The effect of SO2 pollution on pine needle structure

E. A. Zhitkova; L. L. Novitskaya

Treesearch

The effect of SO₂ pollution on pine needle structure

Informally Refereed

Authors:

E. A. Zhitkova, L. L. Novitskaya

Year:

2000

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Hansen, Mark; Burk, Tom, eds. Integrated tools for natural resources inventories in the 21st century. Gen. Tech. Rep. NC-212. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 741-744.

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Abstract

Fall and winter needles from pines growing near the Kostomuksha oredressing mill (KODM) were collected and studied by light microscopy. Fall needles showed symptoms of SO₂ influence and no specific seasonal changes in mesophyll. The injury rates of needle surface and mesophyll showed that pollutants penetrate into the needles through stomata and cuticle. Compared to fall needles winter needles exhibited a greater number of destroyed mesophyll cells and heavy cuticle damage. The effect of the KODM pollutants is thought to reduce the tolerance of mesophyll to low temperatures. It is obvious that pine needles near the KODM suffer both from acid rain and SO₂.

Parent Publication

Integrated tools for natural resources inventories in the 21st century

Citation

Zhitkova, E. A.; Novitskaya, L. L. 2000. The effect of SO₂ pollution on pine needle structure. In: Hansen, Mark; Burk, Tom, eds. Integrated tools for natural resources inventories in the 21st century. Gen. Tech. Rep. NC-212. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station. 741-744.