Seasonal Formation of Tree Rings in Siberian Larch and Scots Pine in the Southern Taiga of Central Siberia

• Published in: Russian Journal of Ecology
• Main Authors: Ваганов, Евгений Александрович, Kalinina, E. V., Knorre, A. A., Fonti, M. V.
• Other Authors: Институт экологии и географии, Лаборатория биогеохимии экосистем
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2019
• Subjects: Larix sibirica; Pinus sylvestris; temperature gradient; xylem; cambial activity; tree radial growth; anatomical parameters of wood; 34.35.25; taiga; Siberia
• Online Access: https://link.springer.com/article/10.1134/S1067413619030068; http://elib.sfu-kras.ru/handle/2311/128554; https://doi.org/10.1134/S1067413619030068

A comparative analysis of the seasonal formation of tree rings has been performed in Siberian larch (Larix sibirica Ledeb.) and Scots pine (Pinus sylvestris L.), growing in the southern taiga of Central Siberia in two sites on the altitudinal transect (200 and 536 m a.s.l.). Core samples were taken from April to September in 2012. The results have shown that the onset and duration of different phases of tree ring formation in larch and pine are determined by the geographic location of the sites and the related temperature gradient. It should be noted that species-specific features of tree growth have an effect on the formation of xylem cells during the growing period and, as a consequence, on the dimensional anatomical parameters of tracheids.