科研之友
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摘要
The distribution, development, and properties of the sedimentary parent materials in the northeastern sector of the Russian Arctic and Subarctic regions are discussed. Vast areas in this sector are occupied by deposits of the Ice Complex that were formed in the Late Pleistocene and have been preserved in the frozen state up to the present time. The processes of synlithogenic pedogenesis took an active part in the formation of these deposits; owing to them, the sediments are enriched in organic matter. A larger part of this organic matter is represented by fine plant detritus. In the course of the thermokarst processes and partial thawing of these deposits in the Holocene, the organic matter content in the upper part of the Ice Complex has some-what decreased, and its qualitative composition has changed. The soil profiles developing from these deposits inherit the relict organic matter.
- 出版日期2010-11
