Growth coherency and climate sensitivity of Larix sibirica at the upper treeline in the Russian Altai-Sayan Mountains

Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Конференция: Workshop on Current Status and the Potential of Tree-Ring Research in Russia; Krasnoyarsk, RUSSIA; Krasnoyarsk, RUSSIA

Год издания: 2016

Идентификатор DOI: 10.1016/j.dendro.2015.12.003

Ключевые слова: Altai-Sayan Mountains, Central Asia, Growth-climate sensitivity, Network analyses, Summer temperature, Tree-ring width, Upper treeline, Altai-Sayan Mountains, Central Asia, Growth-climate sensitivity, Network analyses, Summer temperature, Tree-ring width, Upper treeline, Larix, Larix sibirica

Аннотация: Tree-ring research in the Altai-Sayan Mountains so far only considered a limited number of well replicated site chronologies. The dendroecological and palaeoclimatological potential and limitations of large parts of south-central Russia therefore remain rather unexplored. Here, we present a newly updated network of 13 larch (Larix sibirica Ldb.) tree-ring width (TRW) chronologies from mid to higher elevations along a nearly 1000 km west-to-east transect across the greater Altai-Sayan region. All data were sampled between 2009 and 2014. The corresponding site chronologies cover periods from 440 to 860 years. The highest TRW agreement is found between chronologies >= 2200 m asl, whereas the material from lower elevations reveals overall less synchronized interannual to longer-term growth variability. While fluctuations in average June July temperature predominantly contribute to the growth at higher elevations, arid air masses from Mongolia mainly affect TRW formation at lower elevations. Our results are indicative for the dendroclimatological potential of the Altai-Sayan Mountains, where both, variation in summer temperature and hydroclimate can be robustly reconstructed back in time. These findings are valid for a huge region in central Asia where reliable meteorological observations are spatially scarce and temporally restricted to the second half of the 20th century. The development of new high-resolution climate reconstruction over several centuries to millennia will further appear beneficial for timely endeavors at the interface of archaeology, climatology and history. (C) 2015 Elsevier GmbH. All rights reserved.

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Издание

Журнал: DENDROCHRONOLOGIA

Выпуск журнала: Vol. 39

Номера страниц: 10-16

ISSN журнала: 11257865

Место издания: JENA

Издатель: ELSEVIER GMBH, URBAN & FISCHER VERLAG

Авторы

  • Taynik A.V. (Sukachev Institute of Forest SB RAS)
  • Barinov V.V. (Siberian Federal University)
  • Myglan V.S. (Sukachev Institute of Forest SB RAS)
  • Oidupaa O.C. (Tuva State University)
  • Reinig F. (Swiss Federal Research Institute WSL)
  • Buntgen U. (Swiss Federal Research Institute WSL)

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