[Genetical aspects of background content of mobile forms of heavy metals and 137Cs in Kharkiv oblast's soils]
2004
Kozyr, S.V.
Investigated are the background content of mobile 137Cs radiocesium and mobile forms of copper, zinc and lead in the soils of various genesis and granulometric composition: dark grey podzolized heavy loam soils, podzolized heavy loam and light clay chornozems, usual deep light clay chornozems. Tabulated is 137Cs content in the arable layer of Kharkiv oblast's soils that are genetically different. The investigations showed that in the arable soils the maximum 137Cs content is observed in the arable layer, hence its compounds move into the subsurface horizon. The leading role in forming the background values of the content of mobile forms of the heavy metals and micronutrients belongs to the soils' genesis and granulometry. At the same granulometric composition in the podzolized soils, as compared to the typical chornozems, the content of mobile forms of zinc increases while lowering the content of mobile forms of the copper takes place. In the typical and usual deep chornozems the heavening of the granulometric composition increases the content of mobile forms of the copper and practically gives no effect on the parameters of zinc accumulation. The content of mobile forms of lead does not depend on soils' special genetical and granulomeric features
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