NDLI: Genesis and classification position of automorphic soils developed from mantle loams in the northern taiga of European Russia

Content Provider	Springer Nature Link
Author	Tonkogov, V. D. Pastukhov, A. V. Zaboeva, I. V.
Copyright Year	2006
Abstract	Automorphic loamy soils of the northern taiga and forest-tundra zones in the northeastern part of European Russia are characterized. These soils are diagnosed by the presence of a paragenetic system of the podzolic (often, with gley features) and iron-illuvial horizons combined with a specific cryometamorphic CRM horizon. The podzolic horizon is considerably impoverished in the total and oxalate-extractable iron and slightly impoverished in aluminum and clay in comparison with the iron-illuvial horizon. A distinctive feature of the cryometamorphic horizon is its fine angular blocky, ooidal, or granulated structure in the dry state and curdled cryogenic structure in the wet state. The soil profile is relatively weakly differentiated with respect to the contents of clay and sesquioxides. The genesis of these soils is related to a combination of the gley-Al-Fe-humus mobilization, migration, and illuvial accumulation of substances and the cryogenic structuring. According to the new Classification and Diagnostic System of Russian Soils, these soils fit the criteria of iron-illuvial svetlozems in the order of cryometamorphic soils. In the studied area, these soils are found together with texture-differentiated gley-podzolic soils having the Bt horizon and belonging to the order of texture-differentiated soils.
Starting Page	21
Ending Page	28
Page Count	8
File Format	PDF
ISSN	10642293
Journal	Eurasian Soil Science
Volume Number	39
Issue Number	1
e-ISSN	1556195X
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2006-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Applied Geosciences
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Soil Science

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