植物吸收污染土壤中镉的规律  

Study on the Uptake Cadmium in the Contaminated Soil by Plants

作　　者：梁娜 Liang Na(Shanxi Xinyirong Environmental Protection Technology Co.,Ltd.,Yangquan,Shanxi 045000,China)

机构地区：[1]山西欣一荣环保科技有限公司,山西阳泉045000

出　　处：《山西水土保持科技》2023年第1期40-42,共3页Soil and Water Conservation Science and Technology in Shanxi

摘　　要：选取黑麦草和羽衣甘蓝两种植物进行盆栽试验,并对25、50、75、100、125、150 mg/kg 6个浓度等级下两种植物地上部分镉含量进行了测定与分析,结果表明:黑麦草吸收、富集镉的能力较弱,羽衣甘蓝在土壤中镉浓度超过125 mg/kg时,地上部分镉含量超过100 mg/kg,但其富集系数和转运系数均小于1,两种供试植物均不是理想的修复镉污染土壤的超积累植物。Selected Lolium perenne and Brassica oleracea Linnaeus var.acephala to performed model pot-culture under various density of cadmium.Through the determination and analysis of cadmium content in the aerial part of the two plants under six concentration grades of 25,50,75,100,125 and 150mg/kg,the results showed that the ability of Lolium perenne to absorb and enrich cadmium was weak,and the cadmium content of Brassica oleracea Linnaeus var acephala in the soil exceeded 100 mg/kg when the cadmium concentration in the soil exceeded 125 mg/kg,but its BCF and TF were less than 1.Neither of the two test plants was hyperaccumulator for the remediation of cadmium-contaminated soil.

关 键 词：镉 超积累植物 植物修复 

分 类 号：X53[环境科学与工程—环境工程]