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Naslov:Timeline of autumn phenology in temperate deciduous trees
Avtorji:Dox, Inge (Avtor)
Gričar, Jožica (Avtor)
Marchand, Lorène Julia (Avtor)
Leys, Sebastien (Avtor)
Zuccarini, Paolo (Avtor)
Geron, Charly (Avtor)
Prislan, Peter (Avtor)
Mariën, Bertold (Avtor)
Fonti, Patrick (Avtor)
Lange, Holger (Avtor)
Peñuelas, Josep (Avtor)
Van den Bulcke, Jan (Avtor)
Campioli, Matteo (Avtor)
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo SciVie - Gozdarski inštitut Slovenije
Povzetek:Cessation of xylem formation or wood growth (CWG) and onset of foliar senescence (OFS) are key autumn phenological events in temperate deciduous trees. Their timing is fundamental for development and survival of trees, ecosystem nutrient cycling, the seasonal exchange of matter and energy between the biosphere and atmosphere and affect the impact and feedback of forests to global change. A large-scale experimental effort and improved observational methods have allowed us to compare the timing of CWG and OFS for different deciduous tree species in Western Europe, in particularly silver birch, a pioneer species, and European beech, a late-succession species, at stands of different latitudes, of different levels of site fertility, and for two years with contrasting meteorological and drought conditions i.e., the low-moderately dry 2017 and the extremely dry 2018. Specifically, we tested whether foliar senescence started before, after or concurrently with CWG. OFS and CWG occurred generally between late September and early November, with larger differences across species and sites for OFS. Foliar senescence started concurrently with CWG in most cases, except for the drier 2018 and, for beech, at the coldest site, where OFS occurred significantly later than CWG. Behavior of beech in Spain, the southern edge of its European distribution, was unclear, with no CWG, but very low wood growth at the time of OFS. Our study suggests that OFS is generally triggered by the same drivers of CWG or when wood growth decreases in late summer, indicating an overarching mechanism of sink limitation as a possible regulator of the timing of foliar senescence.
Ključne besede:autumn phenology, xylem formation, foliar senescence, cambium, chlorophyll, radial growth, wood, decidiuous trees, common aspen, common beech, pedunculate oak, silver birch
Leto izida:2020
UDK:630*18:630*8
ISSN pri članku:0829-318X
OceCobissID:27866624 Povezava se odpre v novem oknu
COBISS_ID:13951747 Povezava se odpre v novem oknu
DOI:10.1093/treephys/tpaa058 Povezava se odpre v novem oknu
Število ogledov:657
Število prenosov:484
Datoteke:URL URL - Predstavitvena datoteka, za dostop obiščite https://doi.org/10.1093/treephys/tpaa058
.pdf PDF - Predstavitvena datoteka, prenos (1016,31 KB)
 
Nadgradivo:Tree physiol.
Heron Pub.
 
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Licence

Licenca:CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc/4.0/deed.sl
Opis:Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.
Začetek licenciranja:10.06.2020

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