农业环境科学学报2013，Vol.32Issue(3)：530-538,9.DOI:10.11654/jaes.2013.03.019
杨树和柳树富集Cd、Zn、Pb的品种差异性
Difference in Cadmium, Zinc and Lead Accumulation of Poplar and Willow Species
摘要
Abstract
A soil culture experiment was carried out to investigate the effect of Cd, Zn and Pb combined pollution on biomass, heavy metal concentration and total uptake, bioaccumulation coefficient(BCF), transportation factor(TF) in 14 poplar and willow species. The results showed there were significant differences among the poplar and willow species in biomass of leaf, stem and root, stem height, heavy metal concentration and total uptake, BCF and TF. With an increase in heavy metal concentration in soil culture, heavy metal concentration and total uptake in poplar and willow species increased significantly, and BCF decreased obviously, whereas TF had almost no change. Heavy metal concentration in Populus× euramericana(Dode)cv. 'Nanlin-895' (Nanlin 895), Salix jiangsuensis CL. '61-1' (61-1) and Salix jiangsuensis CL. '795'(795) were very high, the largest Cd and Zn concentration in leaves were detected in 61-1(29.23 mg Cd·kg-1 and 1410 mg Zn·kg-1), but these species showed low metal tolerance and biomass. When biomass and heavy metal concentration were considered together, the heavy metal total uptake of 61-1 and Populusx euramericana(Dode)cv. 'Nanlin-95' (Nanlin 95) was larger in tested species, enrichment ability of heavy metal in them was stronger, and the largest Cd and Zn total uptake in leaves were detected in Nanlin 95 (205.62 μg Cd·plant-1 and 5 897.94 μg Zn·plant-1). 61-1 and Nanlin 95 hold promise for phytoextraction.关键词
杨树/柳树/Cd/Zn/Pb/富集/品种差异Key words
poplar, willow/ Cd/ Zn/ Pb/ accumulation/ species difference分类
资源环境引用本文复制引用
张春燕,王瑞刚,范稚莲,施士争,丁永祯,郭军康,赵玉杰..杨树和柳树富集Cd、Zn、Pb的品种差异性[J].农业环境科学学报,2013,32(3):530-538,9.基金项目
国家自然科学基金项目(40803039) （40803039）
天津市自然基金项目(12JCYBJC14900) （12JCYBJC14900）
林业公益性行业科研专项(201204812) （201204812）
