Seasonal variation of delta O-18 and delta H-2 in leaf water of Fagus sylvatica L. and related water compartments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F18%3A50015344" target="_blank" >RIV/62690094:18470/18:50015344 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/18:00495084 RIV/60076658:12310/18:43897539

Result on the web

<a href="http://dx.doi.org/10.1016/j.jplph.2018.03.009" target="_blank" >http://dx.doi.org/10.1016/j.jplph.2018.03.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jplph.2018.03.009" target="_blank" >10.1016/j.jplph.2018.03.009</a>

Result language

angličtina

Original language name

Seasonal variation of delta O-18 and delta H-2 in leaf water of Fagus sylvatica L. and related water compartments

Original language description

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 (delta O-18, delta H-2) of leaf water was monitored in a beech tree (Fagus sylvatica L.) growing in the forest-meadow ecotone together with delta O-18 (H-2) 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 delta O-18 (H-2) 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 delta O-18 (H-2) 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of plant physiology

ISSN

0176-1617

e-ISSN

—

Volume of the periodical

227

Issue of the periodical within the volume

AUGUST

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

56-65

UT code for WoS article

000439100400006

EID of the result in the Scopus database

2-s2.0-85044503439