No winter halt in belowground wood growth of four angiosperm deciduous tree species
Marchand, Lorène Julia (University of Antwerp. Centre of Excellence PLECO. Department of Biology)
Gričar, Jožica (Slovenian Forestry Institute. Department of Forest Physiology and Genetics)
Zuccarini, Paolo (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Dox, Inge (University of Antwerp. Department of Biology)
Bertold, Mariën (University of Antwerp. Department of Biology)
Verlinden, Melanie (University of Antwerp. Department of Biology)
Heinecke, Thilo (University of Antwerp. Department of Biology)
Prislan, Peter (Slovenian Forestry Institute)
Marie, Guillaume (University of Antwerp. Department of Biology)
Lange, Holger (Norwegian Institute of Bioeconomy Research)
Van den Bulcke, Jan (University of Ghent. Department of Environment)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Fonti, Patrick (Swiss Federal Institute for Forest. Snow and Landscape Research)
Campioli, Matteo (University of Antwerp. Department of Biology)

Data:	2025
Resum:	In the temperate zone, deciduous trees exhibit clear above-ground seasonality, marked by a halt in wood growth that represents the completion of wood formation in autumn and reactivation in spring. However, the growth seasonality of below-ground woody organs, such as coarse roots, has been largely overlooked. Here we use tree monitoring data and pot experiments involving saplings to examine the late-season xylem development of stem and coarse roots with leaf phenology in four common deciduous tree species in Western Europe. Coarse-roots wood growth continued throughout the winter whereas stem wood growth halted in autumn, regardless of the tree species, experimental setting or location. Our results do not indicate a clear temperature constraint on below-ground wood growth, even during prolonged periods with soil temperatures lower than 3 °C. The continuous differentiation of xylem root cells in autumn and winter suggests that the non-growing season does not exist sensu stricto for all woody organs of angiosperm deciduous tree species of the temperate zone. Our findings hold implications for understanding tree functioning, in particular the seasonal wood formation, the environmental controls of tree growth and the carbon reserves dynamics.
Ajuts:	European Commission 714916
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Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Forest ecology ; Plant ecology
Publicat a:	Nature ecology & evolution, Vol. 9, issue 3 (March 2025) , p. 386-394, ISSN 2397-334X

DOI: 10.1038/s41559-024-02602-6

Postprint 25 p, 5.8 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
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