Petrusenko V. Modeling of radionuclide migration in typical slope and mountain ecosystems of Ukraine

In the dissertation the following basic results of modelling of radioecological processes in slope and mountain ecosystems are submitted. For block-scheme of ecosystems were created for the analysis of ecological safety in typical of slope ecosystems. The parameters of speeds of transitions of the pollutant (Cs-137) were chosen based on the actual data and the theoretical research. According to those parameters, modelling of the processes of migration and relocation of radionuclides in a typical slope using the box models method was carried out. It was shown that slope ecosystems redistributed radionuclides guite actively and quickly. As a result of modelling it has become possible to estimate and to predict the dynamics of radionuclide distribution in a typical slope ecosystem. The block-scheme of slope ecosystem was created for the analysis of the efficiency of counter-measures on protection of ecosystems from radioactive contamination. Modelling of processes of radionuclide migration in slope ecosystems was conducted by the application of the box models method with the use of counter-measures. The results of modelling allow estimation and selection of the optimum algorithm of counter-measures choice. The developed boxes models of the typical slope ecosystems allowed us to carry out the estimation of the collective doze and radiation risk for the population that uses these ecosystems. The calculation of expected damages from the load dozes and the estimation of collective and individual risks and damages was carried out. The algorithm and the scheme of insurance protection of the population for the given type of ecosystems were proposed. It was shown that the given algorithm could be applied for insurance protection of people in other types of ecosystems and radiation situations.