首页> 外文期刊>Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes >Uptake of metals by food plants grown on soils 10 years after biosolids application
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Uptake of metals by food plants grown on soils 10 years after biosolids application

机译:生物固体施用10年后土壤中生长的食用植物对金属的吸收

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摘要

Potentially hazardous trace elements such as Cd, Cu, Cr, Ni and Zn are expected to accumulate in biosolids-amended soil and remain in the soil for a long period of time. In this research, uptake of metals by food plants including cabbage, carrot, lettuce and tomato grown on soils 10 years after biosolids application was studied. All the five metals were significantly accumulated in the biosolids-amended soils. The accumulation of metal in soil did not result in significant increase in concentrations of Cu, Cr and Ni in the edible plant tissues. However, the Cd and Zn concentrations of the edible tissues of plants harvested from the biosolids receiving soils were significantly enhanced in comparison with those of the unaffected soils. The plant uptake under Greenfield sandy loam soil was generally higher than those under the Domino clayey loam soil. The metal concentration of edible plant tissue exhibited increasing trends with respect to the concentrations of the ambulated metals. The extents of the increases were plant species dependent. The indigenous soil metals were absorbed by the plants in much higher rates than those of the biosolids-receiving soils. It appeared that the plant uptake of the indigenous soil-borne metal and the added biosolids-borne metals are independent of one another and mathematically are additive.
机译:潜在的有害微量元素(例如Cd,Cu,Cr,Ni和Zn)有望在经过生物固体改良的土壤中积聚,并在土壤中长期保留。在这项研究中,研究了在施用生物固体10年后在土壤上生长的包括甘蓝,胡萝卜,生菜和番茄在内的食用植物对金属的吸收。所有五种金属均在经过生物固体改良的土壤中大量积累。土壤中金属的积累并未导致可食植物组织中Cu,Cr和Ni的浓度显着增加。但是,与未受影响的土壤相比,从接受土壤的生物固体中收获的植物的可食组织中的Cd和Zn浓度显着提高。绿地沙质壤土下的植物吸收通常高于多米诺黏土壤土下的植物吸收。食用植物组织中的金属浓度相对于带走金属的浓度表现出增加的趋势。增加的程度取决于植物种类。植物吸收的本地土壤金属的吸收率比生物固体接收土壤的吸收率高得多。似乎植物对土生土金属和添加的生物固体土金属的吸收相互独立,并且在数学上是累加的。

著录项

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  • 作者

    Yanying Bai; Weiping Chen;

  • 作者单位

    Department of Earth Sciences, University of California, Riverside, California, USA;

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China;

    Department of Environmental Sciences, University of California, Riverside, C;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 00:57:58

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