Bioindication of air pollution by epiphytic lichens in forest decline studies in Slovenia
1995
Batic, F. (Ljubljana Univ. (Slovenia). Biotechnical Fac., Agronomy Dept.) | Mayrhofer, H. (Graz Karl-Franzens Univ. (Austria). Botanik Inst.)
First studies of this kind were based on mapping of cover and frequency of crustose, foliose and fructicose epiphytic lichens on trees which were assessed also for the decline symptoms. Since 1985 epiphytic lichen vegetation has been assessed by this methods and results, expressed as a lichen map of Slovenia were used as an air quality indicator for plots of forest die-back inventory. In case studies of forest decline, in collaboration with lichenologist from Graz Univ., Austria, all epiphytic lichen species were mapped in order to obtain better measure of air quality in the area studied. Very polluted and still clean and well preserved forests were investigated. From the material collected and determined a lichen herbarium has been established on the Slovenian Forestry Inst.. Possibilites of further research and use of epiphytic lichens as air quality indicators are discussed.
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