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Uptake of toxic heavy metals by rice (Oryza sativa L.) cultivated in the agricultural soil near zhengzhou city, people's republic of china

机译:中华人民共和国郑州市附近农业土壤中种植的水稻(Oryza sativa L.)对有毒重金属的吸收

摘要

Higher accumulation of toxic heavy metals in rice grown in agricultural soil may lead to health disorder. A field experiment was carried out to investigate uptake and translocation of Cd, Cr, Pb, As, and Hg by different parts of rice plant in various irrigation regions. The results showed the rice grain contained significantly lower amounts of five metals than straw and root in all sampling sites. Rice root accumulated Cd, As, and Hg from the paddy soil. Moreover, the rice plant transported As very weakly, whereas Hg was transported most easily into the straw and grain among studied heavy metals.
机译:在农业土壤中种植的水稻中较高含量的有毒重金属积累可能导致健康失调。进行了田间试验,研究了水稻在不同灌溉区域的不同部位对镉,铬,铅,砷和汞的吸收和转运。结果表明,在所有采样点,稻谷中的五种金属含量均明显低于稻草和根。水稻根部从水稻土中积累了镉,砷和汞。此外,在所研究的重金属中,水稻植物的As迁移非常弱,而Hg最容易迁移到稻草和谷物中。

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