Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S1067413621050052

Ключевые слова: conifers, stable carbon isotopes, cellulose, climate, permafrost, drought

Аннотация: Recent climatic changes significantly affected forest ecosystems in northern Eurasia. Trees growing in Siberia are very sensitive to climate change due to strong temperature limitation of their growth. Our study covers high-latitude (northeastern Yakutia, eastern Taimyr, central Evenkia) and high-altitude (Russian Altai) zones in Eurasia, where tree-ring parameters (tree-ring width, cell-wall thickness, and maximum latewood density) mainly record summer air temperature variations. To reveal the impact of moisture changes (e.g., amount of precipitation, vapor pressure deficit, relative humidity and potential evapotranspiration) on tree growth in Siberian forest ecosystems, we evaluated delta C-13 in tree-ring cellulose over the past century. We found that at all the study sites mainly June-July precipitation and June-July evapotranspiration affect larch radial growth, while the strongest influence of vapor pressure deficit on the delta C-13 was observed in northeastern Yakutia. Further increase of vapor pressure deficit and rise of air temperature in the coming decades in Siberian regions will probably lead to drought and related forest mortality even under additional source of water due to permafrost thaw.

Журнал: RUSSIAN JOURNAL OF ECOLOGY

Выпуск журнала: Vol. 52, Is. 5

Номера страниц: 368-375

ISSN журнала: 10674136

Место издания: NEW YORK

Издатель: PLEIADES PUBLISHING INC

• Churakova (Sidorova) O.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Swiss Fed Inst Forest Snow & Landscape Res WSL, CH-8903 Birmensdorf, Switzerland)
• Fonti M.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Siegwolf R.T.W. (Swiss Fed Inst Forest Snow & Landscape Res WSL, CH-8903 Birmensdorf, Switzerland)
• Kirdyanov A.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; RAS, Fed Res Ctr, Krasnoyarsk Sci Ctr, Sukachev Inst Forest,SB, Krasnoyarsk 660036, Russia)
• Knorre A.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Natl Pk Krasnoyarsk Stolby, Krasnoyarsk 660006, Russia)
• Trushkina T.V. (Reschetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia)
• Myglan V.S. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Vaganov E.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; RAS, Fed Res Ctr, Krasnoyarsk Sci Ctr, Sukachev Inst Forest,SB, Krasnoyarsk 660036, Russia)
• Saurer M. (Swiss Fed Inst Forest Snow & Landscape Res WSL, CH-8903 Birmensdorf, Switzerland)

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