High temperatures constrain latewood formation in Larix gmelinii xylem in boreal forests

Autor: Yuting Jin, Junxia Li, Xueping Bai, Ying Zhao, Di Cui, Zhenju Chen
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Global Ecology and Conservation, Vol 30, Iss , Pp e01767- (2021)
Druh dokumentu: article
ISSN: 2351-9894
DOI: 10.1016/j.gecco.2021.e01767
Popis: In trees, both radial growth and earlywood or latewood differentiation of xylem can reflect responses not only to internal stimuli but also to changes in the external environment. Here, we examined the effect of age and environment on the proportion of latewood to earlywood (PLE) in Larix gmelinii (Dahurian larch) from boreal forests in Eurasia to gain a better understanding of the influence of climate change on genetically controlled characteristics of tree growth. Distinctive differentiation and interannual changes in growth divergences were dependent on age, whereas the influence of environmental factors was also limited. The low-frequency change in the PLE has a juvenile effect, and the variation is unstable. The proportions of latewood to earlywood changed significantly with age during the first 100 years of life (p
Databáze: Directory of Open Access Journals