dendrochronol, Guldhedsgatan 5a, S-40530 Gothenburg, Sweden.
Catholic Univ Louvain, Georges Lemaitre Ctr Earth & Climate Res, Earth & Life Inst, Pl Louis Pasteur, B-1348 Louvain La Neuve, Belgium.
Inst Environm Sci, Climat Change & Climate Impacts, 66 Blvd Carl Vogt, CH-1205 Geneva, Switzerland.
VN Sukachev Inst Forest SB RAS, Akad Gorodok 50,Bld 28, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny Pr 79, Krasnoyarsk 660041, Russia.
Univ Padua, Dept TeSAF, Via Univ 16, I-35020 Legnaro, PD, Italy.
Univ Arizona, Tree Ring Res Lab, 1215 E Lowell St, Tucson, AZ 85721 USA.

Доп.точки доступа:
Bjorklund, Jesper; Seftigen, Kristina; Schweingruber, Fritz; Fonti, Patrick; von Arx, Georg; Bryukhanova, Marina V.; Cuny, Henri E.; Carrer, Marco; Castagneri, Daniele; Frank, David C.; von, Georg; Swiss National Science Foundation [iTREE CRSII3_136295, P300P2_154543]; Russian Science Foundation [14-14-00219-p]; Swiss National Science Foundation (CLIMWOOD) [160077]; Swiss National Science Foundation (LOTFOR) [150205]; Swiss State Secretariat for Education, Research and Innovation SERI [SBFI C14.0104]

/ F. C. Ljungqvist, A. Piermattei, A. Seim [et al.] // Quat. Sci. Rev. - 2020. - Vol. 230. - Ст. 106074, DOI 10.1016/j.quascirev.2019.106074 . - ISSN 0277-3791
Аннотация: To place recent hydroclimate changes, including drought occurrences, in a long-term historical context, tree-ring records serve as an important natural archive. Here, we evaluate 46 millennium-long tree-ring based hydroclimate reconstructions for their Data Homogeneity, Sample Replication, Growth Coherence, Chronology Development, and Climate Signal based on criteria published by Esper et al. (2016) to assess tree-ring based temperature reconstructions. The compilation of 46 individually calibrated site reconstructions includes 37 different tree species and stem from North America (n = 29), Asia (n = 10); Europe (n = 5), northern Africa (n = 1) and southern South America (n = 1). For each criterion, the individual reconstructions were ranked in four groups, and results showed that no reconstruction scores highest or lowest for all analyzed parameters. We find no geographical differences in the overall ranking, but reconstructions from arid and semi-arid environments tend to score highest. A strong and stable hydroclimate signal is found to be of greater importance than a long calibration period. The most challenging trade-off identified is between high continuous sample replications, as well as a well-mixed age class distribution over time, and a good internal growth coherence. Unlike temperature reconstructions, a high proportion of the hydroclimate reconstructions are produced using individual series detrending methods removing centennial-scale variability. By providing a quantitative and objective evaluation of all available tree-ring based hydroclimate reconstructions we hope to boost future improvements in the development of such records and provide practical guidance to secondary users of these reconstructions. © 2019 The Authors

Scopus

Держатели документа:
Department of History, Stockholm University, Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
Swedish Collegium for Advanced Study, Uppsala, Sweden
Department of Geography, University of Cambridge, Cambridge, United Kingdom
Chair of Forest Growth, Institute of Forest Sciences, Albert Ludwig University of Freiburg, Freiburg, Germany
Department of Physical Geography, Stockholm University, Stockholm, Sweden
Dendro Sciences Group, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
CzechGlobe Global Change Research Institute CAS, Brno, Czech Republic
Department of Geography, Faculty of Science, Masaryk University, Brno, Czech Republic
Center for Ecological Forecasting and Global Change, College of Forestry, Northwest Agriculture and Forestry University, Yangling, China
Sukachev Institute of Forest SB RAS, Krasnoyarsk, Akademgorodok, Russian Federation
Institute of Ecology and Geography, Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Geography, Climatology, Climate Dynamics and Climate Change, Justus Liebig University, Giessen, Germany
Centre for International Development and Environmental Research, Justus Liebig University, Giessen, Germany
Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
Georges Lemaitre Centre for Earth and Climate Research, Universite Catholique de Louvain, Louvain-la-Neuve, Belgium
Department of Geosciences, University of Arkansas, Fayetteville, United States
Instituto Argentino de Nivologia, Glaciologia y Ciencias Ambientales IANIGLA, CCT-CONICET-Mendoza, Mendoza, Argentina
Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Department of Geography, Johannes Gutenberg University, Mainz, Germany

