Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 381607
Title Remote sensing of sun-induced fluorescence to improve modeling of diurnal courses of gross primary production (GPP)
Author(s) Damm, A.; Elbers, J.A.; Erler, A.; Giolis, B.; Hamdi, K.; Hutjes, R.W.A.; Kosvancova, M.; Meroni, M.; Migliettas, F.; Moersch, A.; Moreno, J.; Schickling, A.; Sonnenschein, R.; Udelhoven, T.; Linden, S. van der; Hostert, P.; Rascher, U.
Source Global Change Biology 16 (2010)1. - ISSN 1354-1013 - p. 171 - 186.
DOI https://doi.org/10.1111/j.1365-2486.2009.01908.x
Department(s) Alterra - Centre for Water and Climate
CWC - Earth System Science and Climate Change
Wageningen Environmental Research
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) koolstofcyclus - primaire productie - remote sensing - fluorescentie - spectroscopie - planten - fotosynthese - modelleren - carbon cycle - primary production - remote sensing - fluorescence - spectroscopy - plants - photosynthesis - modeling - light-use efficiency - induced chlorophyll fluorescence - photochemical reflectance index - net primary production - eddy covariance - photosynthetic efficiency - leaf senescence - photosystem-ii - carbon-dioxide - boreal forest
Categories Climatology
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
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