Universität zu Köln

Savelieva, Larisa A., Andreev, Andrei A., Gromig, Raphael ORCID: 0000-0001-9217-4259, Subetto, Dmitry A., Fedorov, Grigory B., Wennrich, Volker ORCID: 0000-0003-3617-1963, Wagner, Bernd ORCID: 0000-0002-1369-7893 and Melles, Martin (2019). Vegetation and climate changes in northwestern Russia during the Lateglacial and Holocene inferred from the Lake Ladoga pollen record. Boreas, 48 (2). S. 349 - 361. HOBOKEN: WILEY. ISSN 1502-3885

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Abstract

The new pollen record from the upper 12.75m of a sediment core obtained in Lake Ladoga documents regional vegetation and climate changes in northwestern Russia over the last 13.9cal. ka. The Lateglacial chronostratigraphy is based on varve chronology, while the Holocene stratigraphy is based on AMS C-14 and OSL dates, supported by comparison with regional pollen records. During the Lateglacial (c.13.9-11.2cal. ka BP), the Lake Ladoga region experienced several climatic fluctuations as reflected in vegetation changes. Shrub and grass communities dominated between c.13.9 and 13.2cal. ka BP. The increase in Picea pollen at c.13.2cal. ka BPprobably reflects the appearance of spruce in the southern Ladoga region at the beginning of the AllerOd interstadial. After c.12.6cal. ka BP, the Younger Dryas cooling caused a significant decrease in spruce and increase in Artemisia with other herbs, indicative of tundra- and steppe-like vegetation. A sharp transition from tundra-steppe habitats to sparse birch forests characterizes the onset of Holocene warming c.11.2cal. ka BP. Pine forests dominated in the region from c.9.0 to 8.1cal. ka BP. The most favourable climatic conditions for deciduous broad-leaved taxa existed between c.8.1 and 5.5cal. ka BP. Alder experiences an abrupt increase in the local vegetation c.7.8cal. ka BP. The decrease in tree pollen taxa (especially Picea) and the increase in herbs (mainly Poaceae) probably reflect human activity during the last 2.2cal. ka. Pine forests have dominated the region since that time. Secale and other Cerealia pollen as well as ruderal herbs are permanently recorded since c. 0.8cal. ka BP.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Savelieva, Larisa A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Andreev, Andrei A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gromig, Raphael UNSPECIFIED orcid.org/0000-0001-9217-4259 UNSPECIFIED Subetto, Dmitry A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fedorov, Grigory B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wennrich, Volker UNSPECIFIED orcid.org/0000-0003-3617-1963 UNSPECIFIED Wagner, Bernd UNSPECIFIED orcid.org/0000-0002-1369-7893 UNSPECIFIED Melles, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-152139
DOI:	10.1111/bor.12376
Journal or Publication Title:	Boreas
Volume:	48
Number:	2
Page Range:	S. 349 - 361
Date:	2019
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1502-3885
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute of Geology and Mineralog
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EASTERN BALTIC REGION; KARELIAN ISTHMUS; INTCAL13; HISTORY; BASIN Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15213