安徽农业科学2017，Vol.45Issue(24)：4-8,18,6.
一种新的锶超积累植物——串叶草
Silphium perfoliatum:A New Hygrophyte with Strontium Hyperaccumulator Properties
摘要
Abstract
[Objective] The aim was to screen out hygrophyte with hyperaccumulator properties which could grow in pollution area.[Method] The field sampling method was adopted.On the basis of a nuclear facility decommissioning domestic factory, the content of 137Cs and 90Sr was determined in both dominant species (17 species, 9 families) and soil in polluted areas,and dominant species screening and phytoremediation tests were carried out.[Result] It was demonstrate that Silphium perfoliatum was a kind of 90Sr-hyperaccumualtor, and the maximum contents of 137Cs and 90Sr were 5.06×106 Bq/kg and 3.29×104 Bq/kg respectively, which were both above the maximum values of international regulations.The screening tests indicated that the enrichment and the transfer coefficience to 137Cs of Silphium perfoliatum were both below 1.00, while the coefficience to 90Sr were 3.25 and 2.95 respectively, which were both above 1.00.Silphium perfoliatum had the characteristic of 90Sr-hyperaccumualtor and was able to remedy 5.9% of 90Sr in the soil.[Conclusion] So Silphium perfoliatum can achieve the phytoremediation of contaminated soil with 90Sr, which can provide reference for the repair work of pollution area.关键词
铯-137/锶-90/放射性污染/植物修复技术/富集性能Key words
137Cs/90Sr/Radioactive contamination/Phytoremediation technology/Enrichment of performance分类
资源环境引用本文复制引用
赖捷,邱孟琦,成建峰,冷阳春,庹先国..一种新的锶超积累植物——串叶草[J].安徽农业科学,2017,45(24):4-8,18,6.基金项目
国家自然科学基金重点项目(4163000426) （4163000426）
四川省应用基础研究计划项目(2014JY0206) （2014JY0206）
西南科技大学研究生创新基金项目(16ycx002). （16ycx002）
