Temperature-Driven onset and light quality-linked senescence in Fagus sylvatica phenology
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00639369" target="_blank" >RIV/86652079:_____/25:00639369 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43410/25:43927101
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0168192325004538" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0168192325004538</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.agrformet.2025.110834" target="_blank" >10.1016/j.agrformet.2025.110834</a>
Alternative languages
Result language
angličtina
Original language name
Temperature-Driven onset and light quality-linked senescence in Fagus sylvatica phenology
Original language description
Understanding phenology is essential to assessing forest responses to climate change, yet most research focuses on leaf development and the onset of the growing season. Less is known about the end-of-season dynamics and their physiological underpinnings. Here, we examined the seasonal timing and coordination of leaf phenology, cambial activity, xylem and phloem formation, sap flow, and gross primary production (GPP) in European beech (Fagus sylvatica L.) from 2018 to 2022 in the Czech Republic. Spring phenology, including budbreak, cambial reactivation, and GPP onset, were driven by air temperatures approaching 10 ◦ C, with a consistent initiation naround DOY 112. In European beech, light appears to function as a regulatory cue, acting as a safeguard against premature budburst, whereas temperature operates as the principal driver of phenological development. Sap flow followed shortly thereafter. In contrast, autumn phenology showed strong sensitivity to solar radiation quality—particularly the clearness index—highlighting the role of spectral light composition in driving senescence. Specifically, 10 % leaf colouring and the onset of phloem compression exhibited peak correlations with late-summer cloudiness (r = 0.97–0.99). Stem growth initiation, measured by dendrometers, lagged two weeks behind xylem enlargement, but the cessation of radial growth (90 %) precisely coincided with the end of secnondary wall thickening. These findings reveal distinct spring and autumn triggers—thermal versus radiative—shaping phenology and underline the need to include ecophysiological indicators in phenology modelling to better represent forest functioning and carbon cycling under climate change.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40102 - Forestry
Result continuities
Project
<a href="/en/project/LM2023048" target="_blank" >LM2023048: Czech Carbon Observation System</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Agricultural and Forest Meteorology
ISSN
0168-1923
e-ISSN
1873-2240
Volume of the periodical
375
Issue of the periodical within the volume
Dec.
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
110834
UT code for WoS article
001574074600001
EID of the result in the Scopus database
2-s2.0-105016013656