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@ARTICLE{Andre:15494,
author = {Andre, F. and Jonard, M. and Jonard, F. and Ponette, Q.},
title = {{S}patial and temporal patterns of throughfall volume in a
deciduous mixed-species stand},
journal = {Journal of hydrology},
volume = {400},
issn = {0022-1694},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-15494},
year = {2011},
note = {This research was co-funded by a FRIA (Fonds pour la
Recherche dans l'Industrie et l'Agriculture) grant and the
"Accord cadre - Recherche et Vulgarisation forestieres"
project. We wish to thank Ir. A. Barjasse and the local
forester A. Laboureix for giving us access to the site. We
are grateful to E. Dambrine for his advices as well as to C.
Nys and his technical team and to J. Morren for technical
and material assistance. Field measurements and maintenance
were carried out by C. Tilquin, M. Pierard, F. Plume, and F.
Hardy. We also gratefully thank the two anonymous reviewers
for their constructive comments and suggestions on an
earlier version of the manuscript.},
abstract = {The effects of canopy structure on the spatial and temporal
patterns of throughfall (TF) in deciduous mixed-species
stands remains poorly documented. TF was collected on a rain
event basis in an oak-beech stand, within 12 structural
units of contrasting densities (low, LD; high, HD) and
species composition (beech, oak, mixture) delimited by three
neighbouring trees. A roof was installed at the centre of
each unit, and gutters were placed at the periphery of the
LD units. Based on selected rain events, a simplified mass
balance approach was used to describe water fluxes reaching
and leaving the canopy. During the leafed season, the
proportions of incident rainfall (RF) collected as TF on the
roofs steadily increased with increasing RF up to a RF
volume of about 5 mm; for larger RF volumes, IF proportions
stabilised around $55\%$ under pure (LD, HD) beech and HD
mixture, and around $65\%$ under pure (LD, HD) oak and LD
mixture. During the leafless period, TF proportions (on
average $60\%)$ were independent of RF but were still
affected by local stand characteristics (HD mixture < HD
beech < HD oak < LD beech and mixture < LD oak). At canopy
saturation, lateral transfers as branch flow (BF) were
substantial (35 <= $(BF/RF)\%$ <= 46) in all plots, and were
significantly higher in the HD units compared to the LD
plots in the leafless period; part of BF falled down as
indirect TF before reaching the trunks, except in the HD
units during the leafless season where stemflow and BF were
similar. A mechanistic numerical model using rainfall
partitioning parameters determined in this study allowed to
successfully describe real-time throughfall measurements.
(C) 2011 Elsevier B.V. All rights reserved.},
keywords = {J (WoSType)},
cin = {IBG-3},
ddc = {690},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Engineering, Civil / Geosciences, Multidisciplinary / Water
Resources},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000289325100021},
doi = {10.1016/j.jhydrol.2011.01.037},
url = {https://juser.fz-juelich.de/record/15494},
}