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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2018.03.009
|2 doi
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|a pubmed24n0941.xml
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|a (DE-627)NLM282558411
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|a (NLM)29606360
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|a (PII)S0176-1617(18)30058-0
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|a DE-627
|b ger
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|e rakwb
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| 041 |
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|a eng
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1 |
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|a Plavcová, Lenka
|e verfasserin
|4 aut
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|a Seasonal variation of δ18O and δ2H in leaf water of Fagus sylvatica L. and related water compartments
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 30.08.2018
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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 Copyright © 2018 Elsevier GmbH. All rights reserved.
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|a The study aims to assess variability in leaf water isotopic enrichment occurring in the field under natural conditions. We focused on seasonal variation and difference between sun-exposed and shaded leaves. Isotopic composition (δ18O, δ2H) of leaf water was monitored in a beech tree (Fagus sylvatica L.) growing in the forest-meadow ecotone together with δ18O (2H) of water compartments which are in close relation to this signal, namely twig and soil water. The sampling was carried out in approximately two-week intervals during five consecutive vegetation seasons. The δ18O (2H) data showed a distinct seasonal pattern and a consistency in relative differences between the seasons and sample categories. Leaf water was the most isotopically enriched water compartment. The leaf water enrichment decreased toward the autumn reflecting the change in δ18O (2H) of source water and evaporative demands. The soil and twig water isotopic signal was depleted against current precipitation as it partly retained the isotopic signature from winter precipitation however the seasonal pattern of soil and twig water followed that of precipitation. No significant differences between sun-exposed and shaded samples were detected. Nevertheless, the observed strong seasonal pattern of isotope composition of leaf, twig and soil water should be taken into account when using leaf water enrichment for further calculations or modeling
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|a Journal Article
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|a Fagus
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|a Irradiance
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|a Leaf water
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|a Seasonal course
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|a Soil
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|a Water isotopes
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|a Oxygen Isotopes
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Deuterium
|2 NLM
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| 650 |
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|a AR09D82C7G
|2 NLM
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| 700 |
1 |
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|a Hronková, Marie
|e verfasserin
|4 aut
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| 700 |
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|a Šimková, Marie
|e verfasserin
|4 aut
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| 700 |
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|a Květoň, Jiří
|e verfasserin
|4 aut
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| 700 |
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|a Vráblová, Martina
|e verfasserin
|4 aut
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| 700 |
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|a Kubásek, Jiří
|e verfasserin
|4 aut
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| 700 |
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|a Šantrůček, Jiří
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 227(2018) vom: 19. Aug., Seite 56-65
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|x 1618-1328
|7 nnns
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| 773 |
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|g volume:227
|g year:2018
|g day:19
|g month:08
|g pages:56-65
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|u http://dx.doi.org/10.1016/j.jplph.2018.03.009
|3 Volltext
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