Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1016/j.dendro.2021.125842

Ключевые слова: climate, competition, drought, forest-steppe, iadf

Аннотация: Climate change affects forest dynamics with potential consequences for essential ecosystem services. The retrospective analysis of secondary growth unveils the effect of climate on forests. However, most tree-ring studies focus on dominant trees, and less is known about the climatic response of their neighbor suppressed trees. We evaluated the influence of tree social status (dominant/suppressed) on climate response in Pinus sylvestris L. trees from two sites with contrasting water availability conditions in the forest-steppe ecotone in southern Siberia. Tree-ring width and intra-annual density fluctuations (IADFs) were used as proxies. Late spring to early summer conditions were the main climate drivers in both tree social status, but the climate response of suppressed trees was stronger and had a longer time window (May-June). IADFs’ occurrence was controlled by temperature and its frequency was modulated by local conditions, being more common at the dry site, with tree status just marginally significant. Our results suggest that under the projected warmer and drier climate, suppressed trees in southern Siberia will be prone to increased water shortage, leading to possible higher mortality of more sensitive suppressed trees, with potential consequences for carbon sequestration in the forest-steppe ecosystems in southern Siberia. © 2021 Elsevier GmbH

Журнал: Dendrochronologia

Выпуск журнала: Vol. 67

Номера страниц: 125842

ISSN журнала: 11257865

Издатель: Elsevier GmbH

• Arzac Alberto (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
• Tabakova Maria A. (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia; Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, VN Sukachev Inst Forest SB RAS, Akad Gorodok 50-28, Krasnoyarsk 660036, Russia)
• Khotcinskaia Kseniia (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
• Koteneva Anastasia (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
• Kirdyanov Alexander V. (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia; Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, VN Sukachev Inst Forest SB RAS, Akad Gorodok 50-28, Krasnoyarsk 660036, Russia)
• Olano Jose M. (Univ Valladolid, IuFOR EiFAB, Soria, Spain)

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