Abstract
Character of radionuclides 90Sr and 137Cs for their distribution between over-ground and underground parts phytomass of the airwater plants — Typha angustifolia and Phragmites australis and Glyceria maxima depend on their phase of development. 137Cs were mostly accumulated in the underground parts phytomass of the airwater plants — Typha angustifolia, Phragmites australis and Glyceria maxima L. From 1986 to 1993 we estimated the amount of radionuclides (about 22800 MBq 90Sr and 323000 MBq 137Cs) withdrawn from water and bottom sediments by die airwater organs Typha angustifolia in the Kiev reservoir. The result obtained provided for a better understanding of role of highest aquatic plants in the redistribution of radionuclides in hydroecosystems. In addition, they offer a possibility of associations of higher aquatic plants for water purification from radiocontamination. It is determined that Communities with emergent airwater plants take the most effective part in processes of self purification of basins from radioactive contamination. Cenoses formed by association of airwater plants — Typha angustifolia and Phragmites australis played the major role in water self-purification from radionuclides.
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