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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Introduction of temporary grasslands into cropping cycles could be a sustainable management practice leading to increased soil organic carbon (SOC) to contribute to climate change adaption and mitigation. To investigate the impact of temporary grassland management practices on SOC storage of croplands, we used a spatially resolved sampling approach combined with geostatistical analyses across an agricultural experiment. The experiment included blocks (0.4- to 3-ha blocks) of continuous grassland, continuous cropping and temporary grasslands with different durations and N-fertilizations on a 23-ha site in western France. We measured changes in SOC storage over this 9-year experiment on loamy soil and investigated physicochemical soil parameters. In the soil profiles (0–90 cm), SOC stocks ranged from 82.7 to 98.5 t ha−1 in 2005 and from 81.3 to 103.9 t ha−1 in 2014. On 0.4-ha blocks, the continuous grassland increased SOC in the soil profile with highest gains in the first 30 cm, while losses were recorded under continuous cropping. Where temporary grasslands were introduced into cropping cycles, SOC stocks were maintained. These observations were only partly confirmed when changing the scale of observation to 3-ha blocks. At the 3-ha scale, most grassland treatments exhibited both gains and losses of SOC, which could be partly related to soil physicochemical properties. Overall, our data suggest that both management practices and soil characteristics determine if carbon will accumulate in SOC pools. For detailed understanding of SOC changes, a combination of measurements at different scales is necessary.

Details

Title
Monitoring Grassland Management Effects on Soil Organic Carbon—A Matter of Scale
Author
Crème, Alexandra 1 ; Rumpel, Cornelia 2   VIAFID ORCID Logo  ; Malone, Sparkle L 3   VIAFID ORCID Logo  ; Saby, Nicolas P A 4 ; Vaudour, Emmanuelle 5   VIAFID ORCID Logo  ; Decau, Marie-Laure 6 ; Abad Chabbi 7 

 Institut National de Recherche Agronomique et Environnement (INRAE), Pluridisciplinaire Prairies et Plantes Fourragères (UR P3F), 86600 Lusignan, France; [email protected] (A.C.); [email protected] (A.C.); Institut National de Recherche Agronomique et Environnement (INRAE), Écologie Fonctionnelle et Écotoxicologie des Agroécosystèmes (ECOSYS, UMR 1402, INRAE, Agroparistech, UParis-Saclay), 78850 Thiverval-Grignon, France; [email protected]; CNRS, Institut d’Ecologie et des Sciences de l’Environnement Paris, UMR 7618 (SorbonneU, CNRS, UPEC, IRD, INRAE), 78850 Thiverval-Grignon, France 
 CNRS, Institut d’Ecologie et des Sciences de l’Environnement Paris, UMR 7618 (SorbonneU, CNRS, UPEC, IRD, INRAE), 78850 Thiverval-Grignon, France 
 Department of Biological Sciences, Florida International University, 11200 S.W. 8th Street, Miami, FL 33199, USA; [email protected] 
 Institut National de Recherche Agronomique et Environnement (INRAE), US 1106 INFOSOL, 45075 Orleans, France; [email protected] 
 Institut National de Recherche Agronomique et Environnement (INRAE), Écologie Fonctionnelle et Écotoxicologie des Agroécosystèmes (ECOSYS, UMR 1402, INRAE, Agroparistech, UParis-Saclay), 78850 Thiverval-Grignon, France; [email protected] 
 Institut National de Recherche Agronomique et Environnement (INRAE), Fourrages Environnement Ruminants Lusignan (UE 1373 FERLUS), 86600 Lusignan, France; [email protected] 
 Institut National de Recherche Agronomique et Environnement (INRAE), Pluridisciplinaire Prairies et Plantes Fourragères (UR P3F), 86600 Lusignan, France; [email protected] (A.C.); [email protected] (A.C.); Institut National de Recherche Agronomique et Environnement (INRAE), Écologie Fonctionnelle et Écotoxicologie des Agroécosystèmes (ECOSYS, UMR 1402, INRAE, Agroparistech, UParis-Saclay), 78850 Thiverval-Grignon, France; [email protected] 
First page
2016
Publication year
2020
Publication date
2020
Publisher
MDPI AG
e-ISSN
20734395
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2524237320
Copyright
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.