Доп.точки доступа:
Ljungqvist, F. C.; Piermattei, A.; Seim, A.; Krusic, P. J.; Buntgen, U.; He, M.; Kirdyanov, A. V.; Luterbacher, J.; Schneider, L.; Seftigen, K.; Stahle, D. W.; Villalba, R.; Yang, B.; Esper, J.

/ F. C. Ljungqvist, A. Piermattei, A. Seim [et al.] // Quat. Sci. Rev. - 2020. - Vol. 230. - Ст. 106074, DOI 10.1016/j.quascirev.2019.106074. - Cited References:225. - We are grateful to all colleagues for sharing and providing their tree-ring chronologies and measurement series. F.C.L. was supported by the Swedish Research Council (Vetenskapsradet, grant 2018-01272), A.S. by the German Research Foundation (Deutsche Forschungsgemeinschaft, SE 2802/1-1), U.B by the Czech Republic Grant Agency project no. 17-22102S, M.H. by the Alexander von Humboldt Foundation, J.L., L.S. and B.Y. by the Belmont Forum and JPI-Climate, Collaborative Research Action "INTEGRATE: An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes" (BMBF grant 01LP1612A; NERC grant NE/P006809/1; NSFC grant 41661144008), K.S. by FORMAS (grant 2014-723) and the Swiss National Science Foundation SNSF (project XELLCLIM no. 200021-182398), I.E. by the German Research Foundation (Deutsche Forschungsgemeinschaft, grants Inst 247/665-1 FUGG and ES 161/9-1). F.C.L. acknowledges a longer stay as Visiting Scholar at the Department of Geography, University of Cambridge, allowing time and inspiration to pursue this study. All reconstructions, with the data in the public domain, and their corresponding scores are provided at www.blogs.uni-mainz.de/fb09climatology. . - ISSN 0277-3791РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: To place recent hydroclimate changes, including drought occurrences, in a long-term historical context, tree-ring records serve as an important natural archive. Here, we evaluate 46 millennium-long tree-ring based hydroclimate reconstructions for their Data Homogeneity, Sample Replication, Growth Coherence, Chronology Development, and Climate Signal based on criteria published by Esper et al. (2016) to assess tree-ring based temperature reconstructions. The compilation of 46 individually calibrated site reconstructions includes 37 different tree species and stem from North America (n = 29), Asia (n = 10); Europe (n = 5), northern Africa (n = 1) and southern South America (n = 1). For each criterion, the individual reconstructions were ranked in four groups, and results showed that no reconstruction scores highest or lowest for all analyzed parameters. We find no geographical differences in the overall ranking, but reconstructions from arid and semi-arid environments tend to score highest. A strong and stable hydroclimate signal is found to be of greater importance than a long calibration period. The most challenging trade-off identified is between high continuous sample replications, as well as a well-mixed age class distribution over time, and a good internal growth coherence. Unlike temperature reconstructions, a high proportion of the hydroclimate reconstructions are produced using individual series detrending methods removing centennial-scale variability. By providing a quantitative and objective evaluation of all available tree-ring based hydroclimate reconstructions we hope to boost future improvements in the development of such records and provide practical guidance to secondary users of these reconstructions. (C) 2019 The Authors. Published by Elsevier Ltd.

