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JXB Advance Access published online on September 21, 2006
Journal of Experimental Botany, doi:10.1093/jxb/erl123
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© The Author [2006]. 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
Received May 15, 2006
Accepted July 17, 2006

FOCUS PAPER

Hyperspectral remote sensing of plant pigments

George Alan Blackburn 1 *

1 Department of Geography, Lancaster University, Lancaster LA1 4YB, UK

* To whom correspondence should be addressed.
George Alan Blackburn, E-mail: alan.blackburn{at}lancaster.ac.uk


  Abstract

The dynamics of pigment concentrations are diagnostic of a range of plant physiological properties and processes. This paper appraises the developing technologies and analytical methods for quantifying pigments non-destructively and repeatedly across a range of spatial scales using hyperspectral remote sensing. Progress in deriving predictive relationships between various characteristics and transforms of hyperspectral reflectance data are evaluated and the roles of leaf and canopy radiative transfer models are reviewed. Requirements are identified for more extensive intercomparisons of different approaches and for further work on the strategies for interpreting canopy scale data. The paper examines the prospects for extending research to the wider range of pigments in addition to chlorophyll, testing emerging methods of hyperspectral analysis and exploring the fusion of hyperspectral and LIDAR remote sensing. In spite of these opportunities for further development and the refinement of techniques, current evidence of an expanding range of applications in the ecophysiological, environmental, agricultural, and forestry sciences highlights the growing value of hyperspectral remote sensing of plant pigments.

Keywords: Anthocyanins; carotenoids; chlorophyll; hyperspectral; optical properties; pigments; radiative transfer; reflectance; remote sensing.
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