Seasonal time-course of the above ground biomass production efficiency in beech trees (Fagus sylvatica L.)

Autor: Laura Heid, André Granier, Bernard Longdoz, Christophe Calvaruso, Sébastien Conil, Cyrille B. K. Rathgeber, Anjy Andrianantenaina, Marie-Pierre Turpault
Přispěvatelé: SILVA (SILVA), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL)-AgroParisTech, Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA), Unité de recherche Biogéochimie des Ecosystèmes Forestiers (BEF), Institut National de la Recherche Agronomique (INRA), ANR (ANR-12-LABXARBRE-01), Ecofor, Allenvi, French national research infrastructure ANAEEF, Institut National de la Recherche Agronomique (INRA)-AgroParisTech-Université de Lorraine (UL), SILVA ( SILVA ), Institut National de la Recherche Agronomique ( INRA ) -AgroParisTech-Université de Lorraine ( UL ), Agence Nationale pour la Gestion des Déchets Radioactifs ( ANDRA ), Unité de recherche Biogéochimie des Ecosystèmes Forestiers ( BEF ), Institut National de la Recherche Agronomique ( INRA )
Rok vydání: 2018
Předmět:
0106 biological sciences
biomasse forestière
010504 meteorology & atmospheric sciences
Forest management
brown calcareous soil
Eddy covariance
fagus sylvatica
facteur édaphique
variation intra annuelle
01 natural sciences
Tree growth
Fagus sylvatica
european beech
Forest ecology
eddy covariance
broadleaved forests
allocation du carbone
Beech
0105 earth and related environmental sciences
[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology
seasonal variation
Biomass (ecology)
Ecology
biology
sol brun calcaire
production primaire brute
Diameter at breast height
Primary production
Carbon allocation
production primaire
Forestry
alocrisol
15. Life on land
biology.organism_classification
Biomass production
forêt feuillue
variation saisonnière
Beech forest
13. Climate action
Environmental science
GPP
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Wood density
densité du bois
010606 plant biology & botany
Zdroj: Annals of Forest Science
Annals of Forest Science, Springer Nature (since 2011)/EDP Science (until 2010), 2018, 75 (1), pp.1-14. ⟨10.1007/s13595-018-0707-9⟩
Annals of Forest Science, Springer Verlag/EDP Sciences, 2018, 75 (1), pp.1-14. ⟨10.1007/s13595-018-0707-9⟩
Annals of Forest Science, Springer Verlag/EDP Sciences, 2018, 75 (1), pp.1-14. 〈10.1007/s13595-018-0707-9〉
ISSN: 1297-966X
1286-4560
DOI: 10.1007/s13595-018-0707-9
Popis: Key message In order to record the seasonal changes in aboveground biomass production (trunk and branches) in a forest, changes in wood density must be taken into account. A 60-year-old beech forest displayed a large intra-annual variability in its aboveground woody biomass production efficiency. This variation followed a seasonal trend with a maximum during the summer while gross primary production was rather low.Context In the current context of land use and climate change, there is a need to precisely quantify the carbon (C) balance of forest ecosystems, and more specifically, of C allocation to tree compartments.Aims We quantified the seasonal changes in the aboveground biomass production (aBP) of a beech forest growing on two different soils: an alocrisol and a calci-brunisol. In addition, for the alocrisol ecosystem, we assessed the existence and degree of intra-annual variability in the ratio of wood aBP to gross primary production (GPP), i.e., the wood aBP efficiency.Methods The study site is a 60-year-old beech forest in northeastern France. An eddy covariance tower records continuously net ecosystem exchange. To investigate the temporal changes in aBP, mini-cores were drilled and diameter at breast height measurements were taken on a monthly basis from 45 trees for both stands studied over 2014.Results A clear difference in aBP was observed between the two soils with the alocrisol being more productive than the calcibrunisol. For the alocrisol, both woody aBP and GPP changed over the course of the year, reaching peak values during June (6 and 12.5 gC m(-2) day(-1), respectively). Wood applied bias photon-to-current efficiency aboveground Biomass Production Efficiency (aBPE) also showed important intra-annual variations, ranging from 0.09 in September to 0.58 in July. Wood density varied throughout the year, and not taking it into account would have led to an overestimation of aBP by as much as 20% in April and May.Conclusion Our study highlights the importance of taking wood density into account for intra-annual studies of aBP. Wood aBPE cannot be considered as constant as it fluctuated from 0.09 to 0.58 throughout the year for an annual value of 0.34. The potential error in wood aBPE stemming from not taking these changes into account amounts to 15%.
Databáze: OpenAIRE
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