Abstract
The article presents the results of numerical reconstruction of annual precipitation (PANN, mm/yr) in the Holocene and Younger Dryas (YD) based on the pollen data from bottom sediments of two lakes (Maloye Yarovoe and Kuchuk) in the Kulunda Depression in Southwestern Siberia. Precipitation was reconstructed using the transfer function calibrated on the database of surface pollen spectra. The reconstruction of the YD annual precipitation reveals the mean amount of PANN at 285 mm/yr for Maloe Yarovoye and 322 mm/yr for Kuchuk. The average PANN values calculated for the Holocene were 340 and 364 mm/yr, respectively. The mean PANN of the YD from Maloe Yarovoe was 21 % less than the present-day precipitation level. The YD of the Kulunda Depression was distinguished by treeless steppe and semidesert environment with the decreased level of annual precipitation. The Holocene in Kulunda started with rapid increase of tree taxa (Betula, Pinus sylvesris) in pollen spectra. The maximum of Pinaceae (P. sylvestris, P. sibirica, Abies and Picea) with significant contribution of Ulmus occurred between 7500-2600 BP. The PANN values for this interval were 352 mm/ yr for Maloe Yarovoe and 378 mm/yr for Kuchuk. The decrease of the PANN began in the Late Holocene testifying to climate aridization, although not as strong as in the YD.
Keywords
Holocene, Younger Dryas, Southwestern Siberia, climate, vegetation
References
Bjorck S. Younger Dryas oscillation, global evidence. Encyclopedia of Quaternary Science. Oxford: Elsevier B.V., 2007, pp. 1987-1994.
Faegri K., Iversen J. Textbook of Pollen Analysis. Caldwell: The Blackburn Press, 1989, 328 p.
Gidrogeologiya SSSR. Moscow: Nedra, 1970, vol. XVI. Zapadno-Sibirskaya ravnina (Tyumenskaya, Omskaya, Novosibirskaya i Tomskaya oblasti), 368 p. (in Russ.).
IPCC, 2014 : Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. IPCC: Geneva; Switzerland, 151 p.
Juggins S. C2 Version 1.5 User guide: Software for ecological and palaeoecological data analysis and visualisation. Newcastle upon Tyne: Newcastle Univ., 2007, 73 p.
Korolyuk A.Yu., Smolentsev B.A., Lashchinskii N.N. Pochvenno-rastitel’nyi pokrov priozernoi ravniny Kulundinskogo ozera. Rastitel ’nyi mir Aziatskoi Rossii, 2008, vol. 2, pp. 80-88 (in Russ.).
Prentice C.I., Guiot J., Huntley B., Jolly D., Cheddadi R. Reconstructing biomes from palaeoecological data: a general method and its application to European pollen data at 0 and 6 ka. Climate Dynamics, 1996, vol. 12, pp. 185-193.
Rudaya N., Nazarova L., Nourgaliev D., Pala-gushkina O., Papin D., Frolova L. Mid-late Holocene environmental history of Kulunda, southern West Siberia: vegetation, climate and humans. Quaternary Science Reviews, 2012, vol. 48, pp. 32-42.
Rudaya N.A. Izmenenie rastitel’nosti Kulundy v pozdnem pleistotsene i golotsene: pervye itogi palinologicheskogo izucheniya kerna donnykh otlozhenii ozera Kuchuk. In Problems of Archaeology, Ethnography, Anthropology of Siberia and Neighboring Territories. Novosibirsk: IAET SB RAS Publ., 2018, vol. XXIV, pp. 146-149 (in Russ.).
ter Braak C.J.F. Ordination. Data analysis in community and landscape ecology. Cambridge: Cambridge Univ. Publ., 1995, ch. 5, pp. 69-173.
ter Braak C.J.F., P. Smilauer. CANOCO reference manual and CanoDraw for Windows user’s guide: software for canonical community ordination (version 4.5). Ithaca: Microcomputer Power, 2002.
Velichko A.A., Cattob N., Drenova A.N., Klima-nov V.A., Kremenetski K.V., Nechaev V.P. Climate changes in East Europe and Siberia at the Late glacial-holocene transition. Quaternary International, 2002, iss. 91, pp. 75-99.
Список литературы
Гидрогеология СССР. - М.: Недра, 1970. - Т. XVI. Западно-Сибирская равнина (Тюменская, Омская, Новосибирская и Томская области). - 368 с.
Королюк А.Ю., Смоленцев Б. А., Лащинский Н.Н. Почвенно-растительный покров приозерной равнины Ку -лундинского озера // Растительный мир Азиатской России. - 2008. - Т. 2. - С. 80-88.
Рудая Н.А. Изменение растительности Кулунды в позднем плейстоцене и голоцене: первые итоги палинологического изучения керна донных отложений озера Кучук // Проблемы археологии, этнографии, антропологии Сибири и сопредельных территорий. - Новосибирск: Изд-во ИАЭТ СО РАН, 2018. - Т. XXIV. - С. 146-149.
Bjorck S. Younger Dryas oscillation, global evidence // Encyclopedia of Quaternary Sci. - Oxford: Elsevier B.V., 2007. - P. 1987-1994.
Faegri K., Iversen J. Textbook of Pollen Analysis. -Caldwell: The Blackburn Press, 1989. - 328 p.
IPCC, 2014 : Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. - IPCC: Geneva; Switzerland. - 151 p.
Juggins S. C2 Version 1.5 User guide: Software for ecological and palaeoecological data analysis and visualisation. - Newcastle upon Tyne: Newcastle Univ., 2007. - 73 p.
Prentice C.I., Guiot J., Huntley B., Jolly D., Ched-dadi R. Reconstructing biomes from palaeoecological data: a general method and its application to European pollen data at 0 and 6 ka // Climate Dynamics. - 1996. - Vol. 12. -P. 185-193.
Rudaya N., Nazarova L., Nourgaliev D., Pala-gushkina O., Papin D., Frolova L. Mid-late Holocene environmental history of Kulunda, southern West Siberia: vegetation, climate and humans // Quaternary Sci. Reviews. - 2012. - Vol. 48. - P. 32-42.
ter Braak C.J.F. Ordination // Data analysis in community and landscape ecology. - Cambridge: Cambridge Univ. Press, 1995. - Ch. 5. - P. 69-173.
ter Braak C.J.F., P. Smilauer. CANOCO reference manual and CanoDraw for Windows user’s guide: software for canonical community ordination (version 4.5). - Ithaca: Microcomputer Power, 2002.
Velichko A.A., Cattob N., Drenova A.N., Klimanov V.A., Kremenetski K.V., Nechaev V.P. Climate changes in East Europe and Siberia at the Late glacial-holocene transition // Quaternary Intern. - 2002. - Iss. 91. - P. 75-99.