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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16232
|2 doi
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|a pubmed24n1135.xml
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|a (DE-627)NLM340809140
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|a (NLM)35555836
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Petit, Giai
|e verfasserin
|4 aut
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| 245 |
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|a No xylem phenotypic plasticity in mature Picea abies and Fagus sylvatica trees after 5 years of throughfall precipitation exclusion
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|c 2022
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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 04.07.2022
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|a Date Revised 17.09.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 The Authors. Global Change Biology published by John Wiley & Sons Ltd.
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|a Forest trees are experiencing increasing frequency and intensity of drought events with climate change. We investigated xylem and phloem traits from mature Fagus sylvatica and Picea abies trees after 5 years of complete exclusion of throughfall precipitation during the growing season. Xylem and phloem anatomy, leaf and branch biomass were analysed along top branches of ~1.5 m lenght in 5 throughfall precipitation excluded (TE) and 5 control (CO) trees of both beech and spruce. Xylem traits were analysed on wood cores extracted from the stem at breast height. In the top branches of both species, the lumen diameter (or area) of xylem and phloem conduits did not differ between TE and CO trees. At breast height, TE trees of both species produced narrower xylem rings and conduits. While allocation to branch (BM) and needle biomass (LM) did not change between TE and CO in P. abies, TE F. sylvatica trees allocated proportionally more biomass to leaves (LM) than BM compared with CO. Despite artificial drought increased the mortality in the TE plots, our results revealed no changes in both xylem and phloem anatomies, undermining the hypothesis that successful acclimation to drought would primarily involve increased resistance against air embolism
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|a Journal Article
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| 650 |
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|a acclimation
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| 650 |
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4 |
|a drought
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| 650 |
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|a functional balance
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| 650 |
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|a phenotypic plasticity
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| 650 |
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4 |
|a phloem
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| 650 |
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4 |
|a precipitation exclusion
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| 650 |
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4 |
|a tree mortality
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| 650 |
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4 |
|a widening
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| 650 |
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4 |
|a xylem
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| 700 |
1 |
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|a Zambonini, Dario
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hesse, Benjamin D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Häberle, Karl-Heinz
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 28(2022), 15 vom: 01. Aug., Seite 4668-4683
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:28
|g year:2022
|g number:15
|g day:01
|g month:08
|g pages:4668-4683
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.16232
|3 Volltext
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