摘要
以盆栽法研究了 Dendronthena morifolium Tzvel,Sabinaprocumbens,osa chinensis Jacq等 1 0种植物对土壤 Cd的吸收及其生物净化效应 .试验结果表明 :在每千克土壤 (风干重 )含 Cd30 mg的处理条件下 ,短期内未发现植物生长明显受影响现象 .在土壤 -植物系统中 ,经过 50 d的植物吸收 ,土壤中的 Cd下降幅度最小值为 0 .3542 mg/L,最大值为6.3784mg/L ,植物体烘至衡重后 ,茎和叶按 2∶ 1混合 ,Cd的含量上升幅度最小值为 1 .771 8mg/L,最大值为 87.880 7mg/L.Rosa chinensis Jacq,Cardenia Jasminoides Euis,Asparagus cochinensis Merr等有较强的抵抗镉污染能力和富集镉的作用 。
The absorption of soil cadmium and the purification efficiency by Dendronthena morifolium Tzvel,Sabina procumbens and Rosa chinensis Jacq and so on were studied with pot culture experiment.The result of the experiment is that there is no significant effect on the growth of these plant in a short time under the concentration 30 mg/kg(wind dry soil).After 50 days' absorption the Cd contents in soil has decreased about 0.3542～6.3784 mg/L.While the Cd contents in plants has increased about 1.7718 to 87.8807 mg/L.The results show that Rosa chinensis Jacq and Cardenia Jasminoides Euis have higher absorption capacities for Cd than the others and they can be used as renovating plants of Cd soil.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
2000年第3期34-38,共5页
Journal of Hunan University:Natural Sciences