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Держатели документа:
Stockholm Univ, Dept Hist, SE-10691 Stockholm, Sweden.
Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden.
Swedish Collegium Adv Study, Uppsala, Sweden.
Univ Cambridge, Dept Geog, Cambridge, England.
Albert Ludwig Univ Freiburg, Inst Forest Sci, Chair Forest Growth, Freiburg, Germany.
Stockholm Univ, Dept Phys Geog, Stockholm, Sweden.
Swiss Fed Res Inst WSL, Dendro Sci Grp, Birmensdorf, Switzerland.
CAS, CzechGlobe Global Change Res Inst, Brno, Czech Republic.
Masaryk Univ, Fac Sci, Dept Geog, Brno, Czech Republic.
Northwest Agr & Forestry Univ, Coll Forestry, Ctr Ecol Forecasting & Global Change, Yangling, Shaanxi, Peoples R China.
RAS, SB, Sukachev Inst Forest, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk, Russia.
Justus Liebig Univ, Dept Geog Climatol Climate Dynam & Climate Change, Giessen, Germany.
Justus Liebig Univ, Ctr Int Dev & Environm Res, Giessen, Germany.
Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden.
Catholic Univ Louvain, Georges Lemaitre Ctr Earth & Climate Res, Louvain La Neuve, Belgium.
Univ Arkansas, Dept Geosci, Fayetteville, AR 72701 USA.
CONICET Mendoza, CCT, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Mendoza, Argentina.
Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Peoples R China.
Johannes Gutenberg Univ Mainz, Dept Geog, Mainz, Germany.

Доп.точки доступа:
Ljungqvist, Fredrik Charpentier; Piermattei, Alma; Seim, Andrea; Krusic, Paul J.; Buntgen, Ulf; He, Minhui; Kirdyanov, Alexander V.; Luterbacher, Juerg; Schneider, Lea; Seftigen, Kristina; Stahle, David W.; Villalba, Ricardo; Yang, Bao; Esper, Jan; Swedish Research Council (Vetenskapsradet)Swedish Research Council [2018-01272]; German Research Foundation (Deutsche Forschungsgemeinschaft)German Research Foundation (DFG) [ES 161/9-1, SE 2802/1-1, Inst 247/665-1 FUGG]; Czech Republic Grant AgencyGrant Agency of the Czech Republic [17-22102S]; Alexander von Humboldt FoundationAlexander von Humboldt Foundation; Belmont Forum and JPI-Climate, Collaborative Research Action "INTEGRATE: An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes" (BMBF)Federal Ministry of Education & Research (BMBF) [01LP1612A]; Belmont Forum and JPI-Climate, Collaborative Research Action "INTEGRATE: An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes" (NERC) [NE/P006809/1]; Belmont Forum and JPI-Climate, Collaborative Research Action "INTEGRATE: An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes" (NSFC)National Natural Science Foundation of China [41661144008]; FORMASSwedish Research Council Formas [2014-723]; Swiss National Science Foundation SNSF (project XELLCLIM)Swiss National Science Foundation (SNSF) [200021-182398]

/ A. V. Kirdyanov, P. J. Krusic, V. V. Shishov [et al.] // Ecol. Lett. - 2020, DOI 10.1111/ele.13611. - Cited References:89. - As part of the ERC project MONOSTAR (AdG 882727), the study received further supported by the Russian Science Foundation (project #18-14-00072) and the 'SustES-Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions' (CZ.02.1.01/0.0/0.0/16_019/0000797). The USDA Forest Service supported K.T. Smith, V.V.S. received funding from the Russian Ministry of Science and Higher Education (projects #FSRZ-2020-0010 and #FSRZ-2020-0014), and E.A.V. was supported by the Russian Science Foundation (project #19-77-30015). We thank A. Schmidt and J. Keeble for their attempts at extracting surface flux data from a range of state-of-the-art models. J. Sardans and an anonymous referee kindly commented on earlier versions of this manuscript. . - Article in press. - ISSN 1461-023X. - ISSN 1461-0248РУБ Ecology

Аннотация: Although the effect of pollution on forest health and decline received much attention in the 1980s, it has not been considered to explain the 'Divergence Problem' in dendroclimatology; a decoupling of tree growth from rising air temperatures since the 1970s. Here we use physical and biogeochemical measurements of hundreds of living and dead conifers to reconstruct the impact of heavy industrialisation around Norilsk in northern Siberia. Moreover, we develop a forward model with surface irradiance forcing to quantify long-distance effects of anthropogenic emissions on the functioning and productivity of Siberia's taiga. Downwind from the world's most polluted Arctic region, tree mortality rates of up to 100% have destroyed 24,000 km(2)boreal forest since the 1960s, coincident with dramatic increases in atmospheric sulphur, copper, and nickel concentrations. In addition to regional ecosystem devastation, we demonstrate how 'Arctic Dimming' can explain the circumpolar 'Divergence Problem', and discuss implications on the terrestrial carbon cycle.

