几种菊科花卉植物对铅的富集特征  

Pb Accumulative Characteristics of Several Lead Accumulation of Ornamental Asteraceae

作　　者：崔爽[1] 刘艺芸 单新宇[1] 王佳华[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《福建农业学报》2014年第4期385-388,共4页Fujian Journal of Agricultural Sciences

基　　金：国家自然科学基金(31100375);辽宁省科学技术计划资助项目(2012212001)

摘　　要：为寻找铅污染土壤净化和景观化材料,采用盆栽方法,研究3种菊科观赏花卉在铅污染条件下对铅的富集特征。结果表明3种花卉中观赏向日葵地上部和根部吸收富集铅的含量最大,积累铅能力最强,其次为百日草,勋章菊吸收积累铅能力最弱。在Pb浓度为1 000mg·kg-1时,观赏向日葵和百日草耐性较强,可用作铅污染土壤的稳定修复植物。To study the environmental Pb toxicity , decontamination and beautification , a pot-experiment was conducted with three ornamental flowering plants to determine their Pb-absorption properties .The results showed that Helianthus annuus L .had a greater capability of accumulating Pb in shoots and roots than either Zinniaelegans Jacq or Gozania splendens .H .annuus L .andZ .elegans Jacq exhibited strong endurance to high concentration of Pb ,and were considered to be potentially applicable for soil decontamination and proper maintenance .

关 键 词：铅污染土壤 植物修复 花卉 

分 类 号：X171[环境科学与工程—环境科学]