Abstract
The most sensitive index of air pollution proved to be the sulfur content of needles of the Scots pine; the normal contents were reached at a distance of 20-30 km from the factories. The industrial site lies in a lichen desert (8.8 km/sup 2/), outside which is a transitional zone (52 km/sup 2/). The pine damage area coincides almost exactly with the lichen desert. The order of susceptibility of the dwarf shrubs studied proved to be: Calluna vulgaris (least tolerant), Empetrum nigrum, Vaccinium vitis-idaea and Arctostaphylos uva-ursi. The acidity of the soil had not changed very much. The acidity of the pine bark had decreased and the sulfur and phosphorus contents of the bark had risen between the factories and the limit of the lichen desert, because of fertilizer dust. 25 references, 9 figures, 1 table.
Citation Formats
Laaksovirta, K, and Silvola, J.
Effect of air pollution by copper, sulfuric acid and fertilizer factories on plants at Harjavalta, West Finland.
Finland: N. p.,
1975.
Web.
Laaksovirta, K, & Silvola, J.
Effect of air pollution by copper, sulfuric acid and fertilizer factories on plants at Harjavalta, West Finland.
Finland.
Laaksovirta, K, and Silvola, J.
1975.
"Effect of air pollution by copper, sulfuric acid and fertilizer factories on plants at Harjavalta, West Finland."
Finland.
@misc{etde_5517124,
title = {Effect of air pollution by copper, sulfuric acid and fertilizer factories on plants at Harjavalta, West Finland}
author = {Laaksovirta, K, and Silvola, J}
abstractNote = {The most sensitive index of air pollution proved to be the sulfur content of needles of the Scots pine; the normal contents were reached at a distance of 20-30 km from the factories. The industrial site lies in a lichen desert (8.8 km/sup 2/), outside which is a transitional zone (52 km/sup 2/). The pine damage area coincides almost exactly with the lichen desert. The order of susceptibility of the dwarf shrubs studied proved to be: Calluna vulgaris (least tolerant), Empetrum nigrum, Vaccinium vitis-idaea and Arctostaphylos uva-ursi. The acidity of the soil had not changed very much. The acidity of the pine bark had decreased and the sulfur and phosphorus contents of the bark had risen between the factories and the limit of the lichen desert, because of fertilizer dust. 25 references, 9 figures, 1 table.}
journal = []
volume = {12:2}
journal type = {AC}
place = {Finland}
year = {1975}
month = {Jan}
}
title = {Effect of air pollution by copper, sulfuric acid and fertilizer factories on plants at Harjavalta, West Finland}
author = {Laaksovirta, K, and Silvola, J}
abstractNote = {The most sensitive index of air pollution proved to be the sulfur content of needles of the Scots pine; the normal contents were reached at a distance of 20-30 km from the factories. The industrial site lies in a lichen desert (8.8 km/sup 2/), outside which is a transitional zone (52 km/sup 2/). The pine damage area coincides almost exactly with the lichen desert. The order of susceptibility of the dwarf shrubs studied proved to be: Calluna vulgaris (least tolerant), Empetrum nigrum, Vaccinium vitis-idaea and Arctostaphylos uva-ursi. The acidity of the soil had not changed very much. The acidity of the pine bark had decreased and the sulfur and phosphorus contents of the bark had risen between the factories and the limit of the lichen desert, because of fertilizer dust. 25 references, 9 figures, 1 table.}
journal = []
volume = {12:2}
journal type = {AC}
place = {Finland}
year = {1975}
month = {Jan}
}