Behavior of <sup>137</sup>Cs in the System Soil - Rhizosphere - Plant for the Flood Land of the Yenisey as Example
137Cs speciation and distribution in such components of biogeocoenosis of the Yenisei's floodplain as soils, rhizosphere, and plants were studied. Investigation was carried out near the zones affected by the Krasnoyarsk KMCPP. The change of the specific activity of radionuclides with an increase in the distance from the source of pollution was demonstrated, the ratio of the specific activities of radionuclides in soil and in the rhizosphere was followed, and their distribution in plant's body was revealed. The variety of forms of 137Cs occurrence including mobile ones was revealed. On the basis of the results of laboratory experiments, the amount of 137Cs carried out of plants during the flood was calculated.