Content, Distribution, and Migration of 238U in Soils of Natural and Technogenic Landscapes of Southern Yakutia
| Autor: | P. I. Sobakin, A. P. Chevychelov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Pollution
media_common.quotation_subject Earth science Soil Science chemistry.chemical_element 04 agricultural and veterinary sciences 010501 environmental sciences Uranium complex mixtures 01 natural sciences Podzol Natural (archaeology) chemistry Content distribution Alluvial soils Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Alluvium 0105 earth and related environmental sciences Earth-Surface Processes media_common |
| Zdroj: | Eurasian Soil Science. 53:117-125 |
| ISSN: | 1556-195X 1064-2293 |
| DOI: | 10.1134/s1064229320010068 |
| Popis: | The contents, distribution in the profile, and migration capacity of 238U in automorphic podburs (Entic Podzols) and hydromorphic alluvial (Fluvisols) soils of natural and human-transformed landscapes of southern Yakutia are analyzed. Human-transformed (technogenic) landscapes of southern Yakutia, including the Elkon uranium deposit area, in particular, are characterized by two distinct types of element migration in soils: the aero-technogenic and the hydro-technogenic migration. These types of element migration determine the level of 238U pollution of soils, the distribution pattern of 238U in the soil profiles, and the proportion between 238U compounds with different migration capacity. The soils subjected to the radioactive contamination are characterized by the increased mobility and migration capacity of 238U isotopes in comparison with the unpolluted soils of natural landscapes. Also, in contrast to automorphic podburs, hydromorphic alluvial soils are characterized by the increased level of radioactive pollution and higher concentrations of mobile uranium compounds. |
| Databáze: | OpenAIRE |
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