Imitation model of 90Sr behaviour in the soil and stand of pineстатья
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Дата последнего поиска статьи во внешних источниках: 16 сентября 2020 г.
Аннотация:The algorithm of display of 90Sr behaviour mechanisms in forest ecosystems by method of
imitating modeling is developed. Distinctive features of algorithm: the 90Sr contents in
vegetation is subdivided into two parts (outside and internal pollution), which dynamics is
considered separately; dynamics of a radionuclide is considered in connection with
dynamics of organic substance; it is supposed, that 90Sr behaviour in plants is similar to Ca
behaviour; the biological availability 90Sr contained in a soil, is integrated function of time
and physico-chemical properties of the given soil. On the basis of offered algorithm the
model is constructed which is used for realization of a number of numerical experiments,
including reconstruction of a situation of pollution of forest ecosystem on grey forest soils
in result of Kyshtym accident. The quantitative estimations of intensity of 90Sr
redistribution between stand components and soil are received. The modern problems of
creation of prognostication models of 90Sr dynamics in the forest ecosystems are discussed.