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Migration and Accumulation of Cadmium in Paddy Soil

机译:水稻土中镉的迁移和积累

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Soil samples were collected from a paddy field at Fulong village, Huanjiang County, and Cd concentrations in soils were determined. Soil Cd risk was evaluated using Nemerow index method. The results showed that the content of cadmium in soil layer of 0~20cm is 2 times than the level two standard values and 6 times than the background value of Huanjiang soil. In addition, the soil layer of 20~100cm in cadmium content did not exceed the national level two standard values, but is about 2 times the background value of soil in Huanjiang county. In addition, Cadmium pollution is mainly focused on the soil surface.
机译:从福隆村,华江县的稻田收集土壤样品,测定土壤中的CD浓度。使用Nemerow指数法评估土壤CD风险。结果表明,0〜20cm的土壤层中镉的含量比两个标准值水平的2倍,而不是华江土壤的背景值6倍。此外,镉含量20〜100cm的土壤层不超过国家水平的两个标准值,但是淮南县土壤背景价值约为2倍。此外,镉污染主要集中在土壤表面上。

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