caa a22 4500 606220038 CHVBK 20210128101121.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s11104-015-2528-z doi (NATIONALLICENCE)springer-10.1007/s11104-015-2528-z How does soil particulate organic carbon respond to grazing intensity in permanent grasslands? [Elektronische Daten] [Herfurth Damien, Vassal Nathalie, Louault Frédérique, Alvarez Gael, Pottier Julien, Picon-Cochard Catherine, Bosio Isabelle, Carrère Pascal] Background and aims: Modification in grazing intensity causes functional changes in permanent grasslands, e.g. in carbon (C) cycling. However, we still know little about how the soil organic C of permanent grasslands responds to grazing intensity. Methods: In a grassland experiment with three levels of grazing intensity, we monitored root and rhizome C stocks, particulate organic C stocks, total soil C stocks, above-ground net primary production and plant species groups abundance over 7years. A simple model was used to estimate the mortality of roots and rhizomes, decomposition rates of particulate organic C, and C fluxes under different grazing intensities. Results: After 7years, low grazing intensity and no grazing led to a modification in above-ground vegetation (production, plant species composition, nitrogen content) and a reduction in C transferred between roots and particulate organic matter fractions, while the C stocks of root and rhizomes, particulate organic matter and total soil were not significantly affected by grazing intensity. However, particulate organic C showed a strong interannual variability. Conclusion: Particulate organic C could have reacted more slowly than expected to changes in grazing intensity, or a marked interannual variability of particulate organic C stocks, through an increase in decomposition rates in all the grazing treatments, could have slowed down the accumulation of particulate organic C and masked the effect of the grazing intensity treatments. Springer International Publishing Switzerland, 2015 Carbon cycling nationallicence Decomposition rates nationallicence Grassland ecosystem nationallicence Grazing intensity nationallicence Particulate organic matter nationallicence AB : Abandonment treatment nationallicence ANPP : Above-ground net primary production nationallicence BNPP : Below-ground net primary production nationallicence AOM : Aggregated organic matter nationallicence AOC : Aggregated organic carbon nationallicence Cat− : Low cattle grazing intensity treatment nationallicence Cat+ : High cattle grazing intensity treatment nationallicence cPOM : Coarse particulate organic matter nationallicence cPOC : Coarse particulate organic carbon nationallicence DMD : Dry matter digestibility nationallicence fPOM : Fine particulate organic matter nationallicence fPOC : Fine particulate organic carbon nationallicence LSU : Livestock unit nationallicence MRT : Mean residence time nationallicence NC : Nitrogen content nationallicence NIRS : Near infrared spectroscopy nationallicence Damien Herfurth INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Nathalie Vassal INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Frédérique Louault INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Gael Alvarez INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Julien Pottier INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Catherine Picon-Cochard INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Isabelle Bosio INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Pascal Carrère INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut Plant and Soil Springer International Publishing 394/1-2(2015-09-01), 239-255 0032-079X 394:1-2<239 2015 394 11104 https://doi.org/10.1007/s11104-015-2528-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2528-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Damien Herfurth INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Nathalie Vassal INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Frédérique Louault INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Gael Alvarez INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Julien Pottier INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Catherine Picon-Cochard INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Isabelle Bosio INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 700 1- Pascal Carrère INRA, UR874 (Unité de Recherche sur l'Ecosystème Prairial), 5 chemin de Beaulieu, F-63039, Clermont-Ferrand, France aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 394/1-2(2015-09-01), 239-255 0032-079X 394:1-2<239 2015 394 11104