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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15721
|2 doi
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|a pubmed25n0982.xml
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|a (NLM)30840319
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Drake, John E
|e verfasserin
|4 aut
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| 245 |
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|a Climate warming and tree carbon use efficiency in a whole-tree 13 CO2 tracer study
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|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 27.02.2020
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2019 May;222(3):1167-1170. doi: 10.1111/nph.15805. - PMID 30972822
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|a Citation Status MEDLINE
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|a © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
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|a Autotrophic respiration is a major driver of the global C cycle and may contribute a positive climate warming feedback through increased atmospheric concentrations of CO2 . The extent of this feedback depends on plants' ability to acclimate respiration to maintain a constant carbon use efficiency (CUE). We quantified respiratory partitioning of gross primary production (GPP) and CUE of field-grown trees in a long-term warming experiment (+3°C). We delivered a 13 C-CO2 pulse to whole tree crowns and chased that pulse in the respiration of leaves, whole crowns, roots, and soil. We also measured the isotopic composition of soil microbial biomass and the respiration rates of leaves and whole crowns. We documented homeostatic respiratory acclimation of foliar and whole-crown respiration rates; the trees adjusted to experimental warming such that leaf-level respiration rates were not increased. Experimental warming had no detectable impact on respiratory partitioning or mean residence times. Of the 13 C label acquired by the trees, aboveground respiration consumed 10%, belowground respiration consumed 40%, and the remaining 50% was retained. Experimental warming of +3°C did not alter respiratory partitioning at the scale of entire trees, suggesting that complete acclimation of respiration to warming is likely to dampen a positive climate warming feedback
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a autotrophic respiration
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|a carbon isotope
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| 650 |
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4 |
|a carbon use efficiency (CUE)
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| 650 |
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|a climate warming
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| 650 |
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|a pulse−chase
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| 650 |
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4 |
|a tree
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| 650 |
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|a Carbon Isotopes
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 650 |
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|a Carbon Dioxide
|2 NLM
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| 650 |
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|a 142M471B3J
|2 NLM
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| 650 |
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|a Carbon-13
|2 NLM
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| 650 |
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7 |
|a FDJ0A8596D
|2 NLM
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| 700 |
1 |
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|a Furze, Morgan E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tjoelker, Mark G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Carrillo, Yolima
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Barton, Craig V M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pendall, Elise
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1984
|g 222(2019), 3 vom: 15. Mai, Seite 1313-1324
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:222
|g year:2019
|g number:3
|g day:15
|g month:05
|g pages:1313-1324
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| 856 |
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|u http://dx.doi.org/10.1111/nph.15721
|3 Volltext
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