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Держатели документа:
Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England.
RAS, VN Sukachev Inst Forest SB, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden.
Siberian Fed Univ, Math Methods & IT Dept, Krasnoyarsk 660075, Russia.
Siberian Fed Univ, Rectorate, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Humanities, Krasnoyarsk 660041, Russia.
Univ Exeter, Ctr Geog & Environm Sci, Penryn TR10 9FE, England.
Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany.
State Nat Reserve Stolby, Krasnoyarsk 660006, Russia.
RAS, Inst Plant & Anim Ecol, Ural Branch, Ekaterinburg 620144, Russia.
US Forest Serv, Durham, NH 08324 USA.
Inst Atmosphere Climate Sci, CH-8092 Zurich, Switzerland.
Helmholtz Ctr Geesthacht, Inst Coastal Res, D-21502 Geesthacht, Germany.
Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland.
Global Change Res Ctr, Brno 60300, Czech Republic.
Masaryk Univ, Fac Sci, Dept Geog, Brno 61300, Czech Republic.

Доп.точки доступа:
Kirdyanov, Alexander V.; Krusic, Paul J.; Shishov, Vladimir V.; Vaganov, Eugene A.; Fertikov, Alexey I.; Myglan, Vladimir S.; Barinov, Valentin V.; Browse, J.o.; Esper, Jan; Ilyin, Viktor A.; Knorre, Anastasia A.; Korets, Mikhail A.; Kukarskikh, Vladimir V.; Mashukov, Dmitry A.; Onuchin, Alexander A.; Piermattei, Alma; Pimenov, Alexander V.; Prokushkin, Anatoly S.; Ryzhkova, Vera A.; Shishikin, Alexander S.; Smith, Kevin T.; Taynik, Anna V.; Wild, Martin; Zorita, Eduardo; Buntgen, U.; Shishov, Vladimir; ERC project MONOSTAR [AdG 882727]; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30015, 18-14-00072]; SustES-Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions [CZ.02.1.01/0.0/0.0/16_019/0000797]; Russian Ministry of Science and Higher Education [FSRZ-2020-0010, FSRZ-2020-0014]; USDA Forest ServiceUnited States Department of Agriculture (USDA)United States Forest Service

/ U. Buntgen, D. Arseneault, E. Boucher [et al.] // Dendrochronologia. - 2020. - Vol. 64. - Ст. 125757, DOI 10.1016/j.dendro.2020.125757 . - ISSN 1125-7865
Аннотация: Climate reconstructions for the Common Era are compromised by the paucity of annually-resolved and absolutely-dated proxy records prior to medieval times. Where reconstructions are based on combinations of different climate archive types (of varying spatiotemporal resolution, dating uncertainty, record length and predictive skill), it is challenging to estimate past amplitude ranges, disentangle the relative roles of natural and anthropogenic forcing, or probe deeper interrelationships between climate variability and human history. Here, we compile and analyse updated versions of all the existing summer temperature sensitive tree-ring width chronologies from the Northern Hemisphere that span the entire Common Era. We apply a novel ensemble approach to reconstruct extra-tropical summer temperatures from 1 to 2010 CE, and calculate uncertainties at continental to hemispheric scales. Peak warming in the 280s, 990s and 1020s, when volcanic forcing was low, was comparable to modern conditions until 2010 CE. The lowest June–August temperature anomaly in 536 not only marks the beginning of the coldest decade, but also defines the onset of the Late Antique Little Ice Age (LALIA). While prolonged warmth during Roman and medieval times roughly coincides with the tendency towards societal prosperity across much of the North Atlantic/European sector and East Asia, major episodes of volcanically-forced summer cooling often presaged widespread famines, plague outbreaks and political upheavals. Our study reveals a larger amplitude of spatially synchronized summer temperature variation during the first millennium of the Common Era than previously recognised. © 2020 Elsevier GmbH

