Vertical distribution of 137Cs in alluvial soils of the Lokna River floodplain (Tula oblast) long after the Chernobyl accident and its simulation
- Авторы: Mamikhin S.1, Golosov V.1,2, Paramonova T.1, Shamshurina E.1, Ivanov M.1
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Учреждения:
- Moscow State University
- Kazan Federal University
- Выпуск: Том 49, № 12 (2016)
- Страницы: 1432-1442
- Раздел: Degradation, Remediation, and Conservation of Soils
- URL: https://journals.rcsi.science/1064-2293/article/view/223622
- DOI: https://doi.org/10.1134/S1064229316120103
- ID: 223622
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Аннотация
Profiles of vertical 137Cs distribution in alluvial meadow soils on the low and medium levels of the Lokna River floodplain (central part of the Plavsk radioactive spot in Tula oblast) 28 years after the Chernobyl fallout have been studied. A significant increase in the 137Cs pool is revealed on the low floodplain areas compared to the soils of interfluves due to the accumulation of alluvium, which hampers the reduction of the total radionuclide pool in alluvial soils because of radioactive decay. The rate of alluvium accumulation in the soil on the medium floodplain level is lower by three times on average. An imitation prognostic model has been developed, which considers the flooding and climatic conditions in the region under study. Numerical experiments have quantitatively confirmed the deciding role of low-mobile forms in the migration of maximum 137Cs content along the soil profile in the absence of manifested erosion–accumulation processes.
Об авторах
S. Mamikhin
Moscow State University
Автор, ответственный за переписку.
Email: svmamikhin@mail.ru
Россия, Moscow, 119991
V. Golosov
Moscow State University; Kazan Federal University
Автор, ответственный за переписку.
Email: gollossov@rambler.ru
Россия, Moscow, 119991; Kazan, 420008
T. Paramonova
Moscow State University
Email: gollossov@rambler.ru
Россия, Moscow, 119991
E. Shamshurina
Moscow State University
Email: gollossov@rambler.ru
Россия, Moscow, 119991
M. Ivanov
Moscow State University
Email: gollossov@rambler.ru
Россия, Moscow, 119991