一种强富集砷的欧洲蕨──能从被污染土壤中萃取砷的耐寒、适应性强的速生植物  

A Fern that Hyperaccumulates Arsenic A hardy, versatile, fast-growing plant helps to remove arsenic from contaminated soils

作　　者：罗彬怡 孙雷 

出　　处：《世界环境》2001年第3期47-47,27,共2页World Environment

摘　　要：我们的研究首次发现一种耐寒的、适应性强的、速生的欧洲免能在短时间内将土壤中大量砷吸收并积累到其复叶之中，它不仅能祛除土壤中不同浓度的砷，还能祛除土壤中不同形态的砷，且欧洲蕨体内高达９３％的砷被富集到复叶，从而使欧洲蕨成为修复土壤砷污染的救星。A versatile, fast-growing brake fern(Pteris vittata) can take up large amount of arsenic into its fronds in a short time. As well as removing arsenic from soils containing different con- centrations of arsenie, brake fern also removed arsenic from soils containing different arsenic species, and up to 93% of the arsenic was concentrated in the fronds. And so we recommend brake fern for use in remediation of arsenic-contaminated soils.

关 键 词：欧洲蕨 强富集性 土壤 砷污染 速生植物 耐寒性 适应性 土壤修复 

分 类 号：X173[环境科学与工程—环境科学] X53