Abstract
The 226Ra, 232Th, and 40K vertical profiles were studied in relation to the following soil properties: pHH2O, the sum of exchangeable Ca2+ and Mg2+, the saturation with bases, and the content of humus and mobile forms of phosphorus and potassium. An increase in the specific activity of 226Ra, 232Th, and 40K as a result of humus accumulation and the biogenic accumulation of mobile forms of potassium and phosphorus was detected in the 0- to 10-cm layer of the A horizon in the soil under an oak forest. The removal of 226Ra from the middle part of the profile of dark gray forest deep-carbonate soil was recorded. A positive correlation between the specific activity of 226Ra and the total exchangeable bases of Ca2+ and Mg2+ in the A, A(AE), AB, and deeper (B1, B2, and B3) horizons was revealed. This indicates the interrelated behavior of these elements-analogues. The removal of 232Th from the A(AE) horizon and its accumulation in the AB horizon under conditions of local podzolization of dark gray forest soil in a birch forest was observed.
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REFERENCES
Arinushkina, E.V., Rukovodstvo po khimicheskomu analizu pochv (Chemical Analysis for Soils. Handbook), Moscow, 1970.
Baranov, V.I., Morozova, N.G., and Mukhraneli, I.A., Emanation for soils of different genesis, Pochvovedenie, 1968, no. 12.
Vorob’eva, L.A., Teoriya i metody khimicheskogo analiza pochv (Chemical Analysis for Soils: Theory and Methods), Moscow, 1995.
Gil’, T.V., Taskaev, A.I., and Aleksakhin, R.M., Ca and Ba effect onto 226Ra absorption by soils, Pochvovedenie, 1981, no. 11.
Dobrovol’skii, V.V., Osnovy biogeokhimii (Foundations of Biogeochemistry), Moscow, 2003.
Klassifikatsiya i diagnostika pochv SSSR (The USSR Soils: Classification and Diagnostics), Moscow, 1977.
Noskova, L.M., Dynamics of uranium, radium and thorium migration in the components of ecosystems damaged under radium production, Extended Abstract of Cand. Sci. (Biol.) Dissertation, Syktyvkar, 2010.
Praktikum po agrokhimii (Practical Works on Agriculture Chemistry), Mineev, V.G., Ed., Moscow, 2001.
Rodin, L.E. and Bazilevich, N.I., Dinamika organicheskogo veshchestva i biologicheskii krugovorot zol’nykh elementov i azota v osnovnykh tipakh rastitel’nosti zemnogo shara (Dynamic of Organic Matter and Biological Cycle of Ashy Elements and Nitrogen in the Main Types of World Flora), Moscow, 1965.
SanPiN 2.6.1.2523-09. Normy radiatsionnoi bezopasnosti, NRB-99/2009 (SanPiN 2.6.1.2523-09: Stnadards of Radiation Safety, NRB-99/2009), Moscow, 2009.
Sokolova, T.A. and Kuibysheva, I.P., Factors determining compound form and total composition of potassium in grey forest soils, Pochvovedenie, 1989, no. 2.
Taskaev, A.I., Ovchenkov, V.Ya., Aleksakhin, R.M., and Shuktomova, I.I., Forms of 226Ra in soils horizons with its increased concentration, Pochvovedenie, 1978, no. 2.
Titaeva, N.A., Yadernaya geokhimiya (Nuclear Geochemistry), Moscow, 2000, 2nd ed.
Shuktomova, I.I., Titaeva, N.A., Taskaev, A.I., and Aleksakhin, R.M., 238U, 232Th and 226Ra behavior in mountain tundra soils, Pochvovedenie, 1983, no. 8.
Belivermis, M., Kiliç, Ö., Çotuk, Y., and Topcuoğlu, S., The effects of physicochemical properties on gamma emitting natural radionuclide levels in the soil profile of Istanbul, Environ. Monit. Assess, 2010, vol. 163, no. 1–4. https://doi.org/10.1007/s10661-009-0812-1
Dragović, S., Gajić, B., Dragović, R., et al., Edaphic factors affecting the vertical distribution of radionuclides in the different soil types of Belgrade, Serbia, J. Environ. Monit., 2012, vol. 14, no. 1. https://doi.org/10.1039/c1em10457h
Edsfeld, C., The radium distribution in some Swedish soils and its effects on radon emanation, PhD Thesis, Stockholm, 2001.
Greeman, D.J., Rose, A.W., Washington, J.W., et al., Geochemistry of radium in soils of the Eastern United States, Appl. Geochem., 1999, vol. 14, no. 3.
Hinton, T.G., Knox, A.S., Kaplan, D.I., and Sharitz, R., Phytoextraction of uranium and thorium by native trees in a contaminated wetland, J. Radioanal. Nucl. Chem., 2005, vol. 264, no. 2. https://doi.org/10.1007/s10967-005-0731-8
Mahon, D.C. and Mathewes, R.W., Uptake of a naturally occurring radioisotopes by vegetation in a region of high radioactivity, Can. J. Soil Sci., 1983, vol. 63, no. 2. https://doi.org/10.4141/cjss83-028
Tsai, T.L., Liu, C., Chuang, C.Y., et al., The effects of physico-chemical properties on natural radioactivity levels, associated dose rate and evaluation of radiation hazard in the soil of Taiwan using statistical analysis, J. Radioanal. Nucl. Chem., 2011, vol. 288, pp. 927–936. https://doi.org/10.1007/s10967-011-1032-z
Virtanen, S., Vaaramaa, K., and Lehto, J., Fractionation of U, Th, Ra and Pb from boreal forest soils by sequential extractions, Appl. Geochem., 2013, vol. 38, pp. 1–9. https://doi.org/10.1016/j.apgeochem.2013.08.004
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Translated by I. Bel’chenko
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Lipatov, D.N., Manakhov, D.V., Shcheglov, A.I. et al. Distribution of 226Ra, 232Th, and 40K in Dark Gray Forest Soils with Different Carbonate Horizon Depth. Moscow Univ. Soil Sci. Bull. 74, 123–130 (2019). https://doi.org/10.3103/S0147687419030049
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DOI: https://doi.org/10.3103/S0147687419030049