Abstract
The purpose of this paper is to study the migration and accumulation of 90Sr in vegetative and generative organs of plants: golden currant (Ribes aureum) and cherry plum (Prunus cerasifera Ehrh). Research objectives: 1) 90SrCl2 is artificially deposited on the soil, precipitation imitation (field experiments); 2) planting plants: Prunus cerasifera Ehrh and Ribes aureum to the soil artificially contaminated with 90SrCl2; 3) cultivation and monitoring of the studied plants in the soil artificially contaminated with 90SrCl2. The contamination level of the experimental area was 500 MBq/m2. The possibilities of tree and shrub plant forms (Prunus cerasifera Ehrh; Ribes aureum) to accumulate 90Sr in their vegetative and generative organs were studied. The activity of the beta-emitting radionuclide in the counting samples was measured using the “Progress” software on the Multi-purpose spectrometric complex “Gamma Plus” device (beta path). As a result of research, the accumulation of radionuclides in both studied plants was found. In 2016, the difference in the content of 90Sr between cherry plum and golden currant in bark, wood, leaves, and fruits was 1.6, 1.5, 1.8, and 2.0 times, respectively. Experimental data can be used in the environmental monitoring of the radiation situation in urban areas of the territories allocated for the construction of public, residential buildings and structures, to be the basis for further advanced research in the designated area.
Highlights
Radioactive contamination of territories can occur as a result of various causes, one of them is an anthropogenic factor
Due to the larger volume of the root system and the volume of aboveground mass, cherry plum has a greater accumulation of nuclide in the initial period of research
In the process of plant growth and development, the root system gradually goes deep into the soil, which undoubtedly influenced the nuclide content in the bark of the cherry plum
Summary
Radioactive contamination of territories can occur as a result of various causes, one of them is an anthropogenic factor. Researches in the field of agriculture, aimed at using radioactively contaminated lands for possible growing of agricultural crops, searching for ways to reduce the content of radionuclides in the generative organs of plants were carried out earlier and continue to be carried out [8,9,10,11,12]. There are a lot of scientific works related to the monitoring of areas adjacent to nuclear power plants [13,14]. The purpose of this work is to study the migration and accumulation of 90Sr in vegetative and generative organs of plants: golden currant (Ríbes aureum) and cherry plum (Prunus cerasifera Ehrh). The studies were performed in the field during 2010–2016. 90SrCl2 is artificially introduced onto the soil surface
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