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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2009.02824.x
|2 doi
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|a pubmed24n0627.xml
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|a (DE-627)NLM187972494
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|a (NLM)19383100
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Reich, Peter B
|e verfasserin
|4 aut
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|a Controls on declining carbon balance with leaf age among 10 woody species in Australian woodland
|b do leaves have zero daily net carbon balances when they die?
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|c 2009
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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 30.11.2009
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|a Date Revised 14.04.2021
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2009;183(1):1-3. - PMID 19555367
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|a Citation Status MEDLINE
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|a * Here, we evaluated how increased shading and declining net photosynthetic capacity regulate the decline in net carbon balance with increasing leaf age for 10 Australian woodland species. We also asked whether leaves at the age of their mean life-span have carbon balances that are positive, zero or negative. * The net carbon balances of 2307 leaves on 53 branches of the 10 species were estimated. We assessed three-dimensional architecture, canopy openness, photosynthetic light response functions and dark respiration rate across leaf age sequences on all branches. We used YPLANT to estimate light interception and to model carbon balance along the leaf age sequences. * As leaf age increased to the mean life-span, increasing shading and declining photosynthetic capacity each separately reduced daytime carbon gain by approximately 39% on average across species. Together, they reduced daytime carbon gain by 64% on average across species. * At the age of their mean life-span, almost all leaves had positive daytime carbon balances. These per leaf carbon surpluses were of a similar magnitude to the estimated whole-plant respiratory costs per leaf. Thus, the results suggest that a whole-plant economic framework, including respiratory costs, may be useful in assessing controls on leaf longevity
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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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| 650 |
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a Falster, Daniel S
|e verfasserin
|4 aut
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|a Ellsworth, David S
|e verfasserin
|4 aut
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| 700 |
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|a Wright, Ian J
|e verfasserin
|4 aut
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| 700 |
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|a Westoby, Mark
|e verfasserin
|4 aut
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|a Oleksyn, Jacek
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Tali D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 183(2009), 1 vom: 28., Seite 153-166
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:183
|g year:2009
|g number:1
|g day:28
|g pages:153-166
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|u http://dx.doi.org/10.1111/j.1469-8137.2009.02824.x
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