Abstract
Presented are the results from investigating the periglacial zone of the Munku-Sardyk massif in Eastern Sayan. Dendrochronometry data are used in analyzing the cyclicity of natural processes that manifests itself in increment in trees growing in extreme conditions. The analysis revealed secular and intrasecular cycles. A correlation of increments in larch and Siberian stone pine with changes in summer temperatures (the correlation coefficients 0.56 and 0.48, respectively) is observed. For the period of observation of the Peretolchin glacier (1900–2015), the stages of its retreat (1900–1965 and 1983–2000) and advance (1965–1983) were revealed, which influenced the changes in increment in trees and the degree of accumulation of bottom sediments in the proglacial Lake Ekhoi. A comparison of the character of growth of a “fossil” tree in the Holocene optimum with present-day long-lived trees shows a higher sensitivity of the ancient tree (the coefficient 0.43) and a lower sensitivity in present-day trees (0.32 for larch, and 0.26 for Siberian stone pine). Thermochronometry data were used to determine a decrease in air temperature with height in June (an optimal month for increments in trees) by 0.468 °C/100 m.
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References
Peretolchin, S.P., Glaciers of the Munku-Sardyk Mountain Range, Izv. Tomsk. Tekhn. Ins., 1908, vol. 9, pp. 1–47 [in Russian].
Catalogue of Glaciers of the USSR, Leningrad: Gidrometeoizdat, 1973, vol. 16: Angara-Yenisei Region [in Russian].
Kotlyakov, V.M., Khromova, T.E., Nosenko, G.A., Popova, V.V., Chernova, L.P., Muravyev, A.Ya., Rototaeva, O.V., Nikitin, S.A., and Zverkova, N.M., Current Changes in Glaciers of Mountainous Regions of Russia, Moscow: KMk Scientific Press, 2015 [in Russian].
Kitov, A.D., Plyusnin, V.M. and Kovalenko, S.N., The Results of 100-Year Observations of the Glacial Geosystem Dynamics in the Munku-Sardyk Massif, Geogr. Nat. Resour., 2009, vol. 30, issue 3, pp. 272–278.
Kotlyakov, V.M., Grosval’d, M.G., Dyurgerov, M.B., and Mazo, V.L., Response of Glaciation to Future Changes of Climate, Izv. Akad. Nauk, Ser. Geogr., 1991, no. 5, pp. 35–45 [in Russian].
Timoshok, E.E., Narozhnyi, Yu.K., Dirks, M.N., Skorokhodov, S.N., and Berezov, A.A., Dynamics of Glaciers, and Formation of Vegetation on Young Moraines of Central Altai, Tomsk: NTL, 2008 [in Russian].
Komarov, V.L., A Travel to the Tunka Region and to Lake Kosogol in 1902, Selected Works, Moscow: Izd-vo ANSSSR, 1953, vol. 9, pp. 217–291[in Russian].
Kitov, A.D. and Plyusnin, V.M., Databases of Glaciers of Cisbaikalia, Proc. Int. Conf. “Sustainable Development of Territories: Cartographic-Geoinformation Support” (November 12–19, 2015, Krasnodar–Sochi–Suva), Krasnodar: Kub. Univ., 2015, pp. 318–332 [in Russian].
Kitov, A.D. and Plyusnin, V.M., Nival-Glacial Dynamics of Geosystems in Eastern Siberia (Russia) for the Last 50 Years, Environ. Earth Sci., 2015, vol. 74, issue 3, pp. 1915–1930.
Suvorov, E.G. and Kitov, A.D., Landscape Structure of the Southeastern Part of Eastern Sayan, Geogr. Nat. Resour., 2013, vol. 34, issue 4, pp. 371–377.
Preobrazhenskii, V.S., Fadeeva, N.V., Mukhina, L.I., and Tomilov, G.M., The Types of Terrain and Natural Regionalization of the Buryat ASSR, Moscow: Izd. AN SSSR, 1959 [in Russian].
Mikhailov, N.I., The Mountains of Southern Siberia: An Essay on Nature, Moscow: Geografgiz, 1961 [in Russian].
Handbook on the Climate of the USSR, Leningrad: Gidrometeoizdat, 1960, issue 23, part 2; 1968, issue 23, part 4 [in Russian].
Meteorological Monthly Publication, Irkutsk; Novosibirsk: Irk. Territor. Upravlenie Gidrometsluzhby, 1961–1991, issue 22, part 2 [in Russian].
Shiyatov, S.G., Dendrochronology of the Upper Timber-Line on Ural, Moscow: Nauka, 1986 [in Russian].
Vaganov, E.A. and Shiyatov, S.G., Dendroclimatic and Dendroecological Studies in Northern Eurasia, Lesovedenie, 2005, no. 4, pp. 18–27 [in Russian].
Stepanova, O.G., Trunova, V.A., Zvereva, V.V., Mel’gunov, M.S., Petrovskii, S.K., Krapivina, S.M., and Fedotov, A.P., Reconstruction of the Peretolchin Glacier Fluctuation (East Sayan) During the 20th Century Inferred from the Bottom Sediments of Proglacial Lake Ekhoi, Russ. Geol. Geophys., 2015, vol. 56, issue 9, pp. 1273–1280.
Stepanova, O.G., Trunova, V.A., Sidorina, A.V., Zvereva, V.V., Melgunov, M.S., Petrovskii, S.K., Krapivina, S.M., Fedotov, A.P., and Rakshun, Ya.V., Investigating Bottom Sediments from Proglacial Lake Ehoy (Eastern Sayan Ridge) by Means of SR–XRF, Bull. Russ. Acad. Sci. Phys., 2015, vol. 79, issue 1, pp. 118–121.
Kitov, A.D., Kovalenko, S.N., Plyusnin, V.M., and Suvorov, E.G., Modern Changes of the High-Mountain Landscapes and Glaciation in Southern Siberia (Russia) by the Example of the Eastern Sayan Mountains, Environ. Earth Sci., 2015, vol. 74, issue 3, pp. 1931–1946.
Oidupaa, O.Ch., Vaganov, E.A. and Naurzbaev, M.M., Prpolonged Changes in Summer Temperature and Radial Increment of Larch Trees at the Upper Timberline in the Altai-Sayan Mountains, Lesovedenie, 2004, no. 6, pp. 14–24 [in Russian].
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Original Russian Text © E.G. Suvorov, A.D. Kitov, 2017, published in Geografiya i Prirodnye Resursy, 2017, Vol. 38, No. 1, pp. 152-162.
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Suvorov, E.G., Kitov, A.D. Variability in natural conditions of the periglacial zone of the Munku-Sardyk massif (Eastern Sayan). Geogr. Nat. Resour. 38, 101–110 (2017). https://doi.org/10.1134/S1875372817010139
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DOI: https://doi.org/10.1134/S1875372817010139