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Globally consistent...
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Hovenden, Mark J.
(author)
Globally consistent influences of seasonal precipitation limit grassland biomass response to elevated CO2
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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2019-02-08
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Springer Science and Business Media LLC,2019
Numbers
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LIBRIS-ID:oai:gup.ub.gu.se/277743
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https://gup.ub.gu.se/publication/277743URI
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https://doi.org/10.1038/s41477-018-0356-xDOI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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© 2019, The Author(s), under exclusive licence to Springer Nature Limited. Rising atmospheric carbon dioxide concentration should stimulate biomass production directly via biochemical stimulation of carbon assimilation, and indirectly via water savings caused by increased plant water-use efficiency. Because of these water savings, the CO 2 fertilization effect (CFE) should be stronger at drier sites, yet large differences among experiments in grassland biomass response to elevated CO 2 appear to be unrelated to annual precipitation, preventing useful generalizations. Here, we show that, as predicted, the impact of elevated CO 2 on biomass production in 19 globally distributed temperate grassland experiments reduces as mean precipitation in seasons other than spring increases, but that it rises unexpectedly as mean spring precipitation increases. Moreover, because sites with high spring precipitation also tend to have high precipitation at other times, these effects of spring and non-spring precipitation on the CO 2 response offset each other, constraining the response of ecosystem productivity to rising CO 2 . This explains why previous analyses were unable to discern a reliable trend between site dryness and the CFE. Thus, the CFE in temperate grasslands worldwide will be constrained by their natural rainfall seasonality such that the stimulation of biomass by rising CO 2 could be substantially less than anticipated.
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Leuzinger, Sebastian
(author)
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Newton, Paul C.D.
(author)
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Fletcher, Andrew
(author)
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Fatichi, Simone
(author)
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Lüscher, Andreas
(author)
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Reich, Peter B.
(author)
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Andresen, Louise C.,1974Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xandrl
(author)
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Beier, Claus
(author)
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Blumenthal, Dana M.
(author)
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Chiariello, Nona R.
(author)
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Dukes, Jeffrey S.
(author)
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Kellner, Juliane
(author)
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Hofmockel, Kirsten
(author)
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Niklaus, Pascal A.
(author)
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Song, Jian
(author)
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Wan, Shiqiang
(author)
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Classen, Aimée T.
(author)
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Langley, J. Adam
(author)
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Göteborgs universitetInstitutionen för geovetenskaper
(creator_code:org_t)
Related titles
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In:Nature Plants: Springer Science and Business Media LLC5, s. 167-1732055-0278
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Hovenden, Mark J ...
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Leuzinger, Sebas ...
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Newton, Paul C.D ...
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Fletcher, Andrew
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Fatichi, Simone
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Lüscher, Andreas
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Reich, Peter B.
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Andresen, Louise ...
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Beier, Claus
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Blumenthal, Dana ...
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Chiariello, Nona ...
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Dukes, Jeffrey S ...
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Kellner, Juliane
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Hofmockel, Kirst ...
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Niklaus, Pascal ...
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Song, Jian
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Wan, Shiqiang
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Classen, Aimée T ...
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Langley, J. Adam
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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Nature Plants
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University of Gothenburg