Scopus

Держатели документа:
Department of Geography, University of Cambridge, Cambridge, CB2 3EN, United Kingdom
Swiss Federal Research Institute (WSL), Birmensdorf, 8903, Switzerland
Global Change Research Centre (CzechGlobe), Brno, 603 00, Czech Republic
Department of Geography, Faculty of Science, Masaryk University, Brno, 613 00, Czech Republic
Department of Biology, Chemistry and Geography, University of Quebec, Rimouski, QC G5L 3A1, Canada
Department of Geography, University of Quebec, Montreal, H2X 3R9, Canada
Institute of Ecology and Geography, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Humanities, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Forest Research Institute, University of Quebec in Abitibi-Temiscamingue, Amos, J9T 2L8, Canada
Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States
Sukachev Institute of Forest SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Geography, Justus Liebig University, Giessen, 35390, Germany
Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden
Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, 40530, Sweden
Department of History, Stockholm University, Stockholm, 10691, Sweden
Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden
Swedish Collegium for Advanced Study, Uppsala, 15238, Sweden
Potsdam Institute for Climate Impact Research (PIK), Potsdam, 14473, Germany
Initiative for the Science of the Human Past at Harvard, Department of History, Harvard University, Cambridge, MA 02138, United States
Max Planck–Harvard Research Centre for Archaeoscience of the Ancient Mediterranean, Harvard University, Cambridge, MA 02138, United States
Department of Geography, University of Innsbruck, Innsbruck, 6020, Austria
Department of Geography, Johannes Gutenberg University, Mainz, 55099, Germany
Climate and Environmental Physics (CEP), Physics Institute & Oeschger Centre for Climate Change Research (OCCR), University of Bern, Bern, 3012, Switzerland

Доп.точки доступа:
Buntgen, U.; Arseneault, D.; Boucher, E.; Churakova (Sidorova), O. V.; Gennaretti, F.; Crivellaro, A.; Hughes, M. K.; Kirdyanov, A. V.; Klippel, L.; Krusic, P. J.; Linderholm, H. W.; Ljungqvist, F. C.; Ludescher, J.; McCormick, M.; Myglan, V. S.; Nicolussi, K.; Piermattei, A.; Oppenheimer, C.; Reinig, F.; Sigl, M.; Vaganov, E. A.; Esper, J.

/ U. Buntgen, D. Arseneault, E. Boucher [et al.] // Dendrochronologia. - 2020. - Vol. 64. - Ст. 125757, DOI 10.1016/j.dendro.2020.125757. - Cited References:87. - We are thankful to everyone who made the raw tree-ring data available. Bruce Campbell, Nicola Di Cosmo, Rashit Hantemirov, Joe McConnell, Raphael Neukom, Rob Wilson, and two anonymous referees kindly commented on earlier versions of the manuscript. U.B. received funding from SustES -Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions (CZ.02.1.01/0.0/0.0/16_019/0000797). F.C.L. was supported by the Swedish Research Council (grant no 2018-01272). J.L. thanks for the support by the East Africa Peru India Climate Capacities (EPICC) project. M. McC. acknowledges support from the Initiative for the Science of the Human Past at Harvard (SoHP). This project is part of the International Climate Initiative (IKI). The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) supports this initiative on the basis of a decision adopted by the German Bundestag. A.V.K. received funding from the Russian Science Foundation (grant 18-1400072). M.S. acknowledges funding from the ERC under the European Union's Horizon 2020 research and innovation programme (grant agreement No 820047). D.A and E.B acknowledge support from the National Sciences and Engineering Research Council"(NSERC), and E.A. V. was supported by the Russian Science Foundation (No 19-77-30015). . - ISSN 1125-7865. - ISSN 1612-0051РУБ Forestry + Geography, Physical

