Functional diversity of leaf nitrogen concentrations drives grassland carbon fluxes
| Autor: | Annette Gockele, Christophe Escape, Clément Piel, Gerd Gleixner, Dörte Bachmann, Nina Buchmann, Arthur Gessler, Anke Hildebrandt, Christiane Roscher, Damien Landais, Sébastien Devidal, Alexandru Milcu, Markus Guderle, Olivier Ravel, Jacques Roy |
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| Přispěvatelé: | Écotron Européen de Montpellier, Centre National de la Recherche Scientifique (CNRS), German Center for Integrative Biodiversity Research (iDiv) Halle-Jena- Leipzig, Leipzig, Germany, Leibniz-Zentrum für Agrarlandschaftsforschung = Leibniz Centre for Agricultural Landscape Research (ZALF), Procédés, Matériaux et Energie Solaire (PROMES), Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Institute of Agricultural Sciences [Zürich], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Max Planck Institute for Biogeochemistry (MPI-BGC), Max-Planck-Gesellschaft, Chair of Hydrogeology, Institute for Geosciences, Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany] |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Canopy
[SDE.MCG]Environmental Sciences/Global Changes Biodiversity chemistry.chemical_element Grassland Carbon Cycle Ecosystem Water-use efficiency Ecology Evolution Behavior and Systematics ComputingMilieux_MISCELLANEOUS geography geography.geographical_feature_category Ecology food and beverages Water Vegetation 15. Life on land Plants Nitrogen Carbon Plant Leaves Agronomy chemistry 13. Climate action Environmental science [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Ecology Letters Ecology Letters, Wiley, 2014, 17 (4), pp.435-444. ⟨10.1111/ele.12243⟩ |
| ISSN: | 1461-023X 1461-0248 |
| DOI: | 10.1111/ele.12243⟩ |
| Popis: | Little is known about the role of plant functional diversity for ecosystem-level carbon (C) fluxes. To fill this knowledge gap, we translocated monoliths hosting communities with four and 16 sown species from a long-term grassland biodiversity experiment (‘The Jena Experiment’) into a controlled environment facility for ecosystem research (Ecotron). This allowed quantifying the effects of plant diversity on ecosystem C fluxes as well as three parameters of C uptake efficiency (water and nitrogen use efficiencies and apparent quantum yield). By combining data on ecosystem C fluxes with vegetation structure and functional trait-based predictors, we found that increasing plant species and functional diversity led to higher gross and net ecosystem C uptake rates. Path analyses and light response curves unravelled the diversity of leaf nitrogen concentration in the canopy as a key functional predictor of C fluxes, either directly or indirectly via LAI and aboveground biomass. |
| Databáze: | OpenAIRE |
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