Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene

Pollen analysis was carried out on an 80-cm sedimentary section on the shore of Lake Tere-Khol (southeastern Tuva). The section consists of peat overlapping lake loams and covers the last 2800 years. The alternation of dry-wet and cold-warm epochs has been established, and changes in heat and moistu...

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Published in:GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
Main Authors: Olga Borisova K., Andrei Panin V.
Other Authors: This study contributes to the Russian Academy of Sciences Fundamental Research Program, State Task 0148-2019-0005 and to the Russian Foundation for Basic Research Project 19-05-00863.
Format: Article in Journal/Newspaper
Language:English
Published: Russian Geographical Society 2019
Subjects:
Late Holocene
short-term climate changes
Little Ice Age
Medieval Warm Period
pollen analysis
south-eastern Tuva
Greenland
Tuva
Siberia
Online Access:https://ges.rgo.ru/jour/article/view/743
https://doi.org/10.24057/2071-9388-2018-64
id ftjges:oai:oai.gesj.elpub.ru:article/743
record_format openpolar
institution Open Polar
collection Geography, Environment, Sustainability (E-Journal)
op_collection_id ftjges
language English
topic Late Holocene
short-term climate changes
Little Ice Age
Medieval Warm Period
pollen analysis
south-eastern Tuva
spellingShingle Late Holocene
short-term climate changes
Little Ice Age
Medieval Warm Period
pollen analysis
south-eastern Tuva
Olga Borisova K.
Andrei Panin V.
Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
topic_facet Late Holocene
short-term climate changes
Little Ice Age
Medieval Warm Period
pollen analysis
south-eastern Tuva
description Pollen analysis was carried out on an 80-cm sedimentary section on the shore of Lake Tere-Khol (southeastern Tuva). The section consists of peat overlapping lake loams and covers the last 2800 years. The alternation of dry-wet and cold-warm epochs has been established, and changes in heat and moisture occurred non-simultaneously. The first half of the studied interval, from 2.8 to 1.35 kyr BP was relatively arid and warmer on average. Against this background, temperature fluctuations occurred: relatively cold intervals 2.8–2.6 and 2.05–1.7 kyr BP and relatively warm 2.6-2.05 and 1.7-1.35 kyr BP. The next time interval 1.35-0.7 kyr BP was relatively humid. Against this background, the temperatures varied from cold 1.35-1.1 kyr BP to relatively warm 1.1–0.7 kyr BP. The last 700 years have been relatively cold with a short warming from 400 to 250 years ago. This period included a relatively dry interval 700–400 years ago and more humid climate in the last 400 years. The established climate variability largely corresponds to other climate reconstructions in the Altai-Sayan region. The general cooling trend corresponds to an astronomically determined trend towards a decrease in solar radiation in temperate latitudes of the Northern Hemisphere, and the centennial temperature fluctuations detected against this background correspond well to changes in solar activity reconstructed from 14C production and the concentration of cosmogenic isotopes in Greenland ice. Against the general tendency towards aridization, alternating wet and dry phases correspond well to changes in the activity of the Asian monsoon, established by the oxygen-isotope composition of speleothems in South China.
author2 This study contributes to the Russian Academy of Sciences Fundamental Research Program, State Task 0148-2019-0005 and to the Russian Foundation for Basic Research Project 19-05-00863.
format Article in Journal/Newspaper
author Olga Borisova K.
Andrei Panin V.
author_facet Olga Borisova K.