Аннотация: Climate reconstructions for the Common Era are compromised by the paucity of annually-resolved and absolutely-dated proxy records prior to medieval times. Where reconstructions are based on combinations of different climate archive types (of varying spatiotemporal resolution, dating uncertainty, record length and predictive skill), it is challenging to estimate past amplitude ranges, disentangle the relative roles of natural and anthropogenic forcing, or probe deeper interrelationships between climate variability and human history. Here, we compile and analyse updated versions of all the existing summer temperature sensitive tree-ring width chronologies from the Northern Hemisphere that span the entire Common Era. We apply a novel ensemble approach to reconstruct extra-tropical summer temperatures from 1 to 2010 CE, and calculate uncertainties at continental to hemispheric scales. Peak warming in the 280s, 990s and 1020s, when volcanic forcing was low, was comparable to modern conditions until 2010 CE. The lowest June-August temperature anomaly in 536 not only marks the beginning of the coldest decade, but also defines the onset of the Late Antique Little Ice Age (LALIA). While prolonged warmth during Roman and medieval times roughly coincides with the tendency towards societal prosperity across much of the North Atlantic/European sector and East Asia, major episodes of volcanically-forced summer cooling often presaged widespread famines, plague outbreaks and political upheavals. Our study reveals a larger amplitude of spatially synchronized summer temperature variation during the first millennium of the Common Era than previously recognised.

WOS

Держатели документа:
Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England.
Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland.
Global Change Res Ctr CzechGlobe, Brno 60300, Czech Republic.
Masaryk Univ, Dept Geog, Fac Sci, Brno 61300, Czech Republic.
Univ Quebec, Dept Biol Chem & Geog, Rimouski, PQ G5L 3A1, Canada.
Univ Quebec, Dept Geog, Montreal, PQ H2X 3R9, Canada.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Humanities, Krasnoyarsk 660041, Russia.
Univ Quebec Abitibi Temiscamingue, Forest Res Inst, Amos, PQ J9T 2L8, Canada.
Univ Arizona, Lab Tree Ring Res, Tucson, AZ 85721 USA.
Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia.
Justus Liebig Univ, Dept Geog, D-35390 Giessen, Germany.
Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden.
Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, S-40530 Gothenburg, Sweden.
Stockholm Univ, Dept Hist, S-10691 Stockholm, Sweden.
Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden.
Swedish Coll Adv Study, S-15238 Uppsala, Sweden.
Potsdam Inst Climate Impact Res PIK, D-14473 Potsdam, Germany.
Harvard Univ, Dept Hist, Initiat Sci Human Past Harvard, Cambridge, MA 02138 USA.
Harvard Univ, Max Planck Harvard Res Ctr Archaeosci Ancient Med, Cambridge, MA 02138 USA.
Univ Innsbruck, Dept Geog, A-6020 Innsbruck, Austria.
Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany.
Univ Bern, Climate & Environm Phys CEP, Phys Inst, CH-3012 Bern, Switzerland.
Univ Bern, Oeschger Ctr Climate Change Res OCCR, CH-3012 Bern, Switzerland.

Доп.точки доступа:
Buntgen, U.; Arseneault, Dominique; Boucher, Etienne; Churakova, O. V.; Gennaretti, Fabio; Crivellaro, Alan; Hughes, Malcolm K.; Kirdyanov, Alexander V.; Kippel, Lara; Krusic, Paul J.; Linderholm, Hans W.; Ljungqvist, Fredrik C.; Ludescher, Josef; McCormick, Michael; Myglan, Vladimir S.; Nicolussi, Kurt; Piermattei, Alma; Oppenheimer, Clive; Reinig, Frederick; Sigl, Michael; Vaganov, Eugene A.; Esper, Jan; SustES -Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions [CZ.02.1.01/0.0/0.0/16_019/0000797]; Swedish Research CouncilSwedish Research Council [2018-01272]; East Africa Peru India Climate Capacities (EPICC) project; Initiative for the Science of the Human Past at Harvard (SoHP); Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU); Russian Science FoundationRussian Science Foundation (RSF) [18-1400072, 19-77-30015]; ERC under the European Union's Horizon 2020 research and innovation programme [820047]; National Sciences and Engineering Research Council"(NSERC)Natural Sciences and Engineering Research Council of Canada