摘要
对高岭土矿、铜锌矿废弃尾矿的植物分布及体内金属元素的积累进行了调查分析。结果表明,新废弃劣质高岭土,呈酸性,寸草不长,但堆放了5—6年后,稀有植物分布,可生长狼把草(Pennisetumalopecuroides)一种植物;被铜锌矿尾矿污染的土壤,仅生长柔枝莠竹(Microstegiumvimineum(Trin.)A.Camus)、稗草(Echinochloacrusgalli(L.)Beauv.)两种植物;柔枝莠竹能富集锌、锰、铜、铁等离子;稗草可富集锌、锰离子;狼把草可生长在酸性环境,也可富集锌、锰离子。
Both accumulation of metals in vivo in plants and distribution of the plant species growing in porcelain clay abandoned in a selected mine of copper and zinc were investigated. Results showed: (1)there were not any plants growing in newly discarded porcelain clay which was characterized by acidity, but sparse plants, for example, Pennisetum alopecuroides appeared in the porcelain clay stalked for about 5—6 years. (2)two species Microstegium vimineum (Trin.) A.Camus and Echinochloa crusgalli (L.) Beauv. only appeared in soil contaminated by selected-mine of copper and zinc, and (3) Microstegium vimineum (Trin.)A .Camus could accumulate Zn,Fe,Mn and Cu cations, while Echinochloa crusgalli(L.)Beauv. accumulated Zn and Mn cations, pennisetum alopecuroides growing in acidic soil and also could accumulate both Zn and Mn cations.
出处
《农业环境保护》
CSCD
北大核心
2002年第1期60-62,共3页
Agro-Environmental Protection
