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Österreichisches Bioindikatornetz (BIN)
Austrian Bio-Indicator Grid
Threshold values for different tree species in Austria

Norway Spruce (Picea abies)
Spruce is the main tree species in Austria and in terms of plant analysis the most well researched tree species, which makes it ideal as a bioindicator. For a number of elements threshold values are specified in the Austrian forest law (Zweite Verordnung gegen Forstschädliche Luftverunreinigungen, BGBl. Nr. 199/1984), facilitating an assessment of the results.  >>>
Scots Pine (Pinus sylvestris) and European Black Pine (Pinus nigra)
In the east of Austria with its warm summers and rather dry habitats, pine replaces spruce as a bioindicator. Pine is highly suitable as a bioindicator as well, because of being the second most common tree species in Austria and because for pine there are many threshold values given in the literature. >>>
European Beech (Fagus sylvatica)
Beech is the most important deciduous tree species in Austria. For a number of elements threshold values are specified in the Austrian forest law (Zweite Verordnung gegen Forstschädliche Luftverunreinigungen, BGBl. Nr. 199/1984), facilitating an assessment of the results. However, beech is only rarely used as a bioindicator.  >>>
Oak (Quercus sp.)
In Austria, oaks are important tree species and occur predominantly on plains (e.g. Weinviertel). Because there are no threshold values specified in the Austrian forest law (Zweite Verordnung gegen Forstschädliche Luftverunreinigungen, BGBl. Nr. 199/1984), beech and spruce are preferred over oak as bioindicators for assessment of air pollution. Values for assessment of the supply of nutrients are available though. >>>
European Ash (Fraxinus excelsior)
Because for ash there are no threshold values specified in the Austrian forest law (Zweite Verordnung gegen Forstschädliche Luftverunreinigungen, BGBl. Nr. 199/1984), beech and spruce are preferred over ash as bioindicators for assessment of air pollution. Values for assessment of the supply of nutrients are available though. >>>
Maple (Acer sp.)
Because for maples there are no threshold values specified in the Austrian forest law (Zweite Verordnung gegen Forstschädliche Luftverunreinigungen, BGBl. Nr. 199/1984), beech and spruce are preferred over maple as bioindicators for the assessment of air pollution. Values for assessment of the nutrient supply are available though. >>>
06.03.09 | Fürst, A.
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