Functional composition has stronger impact than species richness on carbon gain and allocation in experimental grasslands
| Autor: | Markus Lange, Damien Landais, Tanja Strecker, Arthur Gessler, Stefan Karlowsky, Olivier Ravel, Annette Jesch, Perla Griselle Mellado-Vázquez, Nina Buchmann, Christiane Roscher, Dörte Bachmann, Alexandru Milcu, Jacques Roy, Gerd Gleixner |
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| Přispěvatelé: | Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Écotron Européen de Montpellier, Centre National de la Recherche Scientifique (CNRS), Inst Landscape Biogeochem, Leibniz-Zentrum für Agrarlandschaftsforschung = Leibniz Centre for Agricultural Landscape Research (ZALF), 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, Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Écotron Européen de Montpellier - UPS 3248, Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud]) |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Canopy Leaves Sucrose Biodiversity Plant Science Disaccharides Biochemistry 01 natural sciences Starches Grassland Soil chemistry.chemical_compound Biomass Photosynthesis ComputingMilieux_MISCELLANEOUS Carbon Isotopes 0303 health sciences Biomass (ecology) Multidisciplinary geography.geographical_feature_category Ecology Organic Compounds Plant Biochemistry Plant Anatomy food and beverages Chemistry Physical Sciences Shoot [SDE]Environmental Sciences Medicine Research Article Stomatal conductance Ecological Metrics Nitrogen Science Carbohydrates Biology Poaceae complex mixtures 010603 evolutionary biology Species diversity 03 medical and health sciences Nitrogen cycle 030304 developmental biology geography Ecology and Environmental Sciences Organic Chemistry Chemical Compounds Biology and Life Sciences Species Diversity 15. Life on land Plant Leaves chemistry Agronomy Species richness [SDE.BE]Environmental Sciences/Biodiversity and Ecology Sugars 010606 plant biology & botany |
| Zdroj: | PLoS ONE PLoS ONE, 2019, 14 (1), pp.e0204715. ⟨10.1371/journal.pone.0204715⟩ PLoS ONE, Public Library of Science, 2019, 14 (1), pp.e0204715. ⟨10.1371/journal.pone.0204715⟩ PLoS One PLoS ONE, 14 (1) PLoS ONE, Vol 14, Iss 1, p e0204715 (2019) |
| ISSN: | 1932-6203 |
| Popis: | Numerous experiments have shown positive diversity effects on plant productivity, but little is known about related processes of carbon gain and allocation. We investigated these processes in a controlled environment (Montpellier European Ecotron) applying a continuous 13CO2 label for three weeks to 12 soil-vegetation monoliths originating from a grassland biodiversity experiment (Jena Experiment) and representing two diversity levels (4 and 16 sown species). Plant species richness did not affect community- and species-level 13C abundances neither in total biomass nor in non-structural carbohydrates (NSC). Community-level 13C excess tended to be higher in the 16-species than in the 4-species mixtures. Community-level 13C excess was positively related to canopy leaf nitrogen (N), i.e. leaf N per unit soil surface. At the species level shoot 13C abundances varied among plant functional groups and were larger in legumes and tall herbs than in grasses and small herbs and correlated positively with traits as leaf N concentrations, stomatal conductance and shoot height. The 13C abundances in NSC were larger in transport sugars (sucrose, raffinose-family oligosaccharides) than in free glucose, fructose and compounds of the storage pool (starch) suggesting that newly assimilated carbon is to a small portion allocated to storage. Our results emphasize that the functional composition of communities is key in explaining carbon assimilation in grasslands. |
| Databáze: | OpenAIRE |
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