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

[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 0094-8276РУБ 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.

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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...

[Text] / J. Boy [et al.] // Rev. Chil. Hist. Nat. - 2016. - Vol. 89. - Ст. 6, DOI 10.1186/s40693-016-0056-8. - Cited References:53. - We cordially thank the Instituto Antarctico Chileno (INACH-T 28-11) and the Deutsche Forschungsgemeinschaft (DFG, BO 3741-2-1, in the framework of the priority programme SPP 1158 Antarctic Research with comparative investigations in Arctic ice areas) for supporting this research and acknowledge the assistance of the staff at the Prof. Julio Escudero Station at Fildes. We are also grateful to Roger Michael Klatt, Pieter Wiese, Leopold Sauheitl, Joanna Weiss, Norman Gentsch and Christian Weiss for their support with this work. Special Acknwoledgements to Y. Villagra and F. Osorio for the identification of Lichens and Bryophytes species, respectively. We especially thank the reviewers for their appreciated input to the manuscript. . - ISSN 0716-078X. - ISSN 0717-6317РУБ Biodiversity Conservation + Ecology

Аннотация: Background: Maritime Antarctica is severely affected by climate change and accelerating glacier retreat forming temporal gradients of soil development. Successional patterns of soil development and plant succession in the region are largely unknown, as are the feedback mechanisms between both processes. Here we identify three temporal gradients representing horizontal and vertical glacier retreat, as well as formation of raised beaches due to isostatic uplift, and describe soil formation and plant succession along them. Our hypotheses are (i) plants in Antarctica are able to modulate the two base parameters in soil development, organic C content and pH, along the temporal gradients, leading to an increase in organic carbon and soil acidity at relatively short time scales, (ii) the soil development induces succession along these gradients, and (iii) with increasing soil development, bryophytes and Deschampsia antarctica develop mycorrhiza in maritime Antarctica in order to foster interaction with soil. Results: All temporal gradients showed soil development leading to differentiation of soil horizons, carbon accumulation and increasing pH with age. Photoautptroph succession occurred rapidly after glacier retreat, but occurrences of mosses and lichens interacting with soils by rhizoids or rhizines were only observed in the later stages. The community of ground dwelling mosses and lichens is the climax community of soil succession, as the Antarctic hairgrass D. antarctica was restricted to ornithic soils. Neither D. antarctica nor mosses at the best developed soils showed any sign of mycorrhization. Conclusion: Temporal gradients formed by glacier retreat can be identified in maritime Antarctic, where soil development and plant succession of a remarkable pace can be observed, although pseudo-succession occurs by fertilization gradients caused by bird feces. Thus, the majority of ice-free surface in Antarctica is colonized by plant communities which interact with soil by litter input rather than by direct transfer of photoassimilates to soil.

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Держатели документа:
Leibniz Univ Hannover, Inst Soil Sci, Herrenhauser Str 2, D-30419 Hannover, Germany.
Univ Austral Chile, Inst Ciencias Ambientales & Evolut, Valdivia, Chile.
Univ Stirling, Biol & Environm Sci, Stirling FK9 4LA, Scotland.
Univ Halle Wittenberg, Inst Soil Sci, D-06108 Halle, Germany.
VN Sukachev Inst Forest, Krasnoyarsk, Russia.

Доп.точки доступа:
Boy, Jens; Godoy, Roberto; Shibistova, Olga; Boy, Diana; McCulloch, Robert; de la Fuente, Alberto Andrino; Morales, Mauricio Aguirre; Mikutta, Robert; Guggenberger, Georg; Instituto Antarctico Chileno [INACH-T 28-11]; Deutsche Forschungsgemeinschaft (DFG) [BO 3741-2-1]; [SPP 1158]

/ S. V. Prudnikova, S. Y. Evgrafova, T. G. Volova // Chemosphere. - 2021. - Vol. 263. - Ст. 128180, DOI 10.1016/j.chemosphere.2020.128180 . - ISSN 0045-6535
Аннотация: The present study investigates, for the first time, the structure of the microbial community of cryogenic soils in the subarctic region of Siberia and the ability of the soil microbial community to metabolize degradable microbial bioplastic – poly-3-hydroxybutyrate [P(3HB)]. When the soil thawed, with the soil temperature between 5-7 and 9–11 °C, the total biomass of microorganisms at a 10-20-cm depth was 226–234 mg g?1 soil and CO2 production was 20–46 mg g?1 day?1. The total abundance of microscopic fungi varied between (7.4 ± 2.3) ? 103 and (18.3 ± 2.2) ? 103 CFU/g soil depending on temperature; the abundance of bacteria was several orders of magnitude greater: (1.6 ± 0.1) ? 106 CFU g?1 soil. The microbial community in the biofilm formed on the surface of P(3HB) films differed from the background soil in concentrations and composition of microorganisms. The activity of microorganisms caused changes in the surface microstructure of polymer films, a decrease in molecular weight, and an increase in the degree of crystallinity of P(3HB), indicating polymer biodegradation due to metabolic activity of microorganisms. The clear-zone technique – plating of isolates on the mineral agar with polymer as sole carbon source – was used to identify P(3HB)-degrading microorganisms inhabiting cryogenic soil in Evenkia. Analysis of nucleotide sequences of rRNA genes was performed to identify the following P(3HB)-degrading species: Bacillus pumilus, Paraburkholderia sp., Pseudomonas sp., Rhodococcus sp., Stenotrophomonas rhizophila, Streptomyces prunicolor, and Variovorax paradoxus bacteria and the Penicillium thomii, P. arenicola, P. lanosum, Aspergillus fumigatus, and A. niger fungi. © 2020 Elsevier Ltd

