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@ARTICLE{Bauer:62043,
author = {Bauer, J. and Herbst, M. and Huisman, J. A. and
Weihermüller, L. and Vereecken, H.},
title = {{S}ensitivity of simulated soil heterotrophic respiration
to temperature and moisture reduction functions},
journal = {Geoderma},
volume = {145},
issn = {0016-7061},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-62043},
year = {2008},
note = {Record converted from VDB: 12.11.2012},
abstract = {In this study, the influence of different soil temperature
and moisture reduction functions for scaling decomposition
rates of soil organic matter on the prediction of CO2
production and fluxes was analysed. For this purpose, soil
temperature and moisture reduction functions of six soil
carbon decomposition models (CANDY, CENTURY, DAISY, PATOIS,
ROTHC, and SOILCO2) were implemented in the modified
SOLLCO2-ROTHC model. As a test scenario, a respiration
experiment on a silt loam in Columbia (USA) was chosen,
which consists of two periods both including soil
respiration measurements in a wheat stand and a subsequent
bare soil period. Additionally, the dataset contains
treasured soil temperature, soil moisture as well as CO2
concentrations within the soil profile. The cumulative COz
fluxes simulated with different temperature reduction
functions showed deviations up to $41\%$ (1.77 t C ha(-1))
for the six-month simulation period in 1981. The influence
of moisture reduction was smaller with deviations up to
$2\%$ (0.10 t C ha(-1)). A combination of corresponding
temperature and moisture reduction functions resulted in the
highest deviations up to $41\%$ (1.80 t C ha(-1)). Under
field conditions the sensitivity towards soil temperature
reduction was 6 to 7 times higher compared to soil moisture
reduction. The findings of this study show that the choice
of soil temperature and soil moisture reduction functions is
a crucial factor for a reliable simulation of carbon
turnover. (c) 2008 Elsevier B.V. All rights reserved.},
keywords = {J (WoSType)},
cin = {ICG-4 / JARA-ENERGY / JARA-SIM},
ddc = {550},
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:000257019300003},
doi = {10.1016/j.geoderma.2008.01.026},
url = {https://juser.fz-juelich.de/record/62043},
}