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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14639
|2 doi
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|a pubmed24n0910.xml
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|a (DE-627)NLM273141929
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|a (NLM)28636081
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|a DE-627
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|e rakwb
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|a eng
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|a Björklund, Jesper
|e verfasserin
|4 aut
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|a Cell size and wall dimensions drive distinct variability of earlywood and latewood density in Northern Hemisphere conifers
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|c 2017
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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 01.06.2018
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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. 2017 Nov;216(3):621-625. - PMID 29034974
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|a Citation Status MEDLINE
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a Interannual variability of wood density - an important plant functional trait and environmental proxy - in conifers is poorly understood. We therefore explored the anatomical basis of density. We hypothesized that earlywood density is determined by tracheid size and latewood density by wall dimensions, reflecting their different functional tasks. To determine general patterns of variability, density parameters from 27 species and 349 sites across the Northern Hemisphere were correlated to tree-ring width parameters and local climate. We performed the same analyses with density and width derived from anatomical data comprising two species and eight sites. The contributions of tracheid size and wall dimensions to density were disentangled with sensitivity analyses. Notably, correlations between density and width shifted from negative to positive moving from earlywood to latewood. Temperature responses of density varied intraseasonally in strength and sign. The sensitivity analyses revealed tracheid size as the main determinant of earlywood density, while wall dimensions become more influential for latewood density. Our novel approach of integrating detailed anatomical data with large-scale tree-ring data allowed us to contribute to an improved understanding of interannual variations of conifer growth and to illustrate how conifers balance investments in the competing xylem functions of hydraulics and mechanical support
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|a Journal Article
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|a dendroclimatology
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|a ring width
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|a tracheid anatomy
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|a tree-ring network
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|a wood density
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| 650 |
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|a xylem function
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|a Seftigen, Kristina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schweingruber, Fritz
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fonti, Patrick
|e verfasserin
|4 aut
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| 700 |
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|a von Arx, Georg
|e verfasserin
|4 aut
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| 700 |
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|a Bryukhanova, Marina V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cuny, Henri E
|e verfasserin
|4 aut
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| 700 |
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|a Carrer, Marco
|e verfasserin
|4 aut
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| 700 |
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|a Castagneri, Daniele
|e verfasserin
|4 aut
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|a Frank, David C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 216(2017), 3 vom: 21. Nov., Seite 728-740
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:216
|g year:2017
|g number:3
|g day:21
|g month:11
|g pages:728-740
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|u http://dx.doi.org/10.1111/nph.14639
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