Holocene history of the environment and development of bogs on the eastern slope of the Polar and Pre-Polar Urals

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Abstract


Deposits of permafrost peat bogs, which have been opened by natural outcrops of rivers and lakes have been investigated in forest-tundra and north taiga zones of eastern slope of the Polar and Pre-Polar Ural Mountains. Pollen and botanical analysis of peat and radiocarbon dating of deposits were used as research methods. Fluctuations of vegetation and ecological conditions were revealed in Holocene from Preboreal till Subboreal periods. The Holocene growth of heat level was shown to be traced by spatial and temporal dynamics of the tree line to northwards. In the warmest Atlantic period taiga forests with predominance of spruce were spreaded on the whole territory. Intensive peat formation have been occurred from 9000 till 4000 years ago.


N K Panova

Botanical Garden, RAS (Ural Branch)

Author for correspondence.
Email: natapanova@mail.ru

Botanical Garden, RAS (Ural Branch)

T G Antipina

Botanical Garden, RAS (Ural Branch)

Email: natapanova@mail.ru

Botanical Garden, RAS (Ural Branch)

V Jankovska

Institute for Botany, Academy of Science

Email: natapanova@mail.ru

Institute for Botany, Academy of Science

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