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Ruth, B.

Reflectance at the red edge as a sensitive indicator of the damage of trees and its correlation to the state of the photosynthetic system.

Proc. SPIE 1521, 131-142 (1991)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
From the reflectance spectra R(λ), the absolute value R710 at 710 nm, the ratios G/R = R560/R660 and IR/R = R760/R660, the position λre of the inflection point at the red edge, and the chromaticity point are derived. The photosynthetic system (PS) is characterized by the fluorescence induction kinetics which provides the parameters Rfd and Vo for the estimate of the potential photosynthetic capacity and the chlorophyll concentration, respectively. Measurements obtained from spruce, birch, oak, and poplar of different damage class and color show correlations between the reflectance- and fluorescence-characteristics. The chromaticity points provide a two-dimensional analysis which may improve the separation between affected and healthy trees.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0277-786X
e-ISSN 1996-756X
Zeitschrift Proceedings of SPIE
Quellenangaben Band: 1521, Heft: , Seiten: 131-142 Artikelnummer: , Supplement: ,
Verlag SPIE
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed