% 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{Kasteel:55349,
author = {Kasteel, R. and Garnier, P. and Vachier, P. and Coquet, Y.},
title = {{D}ye tracer infiltration in the plough layer after straw
incorporation},
journal = {Geoderma},
volume = {137},
issn = {0016-7061},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-55349},
pages = {360 - 369},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {Straw residues may be accumulated in isolated zones in the
plough layer after mouldboard ploughing. This may limit
straw decomposition because of limited nitrogen availability
depending on the prevalent water flow pathways induced by
tillage. In this study, we used the food dye Brilliant Blue
FCF (Color Index 42090) to make visible the flow pathways in
the plough layer of a loamy soil after incorporation of 10
tonne of dry mass ha(-1), and to get a qualitative and
quantitative interpretation of the small-scale flow
behaviour. Approximately 1.3 L of a 4 g L-1 Brilliant Blue
solution was applied at a matric head of -1 cm with an
infiltrometer, equipped with a 25 cm-diameter disk.
Horizontal cross-sections of 50 x 50 cm were photographed at
1.5 to 3.5 cm depth intervals. High-resolution spatial maps
of Brilliant Blue concentration were derived from the
scanned photographs, using separate calibration
relationships between the measured Brilliant Blue
concentrations and the color spectra and depth for the soil
and the straw. Pronounced lateral dye movement was observed
through the soil matrix owing to soil sorptivity. In cases
of high sorptivity, the dye barely reached the depth of
straw incorporation. Otherwise, enhanced preferential dye
transport directed towards the incorporated straw was made
visible and the stained water eventually ponded on the
plough pan which induced lateral redistribution. Although
the straw inclusions contributed to dye transport, they did
not retain a substantial part of the applied dye mass, owing
to the low density and surface area of straw. However, these
inclusions may enhance the fast migration of potential
pollutants such as nitrate or pesticides out of the tilled
layer where much of the transformation occurs due to
biological activity. (c) 2006 Elsevier B.V. All rights
reserved.},
keywords = {J (WoSType)},
cin = {ICG-4},
ddc = {550},
cid = {I:(DE-Juel1)VDB793},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Soil Science},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000243842700011},
doi = {10.1016/j.geoderma.2006.08.033},
url = {https://juser.fz-juelich.de/record/55349},
}