淮南矿区不同植物重金属修复能力研究

On the Repairing Capacity of Heavy Metals in Different Planting in Huainan Mining Area

土壤重金属污染是当今面临的一个较为重要环境问题,而土壤重金属污染的植物修复则是治理污染环境的重要手段之一,以淮南市某煤矿复垦区为例,根据不同植物的重金属富集系数及其转移系数,研究分析不同植物对不同重金属的富集能力;结果表明:车前草对Cu、Ni、Cd、Hg和As元素的富集能力较强,狗尾巴草对As、Ni和Cd元素有较强的富集能力;苦苣菜对Cu、Mn、Ni、Cd、Hg和As元素具有较强的富集能力;芦苇对Cu、Ni、Cd和Hg元素的富集能力较强;车前草、狗尾巴草对Hg元素的转移能力强;苦苣菜对重金属元素的转移能力较差;芦苇对重金属元素(除了Ni以外)的具有较强转移能力。

Soil heavy metal pollution is a really important environmental problem ,and the phytoreme-diation of the soil heavy mental pollution is one of the important means to control contaminated environ-ment .Taking a coal mine reclamation area in Huainan as an example in this paper ,according to the en-richment coefficients and its transfer coefficient of heavy metals in different plants ,the accumulation abili-ty of different plants for different heavy metal is analyzed .The results show that ：the accumulation ability of plantain for Cu ,Ni ,Cd ,Hg and As is stronger ,the accumulation ability of Sonchus oleraceus for Cu , Mn ,Ni ,Cd ,Hg and As is stronger ,the accumulation ability of reed for Cu ,Ni ,Cd and Hg is is stron-ger ;the transfer ability of plantain and dog＆#39;s tail grass for Hg is stronger ,the transfer ability of Sonchus oleraceus for heavy metals is poorer ,the transfer ability of reed for heavy metals （in addition to Ni） is stronger .