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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12044
|2 doi
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|a pubmed24n0744.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Battipaglia, Giovanna
|e verfasserin
|4 aut
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| 245 |
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|a Elevated CO₂ increases tree-level intrinsic water use efficiency
|b insights from carbon and oxygen isotope analyses in tree rings across three forest FACE sites
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|c 2013
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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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|a Date Completed 21.05.2013
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|a Date Revised 20.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a Elevated CO₂ increases intrinsic water use efficiency (WUE(i) ) of forests, but the magnitude of this effect and its interaction with climate is still poorly understood. We combined tree ring analysis with isotope measurements at three Free Air CO₂ Enrichment (FACE, POP-EUROFACE, in Italy; Duke FACE in North Carolina and ORNL in Tennessee, USA) sites, to cover the entire life of the trees. We used δ¹³C to assess carbon isotope discrimination and changes in water-use efficiency, while direct CO₂ effects on stomatal conductance were explored using δ¹⁸O as a proxy. Across all the sites, elevated CO₂ increased ¹³C-derived water-use efficiency on average by 73% for Liquidambar styraciflua, 77% for Pinus taeda and 75% for Populus sp., but through different ecophysiological mechanisms. Our findings provide a robust means of predicting water-use efficiency responses from a variety of tree species exposed to variable environmental conditions over time, and species-specific relationships that can help modelling elevated CO₂ and climate impacts on forest productivity, carbon and water balances
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Carbon Isotopes
|2 NLM
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|a Oxygen Isotopes
|2 NLM
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|a Water
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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 Saurer, Matthias
|e verfasserin
|4 aut
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|a Cherubini, Paolo
|e verfasserin
|4 aut
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| 700 |
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|a Calfapietra, Carlo
|e verfasserin
|4 aut
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| 700 |
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|a McCarthy, Heather R
|e verfasserin
|4 aut
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|a Norby, Richard J
|e verfasserin
|4 aut
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|a Francesca Cotrufo, M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 197(2013), 2 vom: 01. Jan., Seite 544-554
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:197
|g year:2013
|g number:2
|g day:01
|g month:01
|g pages:544-554
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|u http://dx.doi.org/10.1111/nph.12044
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