Soil aggregates with different localization of radionuclides—(a) only on the aggregate surface, (b) only in the intraped space, and (c) uniformly distributed throughout the aggregate volume—have been obtained under laboratory conditions, which has allowed separately assessing the roles of different aggregate parts in the uptake of radionuclides by plant roots and the reaggregation rate of the soil material. The uptake rate of the radionuclides localized on the surface of soil aggregates, especially 137Cs, by plants manifold exceeds their uptake observed at the localization of pollutants throughout the aggregate volume or only in their intraped material. The input rate of radionuclides into plants decreases with time. For 137Cs, this decrease is due to the strengthening of the sorption fixation of the radionuclide (about 15%) and the reaggregation of the soil material (85%). Under natural conditions, at a depth of 10 cm in the dark gray forest soil of a forest belt, aggregates 7–10 mm in size are subjected to 40–75% destruction and reaggregation on the average within a year, which corresponds, with consideration for the statistical dispersion of the initial data, to the aggregate lifetime of 1.5 to 3 years.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price excludes VAT (USA)
Tax calculation will be finalised during checkout.
A. S. Anisimov, N. I. Sanzharova, and R. M. Aleksakhin, “On the forms of occurrence and vertical distribution of 137Cs in the soils affected by the Chernobyl NPP disaster,” Pochvovedenie No. 9, 31–40 (1991).
A. F. Vadyunina and Z. A. Korchagina, Methods for Studying Soil Physical Properties (Agropromizdat, Moscow, 1986) [in Russian].
V. R. Williams, Soil Science. Arable Farming with Basics of Soil Science (Sel’khozgiz, Moscow, 1939) [in Russian].
V. R. Williams, “Strength and binding capacity of soil structure,” Pochvovedenie, Nos. 5–6, 23–35 (1935).
Yu. A. Polyakov, Radioecology and Soil Deactivation (Atomizdat, Moscow, 1970) [in Russian].
N. I. Sanzharova, S. V. Fesenko, K. B. Lisyanskii, V. K. Kuznetsov, T. N. Abramova, V. A. Kotik, “Forms and accumulation dynamics of 137Cs in crops after the accident at the Chernobyl nuclear power plant,” Eur. Soil Sci. 30(2), 129–134 (1997).
V. O. Targulian, T. A. Sokolova, A. G. Birina, A. V. Kulikov, L. K. Tselishcheva, Organization, Composition, and Generais of a Soddy Pale-Podzolic Soil on Mantle Loam. Analytical Study (X Int. Congr. Soil Sci., Moscow, 1974).
A. D. Fokin and S. P. Torshin, “Method of studying the degradation of soil macroaggregates based on the self-absorption of 137Cs β-radiation,” Eur. Soil Sci. 46(4), 386–392 (2013).
A. D. Fokin, S. P. Torshin, and M. Kaupenjohann, “The formation of initial gradients of 137Cs concentrations in soils at the aggregate level,” Eur. Soil Sci. 36(8), 826–832 (2003).
R. Horn, “Die bedeutung der aggregierung fur die druckfortpflanzung in boden,” Zeits. Pflanzenernahr. Bodenk. 150, 13–16 (1987).
A. T. Kayser, W. Wilcke, M. Kaupenjohann, and J. D. Joslin, “Small-scale heterogeneity of soil chemical properties. I A Technique for rapid aggregate fractionation,” Zeits. Pflanzenernahr. Bodenk. 157, 453–458 (1994).
Original Russian Text © A.D. Fokin, S.P. Torshin, Yu.M. Bebneva, R.A. Gadzhiagaeva, Yu.I. Zolotareva, M.I. Umer, 2014, published in Pochvovedenie, 2014, No. 12, pp. 1416–1425.
Rights and permissions
About this article
Cite this article
Fokin, A.D., Torshin, S.P., Bebneva, Y.M. et al. Input of 137Cs and 90Sr into plants from the surface of soil aggregates and the intraped space. Eurasian Soil Sc. 47, 1198–1206 (2014). https://doi.org/10.1134/S1064229314120023
- radioactive contamination
- dark gray soil