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Volume 16, issue 1 | Copyright

Special issue: Ecology at the Interface

Web Ecol., 16, 81-87, 2016
https://doi.org/10.5194/we-16-81-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Short communication 12 Apr 2016

Short communication | 12 Apr 2016

Comparison of heavy-metal bioaccumulation properties in Pinus sp. and Quercus sp. in selected European Cu deposits

Peter Andráš1,2, Ingrid Turisová1, Giuseppe Buccheri1, João Manuel Xavier de Matos3, and Vojtech Dirner2 Peter Andráš et al.
  • 1Faculty of Natural Sciences, Matej Bel University, Banská Bystrica, Slovakia
  • 2VŠB – Technical University Ostrava, Ostrava – Poruba, Czech Republic
  • 3Laboratório Nacional de Energia e Geologia, Beja, Portugal

Abstract. Heavy-metal contamination of Pinus pinaster, P. sylvestris, Quercus robur, and Q. rotundifolium was studied in four abandoned historic Cu deposits from Italy (Libiola, Caporciano), Portugal (São Domingos), and Slovakia (L'ubietová). The highest Cu and Mn contents in anthropogenic soil were described in Libiola and Caporciano whereas the highest Pb, Zn, As, and Sb contents in São Domingos. The anthropogenic soil in L'ubietová shows the highest Co contents. The area of São Domingos is the most acidified. There are important differences between the bioaccumulation of plants from individual deposits. Bioavailability of the heavy metals is generally independent of the pH values. The high Ca and Mg contents in soil are able to block the transport of heavy metals to the plant tissues. The bioconcentration factor values of all plant taxa, in all deposits, indicate a predominant strategy of excluders. Only Ag shows excellent bioconcentration ability. In L'ubietová, Pinus sylvestris has a strategy as an accumulator of Pb (2.43) and Zn (2.49); Pinus pinaster of Mn (4.97), Cd (1.85), and Co (5.62) and Quercus rotundifolium of Mn (3.54) in São Domingos. The predominantly low translocation factor values indicate that in most cases the heavy metals are accumulated in roots; only in a few rare cases do they migrate to shoots (e.g. Zn in Pinus sp. from all localities, Co in P. pinaster in São Domingos).

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This research compares the heavy-metal contents in Pinus pinaster, P. sylvestris, Quercus robur, and Q. rotundifolium in contaminated Cu deposits from Italy (Libiola, Caporciano), Portugal (São Domingos), and Slovakia (Ľubietová). The bioavailability of the heavy metals is not pH controlled, but high Ca and Mg contents in soil inhibit the metal incorporation to the plants. The plants are excluders (bioconcentration factor < 1), so they are suitable only for phytostabilization.
This research compares the heavy-metal contents in Pinus pinaster, P. sylvestris, Quercus robur,...
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