The influence of soil – plant factors on the uptake of Cs by two plant species

To investigate Cs uptake by two different plant species grown on soils with contrasting physicochemical properties, a greenhouse pot experiment was conducted. Soil in each pot contaminated with 40 ug g-1 of Cs in the form of CsCl by spraying the solution in layers. After an equilibration period of two months, the soil of each pot appropriately sowed with seeds of Lolium perenne and Trifolium pratense plants.

According to the results, Trifolium pratense plants exhibit higher values of the weighted mean of Cs concentration than Lolium perenne plants. Concerning the effect of soil properties, the results showed that as the ratio exchangeable soil K to exchangeable soil Cs at the end of the each cultivation increased, Cs uptake by plants decreased. The concentration of Cs was lower in roots than in shoots in both plants, representing the significant translocation of Cs in the upper part of plants and the risk for transport of this pollutant to the food chain by grazing animals.



Copyright: © Aristotle University of Thessaloniki
Quelle: 2nd International Conference 2009 (Juni 2009)
Seiten: 6
Preis: € 5,00
Autor: F. Giannakopoulou
Dr D. Gasparatos
C. Haidouti

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