Air pollution indications and growth of spruce and pine near a sulfite plant

Lars Westman

Treesearch

Air pollution indications and growth of spruce and pine near a sulfite plant

Informally Refereed

Authors:

Lars Westman

Year:

1976

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.969

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Abstract

A preliminary study has been made around a sulfite plant in the north of Sweden. The emission of sulfur dioxide increased considerably in 1950 as a consequence of the introduction of lye-burning. Using the pH in pine bark and two common lichen epiphytes as indicators, the resistant Parmelia physodes and the very sensitive Alectoria implexa, the area studied was divided into regions with different degrees of air pollution, mainly sulfur dioxide.

Parent Publication

Proceedings of the first international symposium on acid precipitation and the forest ecosystem

Citation

Westman, Lars. 1976. Air pollution indications and growth of spruce and pine near a sulfite plant. In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.969