Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65, 51-59

https://doi.org/10.11118/actaun201765010051
Published online 2017-02-28

Metal Pollution of Forest Phytomass from Uranium Industry in Czech Republic and Its Ecological Management Perspectives

David Juřička1, Libor Mikl2,3, Marcela Muchová1, Hana Cihlářová1, Jan Hladký4, Zdena Rosická1, Jitka Novotná1, Radka Frýzová1, Martin Brtnický4, Jindřich Kynický1

1Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Czech Republic, Zemědělská 1, 613 00 Brno, Czech Republic
2Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65 Brno, Czech Republic
3Masaryk University, Faculty of Science, Department of Botany and Zoology, Kotlářská 267/2, 611 37 Brno, Czech Republic
4Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic

The paper is focused on the issue of metals migration within the forest environment affected by deep mining of metals and the possibility how to immobilize them using an environment-friendly method. First, the paper presents the information about metal content in the tree leaves in alluvial recipients polluted by metals from uranium deep mining at Dolní Rožínka, the Czech Republic. X-ray fluorescence analysis of dried leaves results showed the increased content of Cu, Fe, Mn, Ni, Rb, Sr, Zn and U; it corresponds to the most seriously polluted areas in the world comparing with the scientific literature. However, statistically, we did not succeed to demonstrate in none of areas of interest the element heterogeneity between the upper, middle and lower streams segments. Element habitat homogeneity can be caused by current stand species composition where Picea abies L. dominates and this fact results in the negative impact on the soil pH since it is a primary factor of metals immobilization in the ecosystem and their transformation into toxic variations. Within the area of interest, there is demonstrated positive effect of reconstruction of forest stands, which are close to the dominating deciduous trees, especially Fagus silvatica L. This management change in the selected interested forest stands can result in Ca supply of up to 39 kg.ha-1 from strictly natural sources, which might be a perspective alternative to liming.

Funding

This research was supported by the Ministry of Education, Youth and Sports of the Czech Republic under the project CEITEC 2020 (LQ1601).

References

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