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Fiber optic and time-resolving techniques in forest decline research

Three novel techniques of fiber-optic spectroscopy have been recently introduced into research of forest decline. These include measurement of luminescence changes and fluorescence-decay of chiorophylls (i) under continuous irradiation, and after pulse-induction in the (ii) long-term and the (iii) picosecond time range. These changes will be correlated both with environmental factors such as air pollutants, soil, fertilization and various experimental and physiological conditions.