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@ARTICLE{Damm:7581,
author = {Damm, A. and Erler, A. and Gioli, B. and Hamdi, K. and
Hutjes, R. and Kosvancova, M. and Meroni, M. and Miglietta,
F. and Moersch, A. and Moreno, J. and Schickling, A. and
Sonnenschein, R. and Udelhoven, T. and van der Linden, S.
and van der Tool, C. and Hostert, P. and Rascher, U.},
title = {{R}emote sensing of sun-induced fluorescence to improve
modeling of diurnal courses of gross primary production
({GPP})},
journal = {Global change biology},
volume = {16},
issn = {1354-1013},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-7581},
pages = {171 - 186},
year = {2010},
note = {This work was supported by a grant of the ESA in the frame
of the CEFLES2 campaign (grant no. 20802/07/LG). We also
thank Remo Bianchi and Michael Berger for their
organizational support. The authors acknowledge Giovanni
Agati (CNR-IFAC, Florence), Roberto Colombo (UNIMIB, Milan),
Gloria Fernandez, Luis Alonso and Jordi Garcia (RSU,
University of Valencia), Alessandro Zaldei and Piero Toscano
(CNR-IBIMET, Florence), Jonas Franke (University of Bonn)
and Marion Stellmes (University of Trier) for there valuable
help during the field campaigns. The authors are also
thankful to the two anonymous reviewers who provided
constructive comments to improve this manuscript.},
abstract = {Terrestrial gross primary production (GPP) is an important
parameter to explore and quantify carbon fixation by plant
ecosystems at various scales. Remote sensing (RS) offers a
unique possibility to investigate GPP in a spatially
explicit fashion; however, budgeting of terrestrial carbon
cycles based on this approach still remains uncertain. To
improve calculations, spatio-temporal variability of GPP
must be investigated in more detail on local and regional
scales. The overarching goal of this study is to enhance our
knowledge on how environmentally induced changes of
photosynthetic light-use efficiency (LUE) are linked with
optical RS parameters. Diurnal courses of sun-induced
fluorescence yield (FSyield) and the photochemical
reflectance index of corn were derived from high-resolution
spectrometric measurements and their potential as proxies
for LUE was investigated. GPP was modeled using Monteith's
LUE-concept and optical-based GPP and LUE values were
compared with synoptically acquired eddy covariance data. It
is shown that the diurnal response of complex physiological
regulation of photosynthesis can be tracked reliably with
the sun-induced fluorescence. Considering structural and
physiological effects, this research shows for the first
time that including sun-induced fluorescence into modeling
approaches improves their results in predicting diurnal
courses of GPP. Our results support the hypothesis that air-
or spaceborne quantification of sun-induced fluorescence
yield may become a powerful tool to better understand
spatio-temporal variations of fluorescence yield,
photosynthetic efficiency and plant stress on a global
scale.},
cin = {ICG-3},
ddc = {570},
cid = {I:(DE-Juel1)ICG-3-20090406},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Biodiversity Conservation / Ecology / Environmental
Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000274419200015},
doi = {10.1111/j.1365-2486.2009.01908.x},
url = {https://juser.fz-juelich.de/record/7581},
}