Spatial distribution of lichens on twigs in remote Siberian silver fir forests indicates changing atmospheric conditions

Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.1017/S0024282908006828

Ключевые слова: 'nitrophytes', Abies sibirica, Acidophytes, Air pollution, Ammonia emissions, Bark pH, Biomonitoring, Siberia, Abies, Abies sibirica, Animalia, Candelariella vitellina, Melanohalea exasperatula, Phaeophyscia, Physcia aipolia

Аннотация: The distribution of different ecological groups of lichens (acidophytes, 'nitrophytes', indifferent species) was compared on 1-24 year-old twigs of Abies sibirica sampled in the 'pristine' West Sayan and the polluted East Sayan Mountains (Krasnoyarsk District, South Siberia, Russia) to test their value as indicators of current pollution effects. Bark pH of twigs and bark chemistry (N, S, Ca, Mg, Al, Fe) were measured, and a preliminary estimate of emissions in the Krasnoyarsk District from livestock animal populations was calculated. In both regions, an unusually high twig bark pH and an abnormal species composition for A. sibirica canopy were found (e.g. Physcia aipolia, P. dubia, P. tenella, Phaeophyscia sp., Melanelia exasperatula and Candelariella vitellina), with P. tenella (East Sayan) and M. exasperatula (West Sayan) as dominants. The results confirm that the distribution of lichen species on Abies sibirica twigs is a valuable indicator of current changes in atmospheric conditions. © 2008 British Lichen Society.

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Издание

Журнал: Lichenologist

Выпуск журнала: Vol. 40, Is. 3

Номера страниц: 243-256

ISSN журнала: 00242829

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