Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Impact of glacier changes on ecosystem of proglacial lakes in high mountain regions of East Siberia (Russia). / 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.
в: Environmental Earth Sciences, Том 74, № 3, 23.08.2015, стр. 2055-2063.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Impact of glacier changes on ecosystem of proglacial lakes in high mountain regions of East Siberia (Russia)
AU - Vorobyeva, S. S.
AU - Trunova, V. A.
AU - Stepanova, O. G.
AU - Zvereva, V. V.
AU - Petrovskii, S. K.
AU - Melgunov, M. S.
AU - Zheleznyakova, T. O.
AU - Chechetkina, L. G.
AU - Fedotov, A. P.
PY - 2015/8/23
Y1 - 2015/8/23
N2 - 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.
AB - 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.
KW - Bottom sediments
KW - Diatoms
KW - East Sayan
KW - East Siberia
KW - Glacier flour
KW - Glaciers
KW - Kodar
UR - http://www.scopus.com/inward/record.url?scp=84937522261&partnerID=8YFLogxK
U2 - 10.1007/s12665-015-4164-6
DO - 10.1007/s12665-015-4164-6
M3 - Article
AN - SCOPUS:84937522261
VL - 74
SP - 2055
EP - 2063
JO - Environmental Earth Sciences
JF - Environmental Earth Sciences
SN - 1866-6280
IS - 3
ER -
ID: 51890429