[目的]研究不同蒿类植物对重金属Cd的积累特性.[方法]以潼关县黄金生产区及附近不同地区生长的6种蒿类植物(叉枝蒿、青蒿、水蒿、菌陈蒿、莳萝蒿、艾蒿)为研究对象,测定并分析蒿类植物体内的Cd含量,以便确定建立人工生态系统的植物种类.[结果]水蒿-13茎中Cd含量为6种植物中最高,其值为42.55mg/kg,叉枝蒿-11叶片中Cd含量次之,其值为30.59 mg/kg;2个样区中的叉枝蒿对Cd的转移能力为6种植物中最高,叉技蒿-11的转移系数为2.1,叉枝蒿-3的转移系数为1.96;随着土壤中重金属含量的增加,植物体内对重金属的富集有增加趋势.[结论]该矿区可选用水蒿和叉枝蒿进行重金属Cd的生态修复.%[Objective] The research aimed to study accumulation property of the cadmium in different Artemisia plants. [Method] Six kinds of Artemisia plants around the golden mining area at Tongguan County were selected as research object, including Artemisia divaricata (Pamp. ) Pamp, Artemisia annun L. , Artemisia selengensis, Artemisia capillaries, Artemisia anethoides Mattf. and Artemisia argyi. By determining cadmium content in different Artemisia plants, we established the plant species for artificial ecosystem. [Result ] Among six kinds of Artemisia plants, the stem of Artemisia selengensis-13 had the best absorbing capacity to cadmium, and the content was 42. 55 mg/kg. The cadmium content in leaf of Artemisia divaricata (Pamp. ) Pamp was the second, and the content reached 30. 59 mg/kg, Artemisia divaricaia (Pamp. ) Pamp in two areas had the best transfer capacity to cadmium. The transfer coefficient of Artemisia divaricata (Pamp. ) Pamp-11 was 2. 1 and Artemisia divaricaia (Pamp. ) Pamp-3 was 1.96. Absorbing capacity for the same Artemisia plant increased as cadmium content increasing. [Conclusion] We could select Artemisia selengensis and Artemisia divancata (Pamp. ) Pamp to conduct ecological restoration of the cadmium in the mining area.
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