Author(s)

H. Schultz, G. Huhn, K. Jung, S. Hartling & G. Schuurmann

Abstract

Biochemical responses in needles of Scots pine (Finns Sylvestris) from air polluted field sites in Eastern Germany H. Schultz, G. Huhn, K. Jung, S. Hartling, G. Schuurmann Department of Chemical Ecotoxicology, Centre for Environmental Research Leipzig-Halle, P.O. Box 2, D-04301 Leipzig, Germany Summary Needles from young Scots pine trees (Pinus sylvestris) were collected at two field sites (Neuglobsow and Rosa) in eastern Germany as part of the ongoing SANA project. These sites differed markedly in SO% and NO,, but not in O, pollution. From 1984 to 1994, SO; pollution decreased, while NO, pollution increased at both sites. To measure the effect of changed air pollution on the vitality of pine trees, we measured various (bio)chemical parameters in current year's needles. In needles from the highly polluted site Rosa, the amounts of sulphate and non-protein nitrogen, the activity of superoxide dismutase isozymes, the 6'^N values and the index of needle necrosis were significantly

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