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Assessment of the effects of pollution in the Harz mountains by analysis of needles from young Norway spruce stands


, : Assessment of the effects of pollution in the Harz mountains by analysis of needles from young Norway spruce stands. Hercynia 27(1): 82-91

The effects of air pollution on plant nutrition were studied in 29 stands mainly between 5 and 18 yr old in the Harz mountains, E. Germany. The study concentrated on sites with poor nutritional status, where symptoms of dieback would first become apparent. Needle analyses showed that Mg was deficient on most sites, often accompanied by a slight N deficiency. K deficiency occurred on a few sites, while Ca and Zn generally had low concn. but were not deficient.

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