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dc.contributor.author
Prechsl, Ulrich E.
dc.contributor.author
Burri, Susanne
dc.contributor.author
Gilgen, Anna K.
dc.contributor.author
Kahmen, Ansgar
dc.contributor.author
Buchmann, Nina
dc.date.accessioned
2022-08-05T14:23:46Z
dc.date.available
2017-06-11T14:16:35Z
dc.date.available
2022-08-05T14:22:40Z
dc.date.available
2022-08-05T14:23:46Z
dc.date.issued
2015-01
dc.identifier.issn
0029-8549
dc.identifier.issn
1432-1939
dc.identifier.other
10.1007/s00442-014-3092-6
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/93652
dc.identifier.doi
10.3929/ethz-b-000093652
dc.description.abstract
Temperate C3-grasslands are of high agricultural and ecological importance in Central Europe. Plant growth and consequently grassland yields depend strongly on water supply during the growing season, which is projected to change in the future. We therefore investigated the effect of summer drought on the water uptake of an intensively managed lowland and an extensively managed sub-alpine grassland in Switzerland. Summer drought was simulated by using transparent shelters. Standing above- and belowground biomass was sampled during three growing seasons. Soil and plant xylem waters were analyzed for oxygen (and hydrogen) stable isotope ratios, and the depths of plant water uptake were estimated by two different approaches: (1) linear interpolation method and (2) Bayesian calibrated mixing model. Relative to the control, aboveground biomass was reduced under drought conditions. In contrast to our expectations, lowland grassland plants subjected to summer drought were more likely (43–68 %) to rely on water in the topsoil (0–10 cm), whereas control plants relied less on the topsoil (4–37 %) and shifted to deeper soil layers (20–35 cm) during the drought period (29–48 %). Sub-alpine grassland plants did not differ significantly in uptake depth between drought and control plots during the drought period. Both approaches yielded similar results and showed that the drought treatment in the two grasslands did not induce a shift to deeper uptake depths, but rather continued or shifted water uptake to even more shallower soil depths. These findings illustrate the importance of shallow soil depths for plant performance under drought conditions.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Precipitation manipulation experiment
en_US
dc.subject
Plant–water relations
en_US
dc.subject
Stable water isotopes
en_US
dc.subject
Bayesian calibrated mixing model
en_US
dc.subject
Root distribution
en_US
dc.title
No shift to deeper water uptake depth in response to summer drought of two lowland and sub-alpine C3-grasslands in Switzerland
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2014-10-02
ethz.journal.title
Oecologia
ethz.journal.volume
177
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Oecologia
ethz.pages.start
97
en_US
ethz.pages.end
111
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.nebis
000985960
ethz.publication.place
Heidelberg
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03648 - Buchmann, Nina / Buchmann, Nina
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03648 - Buchmann, Nina / Buchmann, Nina
ethz.date.deposited
2017-06-11T14:16:45Z
ethz.source
ECIT
ethz.identifier.importid
imp5936529c943ef89163
ethz.ecitpid
pub:147051
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-13T05:38:26Z
ethz.rosetta.lastUpdated
2023-02-07T05:08:03Z
ethz.rosetta.versionExported
true
ethz.COinS
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