Andrei Panin V.
author_sort Olga Borisova K.
title Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
title_short Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
title_full Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
title_fullStr Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
title_full_unstemmed Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene
title_sort multicentennial climatic changes in the tere-khol basin, southern siberia, during the late holocene
publisher Russian Geographical Society
publishDate 2019
url https://ges.rgo.ru/jour/article/view/743
https://doi.org/10.24057/2071-9388-2018-64
long_lat ENVELOPE(12.506,12.506,65.215,65.215)
geographic Greenland
Tuva
geographic_facet Greenland
Tuva
genre Greenland
Siberia
genre_facet Greenland
Siberia
op_source GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY; Vol 12, No 2 (2019); 148-161
2542-1565
2071-9388
op_relation https://ges.rgo.ru/jour/article/view/743/377
Agatova A.R., Nazarov A.N., Nepop R.K., and Rodnight H. (2012). Holocene glacier fluctuations and climate changes in the southeastern part of the Russian Altai (South Siberia) based on a radiocarbon chronology. Quaternary Science Reviews 43, 74–93.
Bezrukova E.V., Belov A.V., Letunova P.P., and Kulagina N.V. (2014). The response of the environment of the Angara-Lena Plateau to global climate change in the Holocene. Russian Geology and Geophysics 55 (4) pp. 463–471.
Bezrukova E.V., Letunova P.P., Kulagina N.V., Sharova O.G. (2013). Environment and landscape’s reconstruction of the Priolkhon region based on the data of lacustrine sediments. Evraziya v Kainozoe. Stratigrafiya, Paleoekologiya, Kul’tury, vol. 2, pp. 19–25 (in Russian).
Bezrukova E.V., Schetnikov A.A., Kuzmin M.I., Sharova O.G., Kulagina N.V., Letunova P.P., Ivanov E.V., Krainov M.A., Kerber E.V., Filinov I.A., and Levina O.V. (2016). First data on changes in the environment and climate of the zhombolok volcanic district (Eastern Sayan) in the middle-late Holocene. Doklady Akademii nauk 468 (3), pp. 323–327 (in Russian).
Blyakharchuk T.A. (2008). Reconstructing the vegetation of forest and alpine-steppe landscapes in the southwestern part of Tuva since the Late Glacial period till the present. Geography and Natural Resources 29 (1), pp. 57–62.
Blyakharchuk T.A., Wright H.E., Borodavko P.S., van der Knaap W.O., and Ammann B. (2004). Late-glacial and Holocene vegetational changes on the Ulagan high-mountain plateau, Altai Mountains, southern Siberia. Palaeogeography, Palaeoclimatology, Palaeoecology 209, pp. 259–279.
Blyakharchuk T.A., Wright H.E., Borodavko P.S., van der Knaap W.O., and Ammann B. (2007). Late Glacial and Holocene vegetational history of the Altai Mountains (southwestern Tuva Republic, Siberia). Palaeogeography, Palaeoclimatology, Palaeoecology 245, pp. 518–534.
Blyakharchuk T.A. and Chernova N.A. (2013). Vegetation and climate in the Western Sayan Mts, according to pollen data from Lugovoe Mire as a background for prehistoric cultural change in southern Middle Siberia. Quaternary Science Reviews 75, pp. 22–42.
Bolykhovskaya N.S. and Panin A.V. (2008). Dynamics of the vegetation cover in the Tere-Khol depression (southeastern Tuva) in the second half of the Holocene. Palynology: Stratigraphy and geoecology. Proceedings xII All-Russian Palynological Conference, Sept. 29 – Oct. 4, 2008, St. Petersburg, vol. II. VNIGRI, St. Petersburg, pp. 69-75 (in Russian).
Bond G., Kromer B., Beer J., Muscheler R., Evans M., Showers W., Hoffmann S., Lotti-Bond R., Hajdas I., and Bonani G. (2001). Persistent solar influence on North Atlantic climate during the Holocene. Science 294, pp. 2130–2136.
Bronk Ramsey C. (2017). Methods for summarizing radiocarbon datasets. Radiocarbon 59 (2), pp.1809–1833.
Dirksen V.G., van Geel B., Koulkova M.A., zaitseva G.I., Sementsov A.A., Scott E.M., Cook G.T., van der Plicht J., Lebedeva L.M., Bourova N.D., and Bokovenko N.A. (2007). Chronology of Holocene climate and vegetation changes and their connection to cultural dynamics in Southern Siberia. Radiocarbon 49 (2), pp.1103–1121.
