DBPapers
DOI: 10.5593/SGEM2015/B32/S14.078

UNKNOWN FORESTS OF WESTERN SIBERIA

Ovechkina E.S., Schaichmetova R.I.
Thursday 24 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-37-7 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 2, 585-594 pp

ABSTRACT
The main feature of landscapes in the West Siberia’s taiga is a high level of waterlogging, therefore the role of forests there is modest. The area occupied by forests is almost equal, and sometimes is even smaller than the area of swamps [1].
Until now the nature of West Siberia has remained unexplored in the botanical respect. "Blank Spots" are located in the north-east and east parts.
The goal of this work is to study forests along small rivers of West Siberia’s north-east. Changes in the flood-lands’ landscape and in the type of vegetation along rivers’ flows are defined by the decrease of the base level, by the change of river-bed’s and flood-plain’s processes, but not by zonal climate factors, which is typical for flood-lands of rivers flowing in the meridional direction.
During field expeditionary research, rare biocoenoses of Abies sibirica Ledeb., Pinus sibirica Du Tour, Larix sibirica Ledeb. have been described. The main research methods used were geobotanical descriptions and their statistical processing. In analysis we used the ecologo-phytocoenotic method of vegetation studies.
In the years of research (1995-2013), typical associations were discovered and rare biocoenoses were described. Distinctive features of these biocoenoses are the structure of forests and floristic composition which are not typical for the most part of West Siberia. Among them are: Laricetum sibiricae vaccinioso-parviherbosum (union Dicrano-Pinion Libb. 1933, order Cladonio-Piceetalia K.-Lund 1967, class Vaccinio-Piceetea Br.-Bl. in Br.-Bl., Siss. et Vlieger 1939), Pinetum sibiricae magnoherboso-oxalidosum (union Vaccinio-Piceion Br.-Bl., Siss. et Vlieger 1939, order Vaccinio-Piccinio-Piceetea), Abietetum sibiricae mixtoherboso-oxalidosum (union Vaccinio-Piceion Br.-Bl., Siss. et Vlieger 1939, order Vaccinio-Piceetalia Br.-Bl. 1939 em. K.-Lund 1067, class Vaccinio-Piceetea), and others [2].
The biocoenoses have a rich floristic composition and distinguish themselves by a high productivity – up to 400-450 metric centners per hectare. All forests fall into the category of the unique ones in the biological sense. The obtained data also has allowed to enlarge the list of higher vascular plants, discover rare ones and determine the necessity to create conservation areas.
Nowadays majority of researchers prefer remote research which allows to perform a large amount of work quickly and with good quality. But modern technologies do not allow to perform complete descriptions of forest biocoenoses and evaluate their features. The authors of this article propose the material that was obtained during expeditions, and this is a significant contribution. Researchers might be able to contribute to the creation of a system to monitor forests of West Siberia [3, 4].

Keywords: vegetation, forest, floodplain, flora, productivity.

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