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首页> 外文期刊>Environmental Protection and Natural Resources >The Impact of the Type of Soil Contaminated with Heavy Metals on the Risk of their Translocation to the Consumption Parts of Maize
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The Impact of the Type of Soil Contaminated with Heavy Metals on the Risk of their Translocation to the Consumption Parts of Maize

机译：重金属污染的土壤类型对其向玉米消耗部分迁移的风险的影响

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摘要

The purpose of the research was to examine the extent to which the type of soil co-contaminated with Cd, Pb and Zn affected the accumulation and distribution of these metals in maize; a crop that plays a significant role in feeding of animals and humans. Two 1-year microplot experiments were conducted using four types of soils. The soils were as follows: sandy soil with a low content of organic matter (S1), sandy soil of analogical granu-lometric composition, but with a higher content of organic mat-ter (S2), loess poor in organic matter (L1) and the same loess with its higher content (L2). The differences between the soils in terms of the availability of individual metals for maize and their transport from the roots to the aerial parts were evaluated on the basis of bioaccumulation factors (BF) and translocation indexes (TL). It was found that maize cultivation on the soil poorly pol-luted with Cd, Pb and Zn, regardless of its type, poses the dan-ger of translocation of these metals to the grains in the amounts exceeding the maximum limit in foods. However, the amount of metals accumulated in the grain, as well as in the cobs, do not exclude the use of these plant parts for feed.
机译：该研究的目的是研究被Cd，Pb和Zn共同污染的土壤类型对这些金属在玉米中的积累和分布的影响程度。一种在动物和人类的摄食中起重要作用的作物。使用四种类型的土壤进行了两个为期1年的微图实验。土壤如下：有机质含量低的沙质土壤（S1），类似颗粒状沙质含量的土壤，但有机质含量较高的沙土（S2），黄土有机质较差（L1）含量相同的黄土（L2）。根据生物富集因子（BF）和易位指数（TL），评估了土壤之间在玉米中每种金属的有效性以及它们从根部到地上部分之间的运输差异。人们发现，在Cd，Pb和Zn污染严重的土壤上种植玉米，无论其类型如何，都会使这些金属向谷物中转移的危险超过食物中最大限量。但是，谷物和穗轴中积累的金属量并不排除将这些植物部分用作饲料。

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