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| DOI: | 10.1016/j.soilbio.2019.01.026 |
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| Web URL(s): | https://www.sciencedirect.com/science/article/pii/S0038071719300343
Last checked: 04/24/2019
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https://www.sciencedirect.com/science/article/pii/S0038071719300343/pdfft
Last checked: 04/29/2019
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Buttler, Alexandre;
Mariotte, Pierre;
Meisser, Marco;
Guillaume, Thomas;
Signarbieux, Constant;
Vitra, Amarante;
Preux, Sara;
Mercier, Géraldine;
Quezada, Juan;
Bragazza, Luca;
Gavazov, Konstantin |
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| Author Affiliation: | Buttler: School of Architecture, Civil and Environmental Engineering, Laboratory of Ecological Systems (ECOS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland and Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Lausanne, Switzerland and Laboratoire de Chrono-Environnement, UMR CNRS 6249, UFR des Sciences et Techniques, Université de Franche-Comté, Besançon, France; Mariotte, Guillaume, Signarbieux, Vitra, Preux, Mercier, Quezada, and Gavazov: School of Architecture, Civil and Environmental Engineering, Laboratory of Ecological Systems (ECOS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland and Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Lausanne, Switzerland; Meisser: Agroscope, Grazing Systems, Nyon, Switzerland; Bragazza: School of Architecture, Civil and Environmental Engineering, Laboratory of Ecological Systems (ECOS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland and Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Lausanne, Switzerland and Department of Life Science and Biotechnologies, University of Ferrara, Ferrara, Italy |
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| Title: | Drought-induced decline of productivity in the dominant grassland species Lolium perenne L. depends on soil type and prevailing climatic conditions |
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| Source: | Soil Biology & Biochemistry. Vol. 132, May 2019, p. 47-57. |
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| Publishing Information: | Amsterdam, The Netherlands: Elsevier |
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| # of Pages: | 11 |
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| Related Web URL: | https://www.sciencedirect.com/science/article/pii/S0038071719300343#abs0010
Last checked: 04/24/2019
Notes: Abstract only |
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| Keywords: | TIC Keywords: Climatic factors; Drought management; Drought stress; Growth period; Lolium perenne; Productivity; Soil types
Author-Supplied Keywords: Climate change; Rain shelter; Microbial biomass; Microbial activity; Organic matter; Fertility
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| Abstract/Contents: | "Severe constraints on grasslands productivity, ecosystem functions, goods and services are expected to result from projected warming and drought scenarios under climate change. Negative effects on vegetation can be mediated via soil fertility and water holding capacity, though specific mechanisms are fairly complex to generalise. In field drought experiments, it can be difficult to disentangle a drought effect per se from potential confounding effects related to vegetation or soil type, both varying along with climate. Furthermore, there is the need to distinguish the long-term responses of vegetation and soil to gradual climate shift from responses to extreme and stochastic climatic events. Here we address these limitations by means of a factorial experiment using a single dominant grassland species (the perennial ryegrass Lolium perenne L.) grown as a phytometer on two soils types with contrasted physicochemical characteristics, placed at two elevation sites along a climatic gradient, and exposed to early or late-season drought during the plant growing season. Warmer site conditions and reduced precipitation along the elevational gradient affected biogeochemistry and plant productivity more than the drought treatments alone, despite the similar magnitude in volumetric soil moisture reduction. Soil type, as defined here by its organic matter content (SOM), modulated the drought response in relation to local site climatic conditions and, through changes in microbial biomass and activity, determined the seasonal above and belowground productivity of L. perenne. More specifically, our combined uni- and multivariate analyses demonstrate that microbes in a loamy soil with low SOM are strongly responsive to change in climate, as indicated by a simultaneous increase in their C,N,P pools at high elevation with cooler temperatures and wetter soils. Contrastingly, microbes in a clay-loam soil with high SOM are mainly sensitive to temperature, as indicated by a strong increase in microbial biomass under warmer temperatures at low elevation and a concomitant increase in C:N, C:P and N:P ratios. High SOM promoted a better annual yield of the phytometer grass under warmer climate and the effect of drought on productivity was transient. In contrast, low SOM reduced cumulative yield under warmer conditions and root production strongly decreased, enduring a lasting drought effect. Microbes in soils with high organic matter remained more active during warmer and drier conditions, ensuring soil fertility and stimulating a higher overall plant nutrient availability and productivity. Our study highlights the important role of soil type for grassland responses to both stochastic climatic extremes and long-term climate change. Management practices enhancing SOM accumulation via organic residue incorporation seem a promising way to mitigate the effects of increased temperature and drought on plants and soil microbes alike promoting thereby a sustainable ecosystem functioning." |
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| Language: | English |
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| References: | 51 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Buttler, A., P. Mariotte, M. Meisser, T. Guillaume, C. Signarbieux, A. Vitra, et al. 2019. Drought-induced decline of productivity in the dominant grassland species Lolium perenne L. depends on soil type and prevailing climatic conditions. Soil Biol. Biochem. 132:p. 47-57. |
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| DOI: 10.1016/j.soilbio.2019.01.026 |
| Web URL(s):
https://www.sciencedirect.com/science/article/pii/S0038071719300343
Last checked: 04/24/2019
Requires: JavaScript
Access conditions: Item is within a limited-access website
https://www.sciencedirect.com/science/article/pii/S0038071719300343/pdfft
Last checked: 04/29/2019
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2217194 |
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