安徽农业科学2011，Vol.39Issue(25)：15615-15618,4.
水生植被重建对沉积物Pb·Fe迁移转化的影响
Effect of Aquatic Vegetation Reconstruction on Migration and Transformation of Pb and Fe in Sediments
摘要
Abstract
Sediments of two urban rivers (Liwa River, Caoyang River) after aquatic vegetation reconstruction are studied using modified BCR sequential extraction procedure. The concentrations of Pb, Fe and TOC in 0 - 10 cm layer and 10-20 cm layer are analyzed. The results show that total Pb in sediments is reduced after revegetation, however, Pb has identical distribution in iron and manganese oxides fractions, which accounted for 70% - 80% of total amount in this study. That means Pb has higher activities and is still harmful to environment. The Pb and Fe associated with iron and manganese oxides have good correlations with each other, that shows the iron and manganese oxides formed by root radial oxygen have a greater impact on migration of Pb. Different fractions of Pb and Fe have good correlation with TOC, too.关键词
湿地植物/沉积物/迁移转化Key words
Aquatic vegetation/Sediments/Migration and transformation分类
资源环境引用本文复制引用
杜璟,邓泓..水生植被重建对沉积物Pb·Fe迁移转化的影响[J].安徽农业科学,2011,39(25):15615-15618,4.基金项目
上海市自然科学基金(08ZR1406800). （08ZR1406800）
