Photosignal II as an Indicator for Damage to Forests - EPR Spectroscopic Investigation of Spruce Needles

Authors

  • Prof. Dr. Hartmut B. Stegmann,

    Corresponding author
    1. Institut für Organische Chemie der Universität, Auf der Morgenstelle 18, D-7400 Tübingen (FRG)
    • Institut für Organische Chemie der Universität, Auf der Morgenstelle 18, D-7400 Tübingen (FRG)
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  • Dipl.-Ing. (F. H.) Hans J. Ruff,

    1. Forstdirektion Tübingen, Schloß Bebenhausen, D-7400 Bebenhausen bei Tübingen (FRG)
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  • Prof. Dr. Klaus Scheffler

    1. Institut für Organische Chemie der Universität, Auf der Morgenstelle 18, D-7400 Tübingen (FRG)
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  • This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie.

Abstract

Following the exposure of spruce needles to SO2 and NOx, it is possible to detect changes in the electron transport chain of the photosynthetic apparatus by EPR spectroscopy and to clearly distinguish between the needles of healthy and of damaged trees.

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