Grichuk M.P. (1960). General features of the history of nature of the middle part of the Yenisei and Ob basins and their significance for the Quaternary sediment stratigraphy. In: Materialy po istorii Krasnoyarskogo kraya. Gosgeoltekhizdat, Moscow, pp. 57–64 (in Russian).
Grichuk V.P. (1940). Method of treatment of the sediments poor in organic remains for the pollen analysis). Problemy Fizicheskoi Geografii 8, pp. 53–58 (in Russian).
Ilyashuk B.P. and Ilyashuk E.A. 2007. Chironomid record of Late Quaternary climatic and environmental changes from two sites in Central Asia ( Tuva Republic, Russia) – local, regional or global causes? Quaternary Science Reviews 26, pp. 705–731.
Khotinski N.A. (1977). Holocene of North Eurasia. Nauka, Moscow (in Russian). Koropachinski I.Yu. (1975). Dendroflora of the Altai-Sayan mountain region. Nauka SO, Novosibirsk (in Russian).
Mann M.E. and Jones P.D. (2003). Global surface temperatures over the past two millennia, Geophysical Research Letters 30 (15), 1820.
Marcott S.A., Shakun J.D., Clark P.U., and Mix A.C. (2013). A Reconstruction of Regional and Global Temperature for the Past 11,300 Years. Science 339, pp. 1198-1201.
Mayewski P.A., Rohling E.E., Stager J.C., Karlén W., Maasch K.A., Meeker L.D., Meyerson E.A., Gasse F., van Kreveld S., Holmgren K., Lee-Thorp J., Rosqvist G., Rack F., Staubwasser M., Schneider R.R., and Steig E.J. (2004). Holocene climate variability. Quaternary Research 62 (3), pp. 243–255.
Moberg A., Sonechkin D.M., Holmgren K., Datsenko N.M., and Karlén W. (2005). Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data. Nature 433, pp. 613–617.
Panin A.V., Bronnikova M.A., Uspenskaya O.N., Arzhantseva I.A., Konstantinov E.A., Koshurnikov A.V., Selezneva E.V., Fuzeina Y.N., and Sheremetskaya E.D. (2012). Doklady Earth Sciences 446 (2), pp. 1204–1210.
Reimer P.J., Bard E., Bayliss A., Beck J.W., Blackwell P.G., Bronk Ramsey C., Buck C.E., Cheng H., Edwards R.L., Friedrich M., Grootes P.M., Guilderson T.P., Haflidason H., Hajdas I., Hatté C., Heaton T.J., Hoffmann D.L., Hogg A.G., Hughen K.A., Kaiser K.F., Kromer B., Manning S.W., Niu M., Reimer R.W., Richards D.A., Scott E.M., Southon J.R., Staff R.A., Turney C.S.M., and van der Plicht J. (2013). IntCal13 and Marine13 radiocarbon age calibration curves 0-50,000 years cal BP. Radiocarbon 55, 1869–1887.
Reshetova S.A., Ptitsyn A.B., Bezrukova E.V., Panizzo V., Henderson E., Daryin A.V., and Kalugin I.A. (2013). Vegetation of Central Transbaikalia in the Late Glacial and Holocene. Geografiya i Prirodnye Resursy 34 (2), pp. 172–178 (in Russian).
Rudaya N., Tarasov P., Dorofeyuk N., Solovieva N., Kalugin I., Andreev A., Daryin A., Diekmann B., Riedel F., Tserendash N., and Wagner M. (2009). Holocene environments and climate in the Mongolian Altai reconstructed from the Hoton-Nur pollen and diatom records: a step towards better understanding climate dynamics in Central Asia. Quaternary Science Reviews 28, pp. 540–554.
Rudaya N., Nazarova L., Novenko E., Andreev A., Kalugin I., Daryin A., Babich V., Li H.-C., and Shilov P. (2016). Quantitative reconstructions of mid- to late Holocene climate and vegetation in the northeastern Altai Mountains recorded in lake Teletskoye. Global and Planetary Change 141, pp. 12–24.
Sharova O.G., Bezrukova E.V., Letunova P.P., Kulagina N.V., Schetnikov A.A., Filinov I.A., Ivanov E.V., and Levina O.V. (2015). Vegetation and Climate of the Tankhoi Foothill Plain (Lake Baikal Southern Shore) over the Late Glacial and Holocene. Izvestiya Irkutskogo Gosudarstvennogo Universiteta. Seriya: Geoarkheologiya. Etnologiya. Antropologiya 11, pp. 86–102 (in Russian).
Sobolevskaya K.A. (1950). The vegetation of Tuva. AN SSSR Publ., Novosibirsk, 139 pp. (in Russian).
Sokolov S.Ya., Svyazeva O.A., and Kubli V.A. (1977). Distribution of trees and shrubs of the USSR, vol. 1. Nauka, Leningrad (in Russian).
Tarasov P., Dorofeyuk N., and Metel’tseva E. (2000). Holocene vegetation and climate changes in Hoton-Nur basin, northwest Mongolia. Boreas 29 (2), pp. 117–126.
Tchebakova N.M., Blyakharchuk T.A., and Parfenova E.I. (2009). Reconstruction and prediction of climate and vegetation change in the Holocene in the Altai-Sayan mountains, Central Asia. Environmental Research Letters 4 (4), 045025.
Wang Y., Cheng H., Edwards R.L., He Y., Kong x., An z., Wu J., Kelly M.J., Dykoski C.A., and Li x. (2005). The Holocene Asian monsoon: links to solar changes and North Atlantic climate. Science 308, pp. 854–857.
Wanner H., Beer J., Bütikofer J., Crowley T.J., Cubasch U., Flückiger J., Goosse H., Grosjean M., Joos F., Kaplan J.O., Küttel M., Müller S.A., Prentice I.C., Solomina O., Stocker T.F., Tarasov P., Wagner M., and Widmann M. (2008). Mid- to Late Holocene climate change: an overview. Quaternary Science Reviews 27 (19-20), pp. 1791–1828.
https://ges.rgo.ru/jour/article/view/743
doi:10.24057/2071-9388-2018-64
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spelling ftjges:oai:oai.gesj.elpub.ru:article/743 2023-05-15T16:29:57+02:00 Multicentennial Climatic Changes In The Tere-Khol Basin, Southern Siberia, During The Late Holocene Olga Borisova K. Andrei Panin V. This study contributes to the Russian Academy of Sciences Fundamental Research Program, State Task 0148-2019-0005 and to the Russian Foundation for Basic Research Project 19-05-00863. 2019-07-05 application/pdf https://ges.rgo.ru/jour/article/view/743 https://doi.org/10.24057/2071-9388-2018-64 eng eng Russian Geographical Society https://ges.rgo.ru/jour/article/view/743/377 Agatova A.R., Nazarov A.N., Nepop R.K., and Rodnight H. (2012). Holocene glacier fluctuations and climate changes in the southeastern part of the Russian Altai (South Siberia) based on a radiocarbon chronology. Quaternary Science Reviews 43, 74–93. Bezrukova E.V., Belov A.V., Letunova P.P., and Kulagina N.V. (2014). The response of the environment of the Angara-Lena Plateau to global climate change in the Holocene. Russian Geology and Geophysics 55 (4) pp. 463–471. Bezrukova E.V., Letunova P.P., Kulagina N.V., Sharova O.G. (2013). Environment and landscape’s reconstruction of the Priolkhon region based on the data of lacustrine sediments. Evraziya v Kainozoe. Stratigrafiya, Paleoekologiya, Kul’tury, vol. 2, pp. 19–25 (in Russian). Bezrukova E.V., Schetnikov A.A., Kuzmin M.I., Sharova O.G., Kulagina N.V., Letunova P.P., Ivanov E.V., Krainov M.A., Kerber E.V., Filinov I.A., and Levina O.V. (2016). First data on changes in the environment and climate of the zhombolok volcanic district (Eastern Sayan) in the middle-late Holocene. Doklady Akademii nauk 468 (3), pp. 323–327 (in Russian). Blyakharchuk T.A. (2008). Reconstructing the vegetation of forest and alpine-steppe