Reaction of coniferous trees in the Kuznetsk Alatau alpine forest-tundra ecotone to climate change

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S1995425515040137

Ключевые слова: alpine forest-tundra, Larix sibirica, Pinus sibirica, Abies sibirica, elfin forms, climate effect on growth rate, Abies sibirica, alpine forest-tundra, climate effect on growth rate, elfin forms, Larix sibirica, Pinus sibirica, climate change, climate effect, coniferous tree, ecotone, growth rate, temperature gradient, tundra, Kuznetsk Alatau, Russian Federation, Abies, Abies sibirica, Coniferales, Coniferophyta, Larix, Larix sibirica, Pinus sibirica

Аннотация: In recent decades there has been an increase in the radial growth of Larix sibirica Ledeb., Pinus sibirica Du Tour, and Abies sibirica in the Kuznetsk Alatau alpine forest-tundra ecotone. Larch growth correlates positively with summer temperatures; cedar and fir growth is determined by temperature, precipitation, and sunshine duration. It is shown that the current growth of maturing larch trees is about 55% higher than that of a similar age group observed 200 years ago. The rate of larch advancement along the height gradient is estimated at 1 m/10 years. A periodical limitation of the radial growth in fir by winter and summer temperatures is found; the strongest correlation is revealed with summer temperatures (r = 0.9). The growth rate of all conifers correlates highly with the concentration of CO2 in the atmosphere (r = 0.42-0.84). Increased winter temperatures induce the transformation of the elfin forms in larch and cedar (the early 1970s) and later fir (the early 1980s) into vertical forms.

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Издание

Журнал: CONTEMPORARY PROBLEMS OF ECOLOGY

Выпуск журнала: Vol. 8, Is. 4

Номера страниц: 423-430

ISSN журнала: 19954255

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Petrov I.A. (Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences)
  • Kharuk V.I. (Siberian Federal University)
  • Dvinskaya M.L. (Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences)
  • Im S.T. (Siberian Federal University)

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