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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16029
|2 doi
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|a pubmed24n0995.xml
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|a (DE-627)NLM298598418
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|a (NLM)31245836
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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 Wu, Jin
|e verfasserin
|4 aut
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| 245 |
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|a Leaf reflectance spectroscopy captures variation in carboxylation capacity across species, canopy environment and leaf age in lowland moist tropical forests
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|c 2019
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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 11.05.2020
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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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 Understanding the pronounced seasonal and spatial variation in leaf carboxylation capacity (Vc,max ) is critical for determining terrestrial carbon cycling in tropical forests. However, an efficient and scalable approach for predicting Vc,max is still lacking. Here the ability of leaf spectroscopy for rapid estimation of Vc,max was tested. Vc,max was estimated using traditional gas exchange methods, and measured reflectance spectra and leaf age in leaves sampled from tropical forests in Panama and Brazil. These data were used to build a model to predict Vc,max from leaf spectra. The results demonstrated that leaf spectroscopy accurately predicts Vc,max of mature leaves in Panamanian tropical forests (R2 = 0.90). However, this single-age model required recalibration when applied to broader leaf demographic classes (i.e. immature leaves). Combined use of spectroscopy models for Vc,max and leaf age enabled construction of the Vc,max -age relationship solely from leaf spectra, which agreed with field observations. This suggests that the spectroscopy technique can capture the seasonal variability in Vc,max , assuming sufficient sampling across diverse species, leaf ages and canopy environments. This finding will aid development of remote sensing approaches that can be used to characterize Vc,max in moist tropical forests and enable an efficient means to parameterize and evaluate terrestrial biosphere models
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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 Earth system models
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| 650 |
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4 |
|a gas exchange
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| 650 |
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4 |
|a plant functional traits
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| 650 |
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4 |
|a seasonality
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| 650 |
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4 |
|a vegetation spectroscopy
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| 700 |
1 |
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|a Rogers, Alistair
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Albert, Loren P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ely, Kim
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Prohaska, Neill
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wolfe, Brett T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Oliveira, Raimundo Cosme
|c Jr
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Saleska, Scott R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Serbin, Shawn P
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 224(2019), 2 vom: 27. Okt., Seite 663-674
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:224
|g year:2019
|g number:2
|g day:27
|g month:10
|g pages:663-674
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|u http://dx.doi.org/10.1111/nph.16029
|3 Volltext
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