landscapes in the southwestern part of Tuva since the Late Glacial period till the present. Geography and Natural Resources 29 (1), pp. 57–62. Blyakharchuk T.A., Wright H.E., Borodavko P.S., van der Knaap W.O., and Ammann B. (2004). Late-glacial and Holocene vegetational changes on the Ulagan high-mountain plateau, Altai Mountains, southern Siberia. Palaeogeography, Palaeoclimatology, Palaeoecology 209, pp. 259–279. Blyakharchuk T.A., Wright H.E., Borodavko P.S., van der Knaap W.O., and Ammann B. (2007). Late Glacial and Holocene vegetational history of the Altai Mountains (southwestern Tuva Republic, Siberia). Palaeogeography, Palaeoclimatology, Palaeoecology 245, pp. 518–534. Blyakharchuk T.A. and Chernova N.A. (2013). Vegetation and climate in the Western Sayan Mts, according to pollen data from Lugovoe Mire as a background for prehistoric cultural change in southern Middle Siberia. Quaternary Science Reviews 75, pp. 22–42. Bolykhovskaya N.S. and Panin A.V. (2008). Dynamics of the vegetation cover in the Tere-Khol depression (southeastern Tuva) in the second half of the Holocene. Palynology: Stratigraphy and geoecology. Proceedings xII All-Russian Palynological Conference, Sept. 29 – Oct. 4, 2008, St. Petersburg, vol. II. VNIGRI, St. Petersburg, pp. 69-75 (in Russian). Bond G., Kromer B., Beer J., Muscheler R., Evans M., Showers W., Hoffmann S., Lotti-Bond R., Hajdas I., and Bonani G. (2001). Persistent solar influence on North Atlantic climate during the Holocene. Science 294, pp. 2130–2136. Bronk Ramsey C. (2017). Methods for summarizing radiocarbon datasets. Radiocarbon 59 (2), pp.1809–1833. Dirksen V.G., van Geel B., Koulkova M.A., zaitseva G.I., Sementsov A.A., Scott E.M., Cook G.T., van der Plicht J., Lebedeva L.M., Bourova N.D., and Bokovenko N.A. (2007). Chronology of Holocene climate and vegetation changes and their connection to cultural dynamics in Southern Siberia. Radiocarbon 49 (2), pp.1103–1121. Grichuk M.P. (1960). General features of the history of nature of the middle part of the Yenisei and Ob basins and their significance for the Quaternary sediment stratigraphy. In: Materialy po istorii Krasnoyarskogo kraya. Gosgeoltekhizdat, Moscow, pp. 57–64 (in Russian). Grichuk V.P. (1940). Method of treatment of the sediments poor in organic remains for the pollen analysis). Problemy Fizicheskoi Geografii 8, pp. 53–58 (in Russian). Ilyashuk B.P. and Ilyashuk E.A. 2007. Chironomid record of Late Quaternary climatic and environmental changes from two sites in Central Asia ( Tuva Republic, Russia) – local, regional or global causes? Quaternary Science Reviews 26, pp. 705–731. Khotinski N.A. (1977). Holocene of North Eurasia. Nauka, Moscow (in Russian). Koropachinski I.Yu. (1975). Dendroflora of the Altai-Sayan mountain region. Nauka SO, Novosibirsk (in Russian). Mann M.E. and Jones P.D. (2003). Global surface temperatures over the past two millennia, Geophysical Research Letters 30 (15), 1820. Marcott S.A., Shakun J.D., Clark P.U., and Mix A.C. (2013). A Reconstruction of Regional and Global Temperature for the Past 11,300 Years. Science 339, pp. 1198-1201. Mayewski P.A., Rohling E.E., Stager J.C., Karlén W., Maasch K.A., Meeker L.D., Meyerson E.A., Gasse F., van Kreveld S., Holmgren K., Lee-Thorp J., Rosqvist G., Rack F., Staubwasser M., Schneider R.R., and Steig E.J. (2004). Holocene climate variability. Quaternary Research 62 (3), pp. 243–255. Moberg A., Sonechkin D.M., Holmgren K., Datsenko N.M., and Karlén W. (2005). Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data. Nature 433, pp. 613–617. Panin A.V., Bronnikova M.A., Uspenskaya O.N., Arzhantseva I.A., Konstantinov E.A., Koshurnikov A.V., Selezneva E.V., Fuzeina Y.N., and Sheremetskaya E.D. (2012). Doklady Earth Sciences 446 (2), pp. 1204–1210. Reimer P.J., Bard E., Bayliss A., Beck J.W., Blackwell P.G., Bronk Ramsey C., Buck C.E., Cheng H., Edwards R.L., Friedrich M., Grootes P.M., Guilderson T.P., Haflidason H., Hajdas I., Hatté C., Heaton T.J., Hoffmann D.L., Hogg A.G., Hughen K.A., Kaiser K.F., Kromer B., Manning S.W., Niu M., Reimer R.W., Richards D.A., Scott E.M., Southon J.R., Staff R.A., Turney C.S.M., and van der Plicht J. (2013). IntCal13 and Marine13 radiocarbon age calibration curves 0-50,000 years cal BP. Radiocarbon 55, 1869–1887. Reshetova S.A., Ptitsyn A.B., Bezrukova E.V., Panizzo V., Henderson E., Daryin A.V., and Kalugin I.A. (2013). Vegetation of Central Transbaikalia in the Late Glacial and Holocene. Geografiya i Prirodnye Resursy 34 (2), pp. 172–178 (in Russian). Rudaya N., Tarasov P., Dorofeyuk N., Solovieva N., Kalugin I., Andreev A., Daryin A., Diekmann B., Riedel F., Tserendash N., and Wagner M. (2009). Holocene environments and climate in the Mongolian Altai reconstructed from the Hoton-Nur pollen and diatom records: a step towards better understanding climate dynamics in Central Asia. Quaternary Science Reviews 28, pp. 540–554. Rudaya N., Nazarova L., Novenko E., Andreev A., Kalugin I., Daryin A., Babich V., Li H.-C., and Shilov P. (2016). Quantitative reconstructions of mid- to late Holocene climate and vegetation in the northeastern Altai Mountains recorded in lake Teletskoye. Global and Planetary Change 141, pp. 12–24. Sharova O.G., Bezrukova E.V., Letunova P.P., Kulagina N.V., Schetnikov A.A., Filinov I.A., Ivanov E.V., and Levina O.V. (2015). Vegetation and Climate of the Tankhoi Foothill Plain (Lake Baikal Southern Shore) over the Late Glacial and Holocene. Izvestiya Irkutskogo Gosudarstvennogo Universiteta. Seriya: Geoarkheologiya. Etnologiya. Antropologiya 11, pp. 86–102 (in Russian). Sobolevskaya K.A. (1950). The vegetation of Tuva. AN SSSR Publ., Novosibirsk, 139 pp. (in Russian). Sokolov S.Ya., Svyazeva O.A., and Kubli V.A. (1977). Distribution of trees and shrubs of the USSR, vol. 1. Nauka, Leningrad (in Russian). Tarasov P., Dorofeyuk N., and Metel’tseva E. (2000). Holocene vegetation and climate changes in Hoton-Nur basin, northwest Mongolia. Boreas 29 (2), pp. 117–126. Tchebakova N.M., Blyakharchuk T.A., and Parfenova E.I. (2009). Reconstruction and prediction of climate and vegetation change in the Holocene in the Altai-Sayan mountains, Central Asia. Environmental Research Letters 4 (4), 045025. Wang Y., Cheng H., Edwards R.L., He Y., Kong x., An z., Wu J., Kelly M.J., Dykoski C.A., and Li x. (2005). The Holocene Asian monsoon: links to solar changes and North Atlantic climate. Science 308, pp. 854–857. Wanner H., Beer J., Bütikofer J., Crowley T.J., Cubasch U., Flückiger J., Goosse H., Grosjean M., Joos F., Kaplan J.O., Küttel M., Müller S.A., Prentice I.C., Solomina O., Stocker T.F., Tarasov P., Wagner M., and Widmann M. (2008). Mid- to Late Holocene climate change: an overview. Quaternary Science Reviews 27 (19-20), pp. 1791–1828. https://ges.rgo.ru/jour/article/view/743 doi:10.24057/2071-9388-2018-64 Authors who publish with this journal agree to the following terms:Authors