DBPapers
DOI: 10.5593/sgem2012/s15.v4004

SAPLING DYNAMICS OF SIBERIAN STONE PINE IN MOUNTAIN FORESTS OF TUVA

K. KUULAR
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 4, 21 - 24 pp

ABSTRACT

Currently, the climate change influence on ecotonic zones is actively researched. Tyva
mountain forests located in a transitive strip between boreal and arid zones present great
interest. Situated within latitudinal borders of boreal forests it does belong to the
southern part of mountains of Southern Siberia. Low-density forests, with composite
structure and mixed composition, with an average plantation increment, are dominating.
Boreal forests as a unique natural biome are concentrated in mountain chains and they
are presented by the pure cedar or mixed larch-cedar plantation.
Pinus sibirica forests grow mainly on the top and middle of altitudinal belts (on
northern, east and northeast slopes). The increases of the average temperatures in winter
both spring months and increase of the humidity are the most important factors. Which
should lead to expansion of borders of the altitude-belts complexes of dark coniferous
forests, especially to expansion of area of Pinus sibirica at the bottom and top borders
of its growth.

Keywords: recruitment, sapling, growth, mountain forests, Tuva

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