Bioindication of forest pollution with sulphur based on sulphur content in assimilation parts of forest trees
1995
Kalan, J. | Kalan, P. | Simoncic, P. (Forestry Inst. of Slovenia, Ljubljana (Slovenia))
Based on the research carried out in 1985-1993 on the points of the basic bioindication network (16 x 16 km) it can be concluded that the bioindication of air pollution with sulphur dioxide by the method of sulphur content analysis in the needles of the Norway spruce, Scots pine, black pine is highly convenient and reliable for the establishing of forest endangerment due to sulphur. The forests in the region of the Alps, Trnovski gozd, Sneznik, Javornik, the broader Kocevje -Ribnica region and the Gorjanci are the least afflicted by sulphur. The greatest affliction was established in Koroska, in the region of Celje, Ljubljana, the region along the Sava river, in the vicinity of Maribor and in the Prekmurje. In the last five years the content of sulphur has increased in the zones along the border with Italy, Croatia and Hungary and the vicinity of strong emission sources in the central part of Slovenia.
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