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Composition of structural fragments and the mineralization rate of organic matter in zonal soilsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 ноября 2015 г.
- Авторы: Larionova A.A., Zolotareva B.N., Kolyagin Y.G., Kvitkina A.K., Kaganov V.V., Kudeyarov V.N.
- Журнал: Eurasian Soil Science
- Том: 48
- Номер: 10
- Год издания: 2015
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1110
- Последняя страница: 1119
- DOI: 10.1134/S1064229315100063
- Аннотация: Comparative analysis of the climatic characteristics and the recalcitrance against decomposition of organic matter in the zonal soil series of European Russia, from peat surface-gley tundra soil to brown semidesert soil, has assessed the relationships between the period of biological activity, the content of chemically stable functional groups, and the mineralization of humus. The stability of organic matter has been determined from the ratio of functional groups using the solid-state 13C NMR spectroscopy of soil samples and the direct measurements of organic matter mineralization from CO2 emission. A statistically significant correlation has been found between the period of biological activity and the humification indices: the CHA/CFA ratio, the aromaticity, and the alkyl/O-alkyl ratio in organic matter. The closest correlation has been observed between the period of biological activity and the alkyl/O-alkyl ratio; therefore, this parameter can be an important indicator of the soil humus status. A poor correlation between the mineralization rate and the content of chemically stable functional groups in soil organic matter has been revealed for the studied soil series. At the same time, the lowest rate of carbon mineralization has been observed in southern chernozem characterized by the maximum content of aromatic groups (21% Corg) and surface-gley peat tundra soil, where an extremely high content of unsubstituted CH2 and CH3 alkyl groups (41% Corg) has been noted. © 2015, Pleiades Publishing, Ltd.
- Добавил в систему: Колягин Юрий Геннадьевич