Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S106741362105012X

Ключевые слова: climate, conifers, tree growth, quantitative wood anatomy, ray parenchyma

Аннотация: The forest-steppe ecotone in southern Siberia is the natural transition zone from the dry steppe in the south to the wetter taiga in the north, where tree growth is increasingly limited due to drought. Within this zone, tree growth limitation is expected to intensify due to ongoing climate changes, reducing forest productivity, affecting tree physiological processes and increasing tree mortality, with potential implications for the regional and global carbon cycle. We explored Pinus sylvestris L. tree ring growth and structure response to climate in southern Siberia. We measured tree-ring width (RW) and xylem parenchyma represented as the percentage of ring surface occupied by parenchyma rays (PERPAR) and the total amount of ray parenchyma per sample width (TOTRAY) within the growth rings for the 1967-2018 period. The results showed an influence of environmental conditions before and during the formation of ray parenchyma, with an independent climate response from the observed in the RW. Therefore, pine xylem parenchyma-based chronologies have potential as a proxy to evaluate climate sensitivity in P. sylvestris. However, the dependence on climate conditions might affect ray parenchyma's critical role in conifers as P. sylvestris under the current temperature-induced drought trend in the forest-steppe.

Журнал: RUSSIAN JOURNAL OF ECOLOGY

Выпуск журнала: Vol. 52, Is. 5

Номера страниц: 406-411

ISSN журнала: 10674136

Место издания: NEW YORK

Издатель: PLEIADES PUBLISHING INC

• Tabakova M.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Sukachev Inst Forest,SB, Krasnoyarsk 660036, Russia)
• Tabakova K.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Khotcinskaia K.I. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Sergeeva O.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Sukachev Inst Forest,SB, Krasnoyarsk 660036, Russia)
• Arzac A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)

• Web of Science Core Collection
• Scopus
• Ядро РИНЦ (eLIBRARY.RU)