Heavy metals content in the Fallopia genus in Central European Cities - study from Wroclaw and Prague

• Autorzy: Soltysiak J. , Berchova-Bimova K. , Vach M. , Brej T.

Warianty tytułu

PL

Zawartość metali ciężkich w gatunkach z rodzaju Fallopia na obszarze miast środkowej Europy badania z Wrocławia i Pragi

• Języki publikacji: EN

Abstrakty

EN

In this study highly invasive plant species from the Fallopia genus (Fallopia japonica and Fallopia ×bohemica) were investigated for their ability to accumulate heavy metals. Samples were collected from two large cities: Wroclaw and Prague. The content of Cr, Cd, Fe, Pb and Zn in soils covered by Knotweed taxa was determined. Afterwards, plant samples were collected from the places where the largest amounts of toxic metals were found. Rhizomes, roots and leaves of chosen samples of both Fallopia taxa have been treated separately, as different parts of the plant accumulate metals. The investigation has shown that in urban conditions Knotweed taxa spread on soils with higher than natural concentration of toxic metals. Only the chromium amount was similar to the normal range. In both species heavy metals were accumulated mainly in roots and rhizomes, but their concentration was significantly higher in Fallopia japonica underground parts than in the hybrid. There were no differences between species with metals content in the aboveground parts of the plant body. The results suggest that special attention should be paid to Cr. In all analyzed plants, high chromium content was found, while the Cr amount in soils samples was close to natural.

PL

Celem powyższych badań była ocena akumulacji metali ciężkich: Cd, Cr, Fe, Pb i Zn przez inwazyjne gatunki z rodzaju Fallopia (Fallopia japonica i Fallopia ×bohemica). Materiał badawczy pobrano ze stanowisk rdestowców zlokalizowanych na terenie dwóch aglomeracji: Wrocławia i Pragi. Zawartość metali ciężkich okre.lono w próbach glebowych, a nastêpnie w nadziemnych i podziemnych częściach wybranych roślin. W analizowanych glebach wykazano wyższą w porównaniu z naturalną zawartość kadmu, żelaza, ołowiu i cynku oraz zbliżoną do naturalnej koncentrację chromu. Głównymi organami akumulującymi toksyczne pierwiastki były korzenie i kłącza rdestowców. Stężenie metali ciężkich w podziemnych organach Fallopia japonica było znacznie wyższe niż w Fallopia ×bohemica. Spo.ród badanych metali na szczególną uwagę zasługuje chrom. Pomimo iż, poziom Cr w materiale glebowym nie przekraczał zawartości naturalnej, rośliny zgromadziły znaczne jego ilości.

Słowa kluczowe

EN

heavy metal content; Fallopia japonica; European city; Wroclaw; Prague; Japanese knotweed; urban area; invasive plant; plant species

• Wydawca: -
• Czasopismo: Acta Botanica Silesiaca
• Rocznik: 2011
• Tom: 07
• Opis fizyczny: p.209-218,ref.

Twórcy

autor

Soltysiak J.

• Department of Botany and Plan Ecology, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland

autor

Berchova-Bimova K.

autor

Vach M.

autor

Brej T.

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