% 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{VanGaelen:187137,
author = {Van Gaelen, Nele and Verheyen, Dries and Ronchi, Benedicta
and Struyf, Eric and Govers, Gerard and Vanderborght, Jan
and Diels, Jan},
title = {{I}dentifying the {T}ransport {P}athways of {D}issolved
{O}rganic {C}arbon in {C}ontrasting {C}atchments},
journal = {Vadose zone journal},
volume = {13},
number = {7},
issn = {1539-1663},
address = {Madison, Wis.},
publisher = {SSSA},
reportid = {FZJ-2015-00811},
pages = {},
year = {2014},
abstract = {An extensive sampling study identified the transport
pathways of dissolved organic C to the surface water in
contrasting catchments. An end-member mixing analysis
revealed that the transport pathways of dissolved organic C
can differ seasonally and highly depend on the degree of
saturation of the vadose zone.Dissolved organic C (DOC)
plays an important role in the cycling and distribution of
energy and nutrients. However, factors controlling the
transport of DOC both within and between ecosystems are not
clear. The aim of this work was to identify the contributing
pathways for transport of DOC to surface water in catchments
contrasting in land use and hydrogeology and during
different flow regimes. Stream water was sampled to observe
temporal variation of DOC concentrations and quality both
seasonally and at the time scale of a rain event. Major
cation and silica concentrations in stream water,
groundwater, soil pore water, precipitation/throughfall, and
riparian zone water samples were combined in an end-member
mixing analysis to determine the contributing end-members
for DOC delivery at the catchment outlet. Results show that
the change in DOC concentrations and quality observed in the
stream water during a rain event can be explained by a
change in contribution of the different end-members. In the
forested catchments with deep groundwater tables, the main
pathway for DOC transport from the soil to the surface water
during base flow was via the groundwater. Rising stream DOC
concentrations during rainfall events were attributed to
additional throughfall and riparian zone transport pathways.
In the grassland catchments with shallow groundwater tables,
DOC in the stream mainly originated from seeps. During rain
events, contributions from a surficial transport pathway and
riparian zone water gained importance. The importance of
contributing pathways changed seasonally and highly depended
on the degree of saturation of the vadose zone.},
cin = {IBG-3},
ddc = {550},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {246 - Modelling and Monitoring Terrestrial Systems: Methods
and Technologies (POF2-246) / 255 - Terrestrial Systems:
From Observation to Prediction (POF3-255)},
pid = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000343161800002},
doi = {10.2136/vzj2013.11.0199},
url = {https://juser.fz-juelich.de/record/187137},
}