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JXB Advance Access published online on May 22, 2009
Journal of Experimental Botany, doi:10.1093/jxb/erp156
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© The Author [2009]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org

REVIEW-ARTICLE

Scientific and technical challenges in remote sensing of plant canopy reflectance and fluorescence

Zbynek Malenovsky1,2 *,{dagger}, Kumud Bandhu Mishra3,4 *, Frantisek Zemek5, Uwe Rascher6 and Ladislav Nedbal3,4

1Remote Sensing Laboratories, Department of Geography, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
2Centre for Geo-Information, Wageningen University, Droevendaalsesteeg 3/PO Box 47, 6700 AA Wageningen, The Netherlands
3Departments of Plant Physiology and Ecology and Mathematical Biology, Institute of Systems Biology and Ecology ASCR, Zámek 136, 37333 Nové Hrady, Czech Republic
4Institute of Physical Biology, University of South Bohemia, Zámek 136, 37333 Nové Hrady, Czech Republic
5Laboratory of Plants Ecological Physiology, Institute of Systems Biology and Ecology ASCR, Porící 3b, 60300 Brno, Czech Republic
6Institute of Chemistry and Dynamics of the Geosphere (ICG-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

{dagger} To whom correspondence should be addressed: E-mail: zbynek.malenovsky{at}gmail.com

State-of-the-art optical remote sensing of vegetation canopies is reviewed here to stimulate support from laboratory and field plant research. This overview of recent satellite spectral sensors and the methods used to retrieve remotely quantitative biophysical and biochemical characteristics of vegetation canopies shows that there have been substantial advances in optical remote sensing over the past few decades. Nevertheless, adaptation and transfer of currently available fluorometric methods aboard air- and space-borne platforms can help to eliminate errors and uncertainties in recent remote sensing data interpretation. With this perspective, red and blue-green fluorescence emission as measured in the laboratory and field is reviewed. Remotely sensed plant fluorescence signals have the potential to facilitate a better understanding of vegetation photosynthetic dynamics and primary production on a large scale. The review summarizes several scientific challenges that still need to be resolved to achieve operational fluorescence based remote sensing approaches.

Key words: Chlorophyll fluorescence, optical remote sensing, photosynthesis dynamics, reflectance, vegetation primary production

* Both authors contributed equally to this work.

Received 14 January 2009; Revised 16 April 2009 Accepted 22 April 2009


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