Abstract

Sewage sludge that was added to sod–podzolic sandy loam soils 28 years ago determines an increased content and mobility of Zn, Cd, Cu, and Ni compounds and this is most typical for Cd and Zn. Arable soil horizons are most severely polluted, which indicates a low migration rate of heavy metal compounds. The latter are slightly removed from soils by intrasoil flow. This is determined by their chemical properties: low solubility of their compounds and adsorption by mineral and organic soil components, as well as neutral pH values of the soils themselves. Plants grown on contaminated soils are characterized by an increased concentration of heavy metals, which varies from 5 to 7 times, depending on the species of plants and their ability to accumulate heavy metals.

中文翻译：

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污水污泥作为肥料后东莫斯科郊区农地景观的生物地球化学

摘要

28年前，添加到草屑-坡地沙质壤土中的污泥决定了Zn，Cd，Cu和Ni化合物的含量和迁移率增加，这对于Cd和Zn最典型。耕地土壤受到最严重的污染，这表明重金属化合物的迁移率较低。后者通过土壤内流从土壤中轻微除去。这取决于它们的化学性质：其化合物的低溶解度以及矿物和有机土壤成分的吸附，以及土壤本身的中性pH值。在受污染的土壤上生长的植物的特征是重金属浓度增加，其范围是植物种类及其积累重金属的能力的5到7倍。