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Держатели документа:
Siberian Federal University, 79 Svobodny Pr, Krasnoyarsk, 660041, Russian Federation
V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Melnikov Permafrost Institute, SB RAS, 36 Merzlotnaya St., Yakutsk, 677010, Russian Federation

Доп.точки доступа:
Prudnikova, S. V.; Evgrafova, S. Y.; Volova, T. G.

/ U. Buntgen, S. H. Smith, S. Wagner [et al.] // Clim. Dyn. - 2022, DOI 10.1007/s00382-022-06141-3. - Cited References:96. - Two anonymous referees kindly commented on earlier versions of this manuscript. We are particularly thankful to all producers and contributors of tree-ring data, which were obtained via the ITRDB (https://www.ncei.noaa.gov/products/paleoclima tology/tree-ring), or compiled by Steffen Walz (who was responsible for data collection and preparation during an initial phase of this project). Ulf Buntgen and Jan Esper received support from the SustES projectAdaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions (CZ.02.1.01/0.0/0.0/16_0 19/0000797), and the ERC Advanced project Monostar (AdG 882727). . - Article in press. - ISSN 0930-7575. - ISSN 1432-0894РУБ Meteorology & Atmospheric Sciences

Аннотация: The largest explosive volcanic eruption of the Common Era in terms of estimated sulphur yield to the stratosphere was identified in glaciochemical records 40 years ago, and dates to the mid-thirteenth century. Despite eventual attribution to the Samalas (Rinjani) volcano in Indonesia, the eruption date remains uncertain, and the climate response only partially understood. Seeking a more global perspective on summer surface temperature and hydroclimate change following the eruption, we present an analysis of 249 tree-ring chronologies spanning the thirteenth century and representing all continents except Antarctica. Of the 170 predominantly temperature sensitive high-frequency chronologies, the earliest hints of boreal summer cooling are the growth depressions found at sites in the western US and Canada in 1257 CE. If this response is a result of Samalas, it would be consistent with an eruption window of circa May-July 1257 CE. More widespread summer cooling across the mid-latitudes of North America and Eurasia is pronounced in 1258, while records from Scandinavia and Siberia reveal peak cooling in 1259. In contrast to the marked post-Samalas temperature response at high-elevation sites in the Northern Hemisphere, no strong hydroclimatic anomalies emerge from the 79 precipitation-sensitive chronologies. Although our findings remain spatially biased towards the western US and central Europe, and growth-climate response patterns are not always dominated by a single meteorological factor, this study offers a global proxy framework for the evaluation of paleoclimate model simulations.

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Держатели документа:
Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England.
Czech Acad Sci, Global Change Res Inst CzechGlobe, Brno 60300, Czech Republic.
Masaryk Univ, Fac Sci, Dept Geog, Brno 61137, Czech Republic.
Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland.
Helmholtz Zentrum Hereon, Inst Coastal Syst Anal & Modeling, D-21502 Geesthacht, Germany.
Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden.
Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany.
Stefan Cel Mare Univ Suceava, Fac Forestry, Forest Biometr Lab, Suceava 720229, Romania.
Albert Ludwig Univ Freiburg, Inst Forest Sci, Chair Forest Growth & Dendroecol, Tennenbacherstr 4, D-79106 Freiburg, Germany.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
SB RAS, Fed Res Ctr, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Buntgen, U.; Smith, Sylvie Hodgson; Wagner, Sebastian; Krusic, Paul; Esper, Jan; Piermattei, Alma; Crivellaro, Alan; Reinig, Frederick; Tegel, Willy; Kirdyanov, Alexander; Trnka, Mirek; Oppenheimer, Clive; SustES projectAdaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions [CZ.02.1.01/0.0/0.0/16_0 19/0000797]; ERC Advanced project Monostar [AdG 882727]