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Title: MODELING THE PROCESSES OF SALINIZATION OF FROZEN SOILS (ON THE EXAMPLE OF AGROZEMS OF CENTRAL YAKUTIA)
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MODELING THE PROCESSES OF SALINIZATION OF FROZEN SOILS (ON THE EXAMPLE OF AGROZEMS OF CENTRAL YAKUTIA)
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1314-2704
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English
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17
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32
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A significant part of the salinized lands is situated in the continental Asia. These areas include the south of Western Siberia, part of the south of Eastern Siberia, including Zabaikalye and Yakutia, Kazakhstan, the republics of Central Asia and Caucasus, the central part of China, Mongolia, Turkey, Iran and India. In Yakutia the 27,7% of farmland territories consists of frozen salinized soils, mainly concentrated in the central part of Yakutia. Such problems as the distribution of natural salts in the soil profile, their accumulation by organic matter and the compounds entering to the soil as a result of anthropogenic salinization remain unexplored.
Methodologically, the present research is based on the conception of Liya G. Elovskaya, which explains the salt profile of permafrost soils as a consequence of the halo-chemical soil-formation process. The characteristics of distribution of microelements in the permafrost soils of Central Yakutia are examined in this paper using the model experiment of salinization processes. It presents the results of the distribution of microelements before and after the introduction of CuCl2 reagent. The examination of the salinization process has demonstrated the changes of the microelement composition. A supra-frozen accumulation horizon has been identified. It indicates a high probability of increase of the internal soil runoff contamination in the studied soil section in case of secondary salinization, since the permafrost serves as permeability barrier. |
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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397-404
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29 June - 5 July, 2017
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website
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cdrom
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3444
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salinization process; Yakutia; saline soils; permafrost soils
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