西山天然草地土壤——菊科植物系统铅铬分布特征  

Distribution Characteristics of Pb and Cr in Soil-Compositae System in Xishan Hill

作　　者：刘云华[1] 殷彩霞[2] 张仙[3] 彭莉[2] 李静[2] 卜玉涛[1] 赵艳[1] 赵红梅[1] 

机构地区：[1]云南农业大学基础与信息工程学院,云南昆明650201 [2]云南大学化学科学与工程学院,云南昆明650091 [3]云南农业大学经济管理学院,云南昆明650201

出　　处：《广州化工》2011年第21期122-124,共3页GuangZhou Chemical Industry

摘　　要：通过对昆明西山菊科植物和天然草地土壤中铅、铬含量的测定,再经统计学分析,结果表明昆明西山受试植物对铅富集能力比对铬强,其中有5种植物对铅的相对吸收系数Ar>1表现对Pb的富集,余下9种则表现对Pb的稀释。受试菊科植物中除了风毛菊外,对铬的相对吸收系数均小于1,呈现出铬在土壤配分关系中的稀释作用。The contents of Pb and Cr in compositae and natrul grassland soils in Xishan hill in Kunming city were analyed,then statistically analyzed.Results showed that its abilities of enrichment of lead was stronger than chromium.The relative absorption coefficients of lead 5 species was Ar1,for Pb enrichment.Another rest 9 species showed the dilution of Pb.Ecexept the compositae Saussurea,others relative absorption coefficients of chromium were less than 1 and showed the chromium dilution in distribution relations of the soil

关 键 词：土壤 菊科植物 铅 铬 分布特征 

分 类 号：X592[环境科学与工程—环境工程]