青海栽培山茛菪重金属元素特征
Features of Heavy Metal Elements of Anisodus tanguticus Cultivated in Qinghai

许璟瑛周国英陈桂琛 ^*

文摘	采集4-6年生人工栽培山莨菪,测定其根部铅、镉、砷、汞4种重金属元素含量.结果表明,4-6年生栽培山莨菪,重金属元素平均含量水平由高到低依次为:砷,镉,铅,汞.并且各种重金属的含量随着年份和生物量的增加而有所积累.砷、铅和汞含量的季节变化规律较明显,而镉含量则趋于稳定
其他语种文摘	The Anisodus tanguticus(Maxim.)Pascher cultivated for 4-6 years,in Qinghai Province were collected and the content of heavy metal elements Pb was analyzed by Atomic Absorption Spetrometer, and the contents of Cd,As,Hg were measured by Atomic Fluorescence Spectrometer. The results showed that in the root of 4-6 year-growth cultivated Anisodus tanguticus, the average contents of As,Cd,Pb and Hg were decreased in order;and the content of each elements increases by year. Meanwhile, apart from Cd, As,Pb and Hg, the contents of all other elements had a remarkable change with season
来源	湖北农业科学 ,2010,49(5):1143-1145 【扩展库】
关键词	栽培山莨菪 ; 重金属元素 ; 季节
地址	中国科学院西北高原生物研究所, 西宁, 810008
语种	中文
文献类型	研究性论文
ISSN	0439-8114
学科	农作物
基金	国家中西部专项基金项目 ; 中国科学院知识创新工程重点项目
文献收藏号	CSCD:3940452