| Инд. авторы: | Vorobyeva S.S., Trunova V.A., Stepanova O.G., Zvereva V.V., Petrovskii S.K., Melgunov M.S., Zheleznyakova T.O., Chechetkina L.G., Fedotov A.P. |
| Заглавие: | Impact of glacier changes on ecosystem of proglacial lakes in high mountain regions of East Siberia (Russia) |
| Библ. ссылка: | Vorobyeva S.S., Trunova V.A., Stepanova O.G., Zvereva V.V., Petrovskii S.K., Melgunov M.S., Zheleznyakova T.O., Chechetkina L.G., Fedotov A.P. Impact of glacier changes on ecosystem of proglacial lakes in high mountain regions of East Siberia (Russia) // Environmental Earth Sciences. - 2015. - Vol.74. - Iss. 3. - P.2055-2063. - ISSN 1866-6280. - EISSN 1866-6299. |
| Внешние системы: | DOI: 10.1007/s12665-015-4164-6; SCOPUS: 2-s2.0-84937522261; WoS: 000358073800018; |
| Реферат: | eng: Mountain lakes in East Siberia have been studied for recent changes in water chemistry, turbidity and diatom assemblages preserved in bottom sediments. We performed a regional analysis of the relative effect of climate and glacier changes on change in diatom diversity and supply of meltware in proglacial lakes. We analysed sediment records from East Siberian glacier lakes using geochemical and diatoms proxies. We found that dramatic changes in communities and abundance of diatoms and biogenic proxy could be induced by low nutrient concentrations in glacial lakes and high turbidity due to active degradation of glaciers and snow patches as a result of the global increase in temperature in the Northern Hemisphere. Our evidences show that diatoms have been gradually decreased since ca. the 1880s. A significant tendency towards diatom reducing occurred at high summer regional temperatures. This tendency may be attributed to the fact that glaciers and snow patches thawed actively in East Siberia during ca. 1880–1958, which was induced by the beginning of the Recent Warming (ca. 1850–1860) and a long period of relatively warm regional climate from ca. 1900 to 1960. © 2015, Springer-Verlag Berlin Heidelberg.
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| Ключевые слова: | Siberia; Russian Federation; Kodar Mountains; water chemistry; turbidity; species diversity; snow; regional climate; proglacial environment; Northern Hemisphere; mountain region; lacustrine deposit; glacier dynamics; diatom; climate effect; biogenic deposit; abundance; Sediments; Kodar; East Siberia; East Sayan; Diatoms; Bottom sediments; Turbidity; Snow; Regional planning; Phytoplankton; Lakes; Glaciers; Eutrophication; Climate change; Algae; Kodar; Glaciers; East Siberia; East Sayan; Diatoms; Bottom sediments; Glacier flour; Bacillariophyta; |
| Издано: | 2015 |
| Физ. характеристика: | с.2055-2063 |