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- Vinichuk, MykhailoSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,Zhytomyr State Technological University (author)
Cs-137 in fungal sporocarps in relation to vegetation in a bog, pine swamp and forest along a transect
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- Elsevier BV,2013
- Elsevier,2024
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- LIBRIS-ID:oai:slubar.slu.se:43222
- https://res.slu.se/id/publ/43222URI
- https://doi.org/10.1016/j.chemosphere.2012.09.054DOI
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- Language:English
- Summary in:English
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- In this study, we estimated the relative importance of vegetation and fungi for radiocesium uptake and biological retention in adjacent bog, pine swamp, and forest. The measurements for Cs-137 activity concentration in sporocarps (i.e. fruitbodies of fungi) and vegetation along a bog to forest transect were combined with complementary published data to calculate estimates. Aboveground vegetation comprised 17.7% of the total fallout-derived radiocesium in the system in bog, 16.5% in pine swamp, and 40.6% in forest. In fungal sporocarps grown along a gradient, Cs-137 activity comprised <0.001% of the total radiocesium for peat bog, <0.02% for pine swamp, and 0.11% for forest. Total Cs-137 activity in sporocarps increased along the gradient due to increased production of sporocarps in the presence of trees from 0.006 (bog), 0.097 (pine swamp) and 0.67 (forest) g dwt m(-2). Based on calculation of the total vegetation biomass and through relationships between fungal biomass in sporocarps and as mycelia in soil, the total Cs-137 activity located in fungi was estimated as 0.1% in bog, 2% in pine swamp, and 11% in forest. An analysis of the time-dependency of Cs-137 in the sporocarps in forest between 1990 and 2011 suggested an ecological half-life for Cs-137 between 8 and 13 years. Although fungi comprised a relatively small fraction of the total radiocesium in the systems, its activity decreased slowly with time, and ecological residence time for Cs-137 in sporocarps of fungi was long, suggesting they will continue to contribute to the accumulation and cycling of this radionuclide in forest. (C) 2012 Elsevier Ltd. All rights reserved.
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- Rosén, KlasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)48621 (author)
- Dahlberg, AndersSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig mykologi och patologi,Department of Forest Mycology and Pathology(Swepub:slu)49728 (author)
- Sveriges lantbruksuniversitetInstitutionen för mark och miljö (creator_code:org_t)
- Sveriges lantbruksuniversitet
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- In:Chemosphere: Elsevier BV90, s. 713-7200045-65351879-1298
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