Concentrations of long-lived artificial radionuclides in the moss-lichen cover of mountain plant communities |
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Authors: | M G Nifontova |
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Institution: | (1) Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos'mogo marta 202, 620144 Yekaterinburg, Russia |
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Abstract: | Specific features of90Sr and137Cs accumulation in individual lichen species and in the moss-lichen cover of plant communities were studied in some mountain
ranges of the Polar and Northern Urals. The results showed that the amounts of radionuclides in lichens and mosses of mountain
plant communities are at the level characteristic of the moss-lichen cover of flat ecosystems, and their accumulation depends
on90Sr and137Cs input with the global radioactive fallout. The radionuclide contents in lichens and mosses sampled from different mountain
rocks, slopes, and elevations fluctuate around this level. The differences depend both on the structural and functional properties
of plants and on the climatic and ecological features of their environment. |
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Keywords: | lichens moss-lichen cover dynamics of radioactive contamination |
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