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@ARTICLE{Bauer:973,
author = {Bauer, J. and Kirschbaum, M. U. F. and Weihermüller, L.
and Huisman, J. A. and Herbst, M. and Vereecken, H.},
title = {{T}emperature response of wheat decomposition is more
complex than the common approaches of most multi-pool
models},
journal = {Soil biology $\&$ biochemistry},
volume = {40},
issn = {0038-0717},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-973},
pages = {2780 - 2786},
year = {2008},
note = {Record converted from VDB: 12.11.2012},
abstract = {The temperature response of heterotrophic soil respiration
is crucial for a reliable prediction of carbon dynamics in
response to climatic changes. Most multi-pool models
describe the temperature dependence of carbon decomposition
by a response function which uniformly scales the
decomposition constants of all carbon pools. However, it is
not clear whether the temperature response does, indeed,
conform to such a simple formulation. In this study, we
analysed measured CO2 efflux from wheat decomposition
experiments under six different temperatures (5, 9, 15, 25,
35 and 45 degrees C). Data were interpreted by assuming that
litter could be sub-divided into two pools, a labile and a
more recalcitrant one, that would each decay exponentially.
We found that the observed patterns of carbon loss were
poorly described if we used the same relative temperature
response functions for the decomposition of both pools and
assumed the same chemical recalcitrance (expressed as the
ratio of labile and recalcitrant pool sizes) at all
temperatures. Data prediction could be significantly
improved by using different temperature response functions
for the decomposition of the two different organic matter
fractions. Even better data prediction could be achieved by
assuming that chemical recalcitrance varied with
temperature. The data could also be well described by the
more sophisticated carbon-dynamic models RothC and
CenW/CENTURY, again, provided that the ratio of litter
fractions in the initial input material was modified with
temperature. Our findings thus suggest that the temperature
dependence of organic matter decomposition cannot be fully
described with the simple approaches usually employed but
that there is a more complicated interplay between the
temperature dependence of decomposition rates and
temperature effects on the chemical recalcitrance of
different organic matter fractions. (c) 2008 Elsevier Ltd.
All rights reserved.},
keywords = {J (WoSType)},
cin = {ICG-4 / JARA-ENERGY / JARA-SIM},
ddc = {570},
cid = {I:(DE-Juel1)VDB793 / $I:(DE-82)080011_20140620$ /
I:(DE-Juel1)VDB1045},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Soil Science},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000261007600009},
doi = {10.1016/j.soilbio.2008.07.024},
url = {https://juser.fz-juelich.de/record/973},
}