retain copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).The information and opinions presented in the Journal reflect the views of the authors and not of the Journal or its Editorial Board or the Publisher. The GES Journal has used its best endeavors to ensure that the information is correct and current at the time of publication but takes no responsibility for any error, omission, or defect therein. Авторы, публикующие в данном журнале, соглашаются со следующим:Авторы сохраняют за собой авторские права на работу и предоставляют журналу право первой публикации работы на условиях лицензии Creative Commons Attribution License, которая позволяет другим распространять данную работу с обязательным сохранением ссылок на авторов оригинальной работы и оригинальную публикацию в этом журнале.Авторы сохраняют право заключать отдельные контрактные договорённости, касающиеся не-эксклюзивного распространения версии работы в опубликованном здесь виде (например, размещение ее в институтском хранилище, публикацию в книге), со ссылкой на ее оригинальную публикацию в этом журнале.Авторы имеют право размещать их работу CC-BY GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY; Vol 12, No 2 (2019); 148-161 2542-1565 2071-9388 Late Holocene short-term climate changes Little Ice Age Medieval Warm Period pollen analysis south-eastern Tuva info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftjges https://doi.org/10.24057/2071-9388-2018-64 2021-05-21T07:34:48Z Pollen analysis was carried out on an 80-cm sedimentary section on the shore of Lake Tere-Khol (southeastern Tuva). The section consists of peat overlapping lake loams and covers the last 2800 years. The alternation of dry-wet and cold-warm epochs has been established, and changes in heat and moisture occurred non-simultaneously. The first half of the studied interval, from 2.8 to 1.35 kyr BP was relatively arid and warmer on average. Against this background, temperature fluctuations occurred: relatively cold intervals 2.8–2.6 and 2.05–1.7 kyr BP and relatively warm 2.6-2.05 and 1.7-1.35 kyr BP. The next time interval 1.35-0.7 kyr BP was relatively humid. Against this background, the temperatures varied from cold 1.35-1.1 kyr BP to relatively warm 1.1–0.7 kyr BP. The last 700 years have been relatively cold with a short warming from 400 to 250 years ago. This period included a relatively dry interval 700–400 years ago and more humid climate in the last 400 years. The established climate variability largely corresponds to other climate reconstructions in the Altai-Sayan region. The general cooling trend corresponds to an astronomically determined trend towards a decrease in solar radiation in temperate latitudes of the Northern Hemisphere, and the centennial temperature fluctuations detected against this background correspond well to changes in solar activity reconstructed from 14C production and the concentration of cosmogenic isotopes in Greenland ice. Against the general tendency towards aridization, alternating wet and dry phases correspond well to changes in the activity of the Asian monsoon, established by the oxygen-isotope composition of speleothems in South China. Article in Journal/Newspaper Greenland Siberia Geography, Environment, Sustainability (E-Journal) Greenland Tuva ENVELOPE(12.506,12.506,65.215,65.215) GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 12 2 148 161

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