Инд. авторы:	Fedotov A.P., Phedorin M.A., Enushchenko I.V., Vershinin K.E., Krapivina S.M., Vologina E.G., Petrovskii S.K., Melgunov M.S., Sklyarova O.A.
Заглавие:	Drastic desalination of small lakes in East Siberia (Russia) in the early twentieth century: Inferred from sedimentological, geochemical and palynological composition of small lakes
Библ. ссылка:	Fedotov A.P., Phedorin M.A., Enushchenko I.V., Vershinin K.E., Krapivina S.M., Vologina E.G., Petrovskii S.K., Melgunov M.S., Sklyarova O.A. Drastic desalination of small lakes in East Siberia (Russia) in the early twentieth century: Inferred from sedimentological, geochemical and palynological composition of small lakes // Environmental Earth Sciences. - 2013. - Vol.68. - Iss. 6. - P.1733-1744. - ISSN 1866-6280.
Внешние системы:	DOI: 10.1007/s12665-012-1864-z; SCOPUS: 2-s2.0-84874363379;
Реферат:	eng: Reconstruction of temporal and spatial climate development on a seasonal basis during the last few centuries may help us better understand modern-day interplay between natural and anthropogenic climate variability. The objective of this paper is to reconstruct hydrology and landscape changes of East Siberia during the termination of the Little Ice Age and the subsequent Recent Warming. We analysed sediment samples from the saltwater Sulfatnoe Lake, Bolshoye Alginskoe and freshwater Shuchie Lake using high-resolution X-ray fluorescence spectroscopy at 1-mm scan resolution, Fourier-transform infrared techniques and pollen analyses. The depth-age models of the cores were constructed by 210Pb activity using the constant rate of supply model. The lake sediment cover of these lakes began to form from ca. 1870. Three significant periods (1870-1895, 1895-1925 and from 1925 to the present) were defined in hydrology and chemical regime of these lakes for the past 140 years. Lake levels were extremely low and high saturated with salts during the final period of the Little Ice Age. Lake levels began to slowly rise from 1870 to 1895 and vegetation was poor at that period. Intensive desalination of the lakes occurred in 1895-1925, and environment conditions were temperate and favourable for the majority of the taxa of the regional vegetation. Regional precipitation significantly increased and water saturation of the catchments was high from 1925 to the present. The chemical precipitation of carbonate stopped completely in Lake Shichie and reduced considerably in Lake Sulfatnoe and B. Alginskoe. Strong increasing trend of weathering of the lake catchments began in 1970 and still continues. © 2012 Springer-Verlag.
Ключевые слова:	landscape change; lead isotope; Little Ice Age; paleoclimate; paleoenvironment; palynology; Siberia; Russian Federation; X-ray fluorescence; warming; vegetation history; twentieth century; sedimentology; reconstruction; precipitation (chemistry); lacustrine deposit; geochemistry; FTIR spectroscopy; fluorescence spectroscopy; desalination; climate variation; chemical weathering; carbonate; Lakes; Water filtration; Vegetation; Sediments; Sedimentology; Runoff; Fluorescence spectroscopy; Desalination; Climatology; Catchments; X ray fluorescence spectroscopy; The recent warming; Pollen analysis; Little Ice Age; Lake bottom sediments; Fourier transform infra reds; East Siberia; X-ray fluorescence spectroscopy; The recent warming; lake water; Pollen analyses; Lake bottom sediments; Fourier-transform infrared techniques; East Siberia; Desalination; The Little Ice Age;
Издано:	2013
Физ. характеристика:	с.1733-1744