PeichlSonnentagWohlfahrtEtAl2013

Référence

Peichl, M., Sonnentag, O., Wohlfahrt, G., Flanagan, L.B., Baldocchi, D.D., Kiely, G., Galvagno, M., Gianelle, D., Marcolla, B., Pio, C., Migliavacca, M., Jones, M.B., Saunders, M. (2013) Convergence of potential net ecosystem production among contrasting C<inf>3</inf> grasslands. Ecology Letters, 16(4):502-512. (Scopus )

Résumé

Metabolic theory and body size constraints on biomass production and decomposition suggest that differences in the intrinsic potential net ecosystem production (NEP<inf>POT</inf>) should be small among contrasting C<inf>3</inf> grasslands and therefore unable to explain the wide range in the annual apparent net ecosystem production (NEP<inf>APP</inf>) reported by previous studies. We estimated NEP<inf>POT</inf> for nine C<inf>3</inf> grasslands under contrasting climate and management regimes using multiyear eddy covariance data. NEP<inf>POT</inf> converged within a narrow range, suggesting little difference in the net carbon dioxide uptake capacity among C<inf>3</inf> grasslands. Our results indicate a unique feature of C<inf>3</inf> grasslands compared with other terrestrial ecosystems and suggest a state of stability in NEP<inf>POT</inf> due to tightly coupled production and respiration processes. Consequently, the annual NEP<inf>APP</inf> of C<inf>3</inf> grasslands is primarily a function of seasonal and short-term environmental and management constraints, and therefore especially susceptible to changes in future climate patterns and associated adaptation of management practices. © 2013 Blackwell Publishing Ltd/CNRS.

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@ARTICLE { PeichlSonnentagWohlfahrtEtAl2013,
    AUTHOR = { Peichl, M. and Sonnentag, O. and Wohlfahrt, G. and Flanagan, L.B. and Baldocchi, D.D. and Kiely, G. and Galvagno, M. and Gianelle, D. and Marcolla, B. and Pio, C. and Migliavacca, M. and Jones, M.B. and Saunders, M. },
    TITLE = { Convergence of potential net ecosystem production among contrasting C<inf>3</inf> grasslands },
    JOURNAL = { Ecology Letters },
    YEAR = { 2013 },
    VOLUME = { 16 },
    NUMBER = { 4 },
    PAGES = { 502-512 },
    NOTE = { cited By 14 },
    ABSTRACT = { Metabolic theory and body size constraints on biomass production and decomposition suggest that differences in the intrinsic potential net ecosystem production (NEP<inf>POT</inf>) should be small among contrasting C<inf>3</inf> grasslands and therefore unable to explain the wide range in the annual apparent net ecosystem production (NEP<inf>APP</inf>) reported by previous studies. We estimated NEP<inf>POT</inf> for nine C<inf>3</inf> grasslands under contrasting climate and management regimes using multiyear eddy covariance data. NEP<inf>POT</inf> converged within a narrow range, suggesting little difference in the net carbon dioxide uptake capacity among C<inf>3</inf> grasslands. Our results indicate a unique feature of C<inf>3</inf> grasslands compared with other terrestrial ecosystems and suggest a state of stability in NEP<inf>POT</inf> due to tightly coupled production and respiration processes. Consequently, the annual NEP<inf>APP</inf> of C<inf>3</inf> grasslands is primarily a function of seasonal and short-term environmental and management constraints, and therefore especially susceptible to changes in future climate patterns and associated adaptation of management practices. © 2013 Blackwell Publishing Ltd/CNRS. },
    AFFILIATION = { Swedish University of Agricultural Sciences, Department of Forest Ecology and Management, Umeå, Sweden; University College Cork, Center for Hydrology, Micrometeorology and Climate Change, Department of Civil and Environmental Engineering, Cork, Ireland; Université de Montréal, Département de Géographie, Montréal, QC, Canada; Universität Innsbruck, Institut für Ökologie, Innsbruck, Austria; University of Lethbridge, Department of Biological Sciences, Lethbridge, AB, Canada; University of California at Berkeley, Department of Environmental Science, Policy and Management, Ecosystem Sciences Division, Berkeley, CA, United States; Environmental Protection Agency of Aosta Valley, ARPA Valle d'Aosta, Climate Change Unit, Aosta, Italy; Fondazione Edmund Mach, IASMA Research and Innovation Centre, Sustainable Agro-ecosystems and Bioresources Department, San Michele all'Adige, TN, Italy; University of Aveiro, CESAM and Department of Environment, Aveiro, Portugal; European Commission, Joint Research Centre (JRC), Institute for Environment and Sustainability, Climate Risk Management Unit, Ispra, VA, Italy; University of Dublin, Botany Department, Trinity College, Dublin, Ireland; University College Dublin, School of Biology and Environmental Science, Dublin, Ireland; Fondazione Edmund Mach, IASMA Research and Innovation Centre, FOXLAB, San Michele all'Adige, TN, Italy; Swedish University of Agricultural Sciences, Department of Forest Ecology and Management, Umeå 901 83, Sweden },
    AUTHOR_KEYWORDS = { Climate; Ecosystem traits; Eddy covariance; Grassland ecosystem functioning; Inter-comparison; Management practices; Metabolic theory },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/ele.12075 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931749090&doi=10.1111%2fele.12075&partnerID=40&md5=eefc79d6fe5c053b4c7546f16366d84e },
}

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