Organic matter structure and composition of permafrost peatlands in the European North-East

• Main Authors: D. A. Kaverin, E. M. Lapteva, A. V. Pastukhov
• Format: Dataset
• Language: Russian
• Published: Theoretical and Applied Ecology 2015
• Subjects: peaty oligotrophic soils; peat circles; soil organic matter; active layer; permafrost; Tundra
• Online Access: https://dx.doi.org/10.25750/1995-4301-2015-1-013-020; http://envjournal.ru/ari/v2015/v1/files/15103.pdf

The paper deals with structure of permafrost peatlands from the southern part of the Bolshezemelskaya Tundra region. The soil-geocryological complex of peatlands was found for three constituents in its structure as ’active layer – upper permafrost – lower permafrost’. Profile distribution and composition of some soil organic matter components at peatlands was studied. The humus state parameters which are accessed on base of fraction-group humus composition data are good markers of formation conditions of active layers and permafrost rocks in soils of peatlands from the south- eastern part of the Bolshezemelskaya Tundra region. The most indicative among them are: carbon content of water-soluble organic compounds, humic to fulvic acids ratio,ratio of fractions in composition of humic acids. Zero vegetation cover on peat circles corresponds with low content of easy-mineralizable organic compounds in soil which provide plants with nitrogen and nutrients.