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231223s2007 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2007.02122.x
|2 doi
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|e rakwb
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|a eng
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| 100 |
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|a De Boeck, Hans J
|e verfasserin
|4 aut
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|a How do climate warming and species richness affect CO2 fluxes in experimental grasslands?
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 28.09.2007
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|a Date Revised 14.04.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a This paper presents the results of 2 yr of CO(2) flux measurements on grassland communities of varying species richness, exposed to either the current or a warmer climate. We grew experimental plant communities containing one, three or nine grassland species in 12 sunlit, climate-controlled chambers. Half of these chambers were exposed to ambient air temperatures, while the other half were warmed by 3 degrees C. Equal amounts of water were added to heated and unheated communities, implying drier soils if warming increased evapotranspiration. Three main CO(2) fluxes (gross photosynthesis, above-ground and below-ground respiration) were measured multiple times per year and reconstructed hourly or half-hourly by relating them to their most important environmental driver. While CO(2) outputs through respiration were largely unchanged under warming, CO(2) inputs through photosynthesis were lowered, especially in summer, when heat and drought stress were higher. Above-ground CO(2) fluxes were significantly increased in multispecies communities, as more complementary resource use stimulated productivity. Finally, effects of warming appeared to be smallest in monocultures. This study shows that in a future warmer climate the CO(2) sink capacity of temperate grasslands could decline, and that such adverse effects are not likely to be mitigated by efforts to maintain or increase species richness
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Soil
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
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|a Carbon Dioxide
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|a 142M471B3J
|2 NLM
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|a Lemmens, Catherine M H M
|e verfasserin
|4 aut
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|a Vicca, Sara
|e verfasserin
|4 aut
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|a Van den Berge, Joke
|e verfasserin
|4 aut
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| 700 |
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|a Van Dongen, Stefan
|e verfasserin
|4 aut
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| 700 |
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|a Janssens, Ivan A
|e verfasserin
|4 aut
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| 700 |
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|a Ceulemans, Reinhart
|e verfasserin
|4 aut
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| 700 |
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|a Nijs, Ivan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1990
|g 175(2007), 3 vom: 01., Seite 512-522
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:175
|g year:2007
|g number:3
|g day:01
|g pages:512-522
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|u http://dx.doi.org/10.1111/j.1469-8137.2007.02122.x
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