期刊论文

中文

安徽农业科学

0517-6611

2013

32

12589-12591+12663

10.13989/j.cnki.0517-6611.2013.32.039

湖南省科技厅计划项目（2012RS4035）； 湖南省自科基金（13JJ4070）； 湖南农业大学创新性试验计划项目（XCX12039）；

本校为第一机构

[目的]为矿区污染土壤的合理利用提供一条有效的途径。[方法]通过盆栽试验,研究20个龙须草居群对重金属Cd、Pb的积累特征。[结果]在Cd 10 mg/kg、Pb 1 000 mg/kg的复合污染下,20个居群在长势和重金属含量间均有显著差异。1/3居群长势良好,而另有1/3居群枯黄严重。居群间2种重金属含量在0.01水平具有显著意义,同一居群根茎叶含量也存在0.05水平显著差异,根的含量大于地上部分。根茎叶中同一重金属元素含量没有显著相关性,而两元素之间存在正相关。[结论]综合比较长势情况和重金属含量,可以筛选出湖北丹江居群、贵州兴义居群和云南金平居群3种典型耐性居群进行下一步的应用研究。

[ Objective ] The research aimed to provide an effective method of the rational utilization of polluted soil in mining area. [ Method ] A pot experiment was conducted to study cadmium （Cd） and lead （Pb） accumulation of Eulaliopsis binata in 20 populations. [ Result] There were significant differences on the growth vigor and heavy metal concentrations in E. binata populations under combined pollution of Cd 10 mg/kg and Pb 1 000 mg/kg. One-third populations were good in the growth vigor and the other one - third changed yellow. Cd and Pb conc...