Journal of Siberian Federal University. Biology / Climate Response of Anatomical Parameters of Pinus sylvestris L. Trees along the Latitudinal Gradient in Central Siberia

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Issue
Journal of Siberian Federal University. Biology. 2023 16 (4)
Authors
Khotcinskaia, Kseniia I.; Tabakova, Maria A.; Sergeeva, Oksana V.; Koshurnikova, Natalia N.; Arzac, Alberto
Contact information
Khotcinskaia, Kseniia I. : Siberian Federal University Krasnoyarsk, Russian Federation; ; ORCID: 000-0002-4344-714X; Tabakova, Maria A. : Siberian Federal University Krasnoyarsk, Russian Federation; ORCID: 0000-0001-5034-9313; Sergeeva, Oksana V.: Siberian Federal University Krasnoyarsk, Russian Federation; ORCID: 0000-0002-7978-0737; Koshurnikova, Natalia N. : Siberian Federal University Krasnoyarsk, Russian Federation; ORCID: 0000-0003-0175-873X; Arzac, Alberto: Siberian Federal University Krasnoyarsk, Russian Federation; ORCID: 0000-0002-3361-5349
Keywords
tree growth; tree-ring chronology; climate change; wood anatomy
Abstract

Russian forests constitute half of the world’s boreal forests, and they are now experiencing unprecedented warming rates. Climate conditions significantly influence tree secondary growth and cell formation, shifting from temperature limitation at northern latitudes to water limitation in the south. The assessing of this impact is critical to understanding the potential response of Russian forests to the ongoing climate change. Here, we evaluated the effect of contrasting climate conditions on the variability in tree ring width and anatomical traits (i.e. radial lumen diameter, radial cell wall thickness, cell density, and relative anatomical wood density) of Scots pine at four sites along a latitudinal transect in Central Siberia over the 1966–2018 period. The results showed the higher cell production and secondary growth at the southern sites despite the strong temperature-induced drought during summer, whereas the northern site showed the lower cell production and tree growth. Secondary growth and anatomical traits showed an effect of climate conditions at all the sites. However, the intensity, timing, and duration of the climate signals varied among the traits, being earlier for the tree-ring width, longer for the cell lumen diameter, and later in the latewood cells related traits. Moreover, the mean relative anatomical wood density (a parameter derived from anatomical traits) proved to be a good indicator for climate, showing strong response to both temperature and precipitation at the end of the growing season. Our results suggest that future climate conditions may potentially negatively affect southern sites while promoting a wider growth in northern latitudes

Pages
487–505
EDN
MYRGCF
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/152406

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