Содержание и распределение металлов в гранулометрических фракциях почв овражной системы бассейна р. Протва

Самонова, О.А.; Асеева, Е.Н.

Авторы: Самонова О.А., Асеева Е.Н.
Сборник: Экология речных бассейнов. Труды VII Международной научно-практической конференции
Год издания: 2013
Место издания: ВГУ им. А.Г. и Н.Г. Столетовых г. Владимир
Первая страница: 283
Последняя страница: 287
Аннотация: Surface soil samples collected in various parts of a gully system in the Protva basin (south-eastern part of Smolensko-Moskovskaya Upland) were partitioned into particle size fractions (1-0,25, 0,25-0,05, 0,05-0,01, 0,01-0,001, <0,001mm) and concentrations of Mn, Cu, Ni, Co, Cr, Zn, Pb, Ti, Zr, Fe associated with various particle size fractions have been analyzed. Clearly defined relationship between fraction size and metal concentrations is typical of Ti and Zr. The highest levels of Ti were found in all silt fractions, while concentration of Zr showed its highest values only in coarse silt and in some cases in fine sand fraction depending on its mineralogical composition and abundance of accessory minerals. Such metals as Mn, Co, Ni, Cr, Zn show high concentrations in clay fractions. The maximum loads of Cu, Pb were found in medium and fine silt fractions. Similar concentrations of Fe were found in coarse and medium sand and in silt fraction. The levels of Co and Ni in some cases are similar in sand fraction and medium and fine silt but in some cases they are higher in sand. Concentrations of the metals vary differently in each particle size fraction. It was found that fоr the majority of metals the variations are diminishing from coarser to finer fractions.
Добавил в систему: Асеева Елена Николаевна

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Содержание и распределение металлов в гранулометрических фракциях почв овражной системы бассейна р. Протвастатья

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