% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Weihermller:49573,
author = {Weihermüller, L. and Kasteel, R. and Vanderborght, J. and
Pütz, T. and Vereecken, H.},
title = {{S}oil water extraction with a suction cup: {R}esults of
numerical simulation},
journal = {Vadose zone journal},
volume = {4},
issn = {1539-1663},
address = {Madison, Wis.},
publisher = {SSSA},
reportid = {PreJuSER-49573},
pages = {899 - 907},
year = {2005},
note = {Record converted from VDB: 12.11.2012},
abstract = {Porous cups are widely used to extract soil water for
monitoring solute transport. However, it is not yet clear
how the suction cup influences the matric potential in the
surrounding soil and which part of the soil is sampled. This
research was designed to numerically evaluate the activity
domain, the extraction domain, and sampling area of a
suction cup under constant infiltration. A finite- element
model (HYDRUS-2D) was used to simulate the effect of various
applied suctions at two infiltration rates on the water
status in three soils (clay loam, sandy clay, and sand).
Particle tracking was used to track the streamlines that
define the sampling area and extraction of the suction cup.
In general, the activity domain, the extracdomain, and
sampling area of the suction cup depend primarily on the
soil hydraulic parameters and the upper boundary, and
secondarily on the applied suction. Results showed that the
activity domain, the extraction domain, and the sampling
area are largest for highest ambient hydraulic
conductivities. The activity domain and the sampling area
also decrease with increasing infiltration rates. Further,
the activity domain of the suction cup depends strongly on
the duration of water extraction. Soil heterogeneity seems
to play a minor role with respect to the activity domain and
sampling area of the cup.},
keywords = {J (WoSType)},
cin = {ICG-IV},
ddc = {550},
cid = {I:(DE-Juel1)VDB50},
pnm = {Chemie und Dynamik der Geo-Biosphäre},
pid = {G:(DE-Juel1)FUEK257},
shelfmark = {Environmental Sciences / Soil Science / Water Resources},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000234472300002},
doi = {10.2136/vzj2004.0156},
url = {https://juser.fz-juelich.de/record/49573},
}