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@PHDTHESIS{Cai:844533,
author = {Cai, Gaochao},
title = {{T}he impact of soil water distribution on root development
and root water uptake of winter wheat},
volume = {410},
school = {Uiversität Bonn},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zenralbibliothek, Verlag},
reportid = {FZJ-2018-01940},
isbn = {978-3-95806-303-7},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {143 S.},
year = {2018},
note = {Universität Bonn, Diss., 2018},
abstract = {Background and objectives: Root water uptake (RWU) is a key
process in the root zone that determines water movement from
the soil into roots and transport to the atmosphere via
plant stems and leaves. Different RWU models were developed
with different assumptions, complexity, and parameters but
the description of this process and its parameterization
remain challenging in soil hydrology. Due to the difficulty
of monitoring of root development and soil states in
undisturbed soils, dynamic root distributions and a
physically based concept to describe water uptake from soil
profiles with vertical variations in soil water availability
are often not taken into consideration. Furthermore, the
simulated RWU is rarely evaluated by transpiration
measurements for different soil water conditions and soil
textures. This study aims at 1)introducing two mini
rhizotron (MR) facilities installed in two different soils
with different water treatments that were designed for
monitoring dynamic root distribution and spatio-temporal
soilstate variations in situ, 2) parameterizing three RWU
models that use different concepts to describe water uptake
and investigating the difference in water uptake patterns
and the possible links between them, 3) exploring the effect
of soil water availability on root development and RWU that
were estimated by different RWU models, and evaluating the
estimated RWU by measured sap flow data. Although the model
approaches and experimental methods are generic and
applicable to different crops, only winter wheat was
considered in this study.},
cin = {IBG-3},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
url = {https://juser.fz-juelich.de/record/844533},
}