应用生态学报2013，Vol.24Issue(1)：78-82,5.
外源铁对铅污染土壤中宽叶香蒲铅积累的影响
Effects of exogenous iron on lead accumulation in Typha latifolia from a lead-contaminated soil
摘要
Abstract
A pot experiment was conducted to study the effects of adding 100 and 500 mg·kg-1 of exogenous iron ( Fe) on the lead (Pb) accumulation in Typha latifolia growing on a soil with 0, 100, 500 and 1000 mg·kg-1 of Pb, respectively. In treatment 500 mg Fe·kg-1, the Pb concen-tration in T. latifolia shoots and roots was higher, compared with that in treatment 100 mg Fe·kg-1. When the soil Pb concentration was 1000 mg·kg-1, the Pb concentration in T. lati-folia shoots and roots in treatment 500 mg Fe·kg-1 increased by 33.7% and 50. 5% , respectively, compared with that in treatment 100 mg Fe·kg-1 . The exchangeable Pb concentration in rhizo-sphere soil was 77. 0% -114. 6% higher in treatment 500 mg Fe·kg-1 than in treatment 100 mg Fe·kg-1. When the soil Pb concentration was 0, 100 and 1000 mg·kg-1, the root dry mass in treatment 500 mg Fe·kg-1 had a significant decrease, compared with that in treatment 100 mg Fe·kg-1. It was suggested that adding appropriate amount of Fe to Pb-contaminated wetland soil could increase the availability of soil Pb and improve the Pb accumulation in plants.关键词
铁/铅/宽叶香蒲/铅积累/湿地Key words
Fe/Pb/Typha latifolia/Pb accumulation/wetland分类
农业科技引用本文复制引用
钟顺清,徐建明..外源铁对铅污染土壤中宽叶香蒲铅积累的影响[J].应用生态学报,2013,24(1):78-82,5.基金项目
湖南省自然科学基金项目(09JJ4021)、衡阳师范学院科学基金项目(10B70)和公益性农业科研专项(201203045-2)资助. （09JJ4021）
