昆明西郊行道绿化植物五种有毒重金属元素含量特征分析  

Analysis on the Content of Harmful Elements in Afforest Plants from Suburb Street of Kunming City

作　　者：殷彩霞[1,2] 彭丽娟[1,2] 朱光辉[1,2] 王光灿[1,2] 

机构地区：[1]云南大学化学系 [2]云南大学实验中心

出　　处：《广东微量元素科学》1999年第6期61-63,共3页Trace Elements Science

摘　　要：对昆明西郊行道绿化植物“五毒”重金属元素含量特征进行了分析。结果显示，在行道绿化植物中，元素含量的相对离散度为Ｃｄ＞Ａｓ＞Ｈｇ＞Ｃｒ＞Ｐｂ，与含量变化顺序不匹配，元素间仅Ｐｂ与Ｃｒ呈现十分正相关，其余元素间未达显著相关水平，与世界、西藏植物元素含量范围相对照，测试植物中Ａｓ、Ｐｂ、Ｈｇ含量的超标率分别达７０％、９０％、７０％。The characteristics of 5 harmful elements content in afforest plants from Kunming western suburb street were analysed.The order of relative dispersion degree of elements content was Cd>As>Hg>Cr>Pb.Elements content may or may not be directly proportional to the relative dispersion degree.Between Pb and Cr, it showed a very outstanding correlation.Among others elements,the outstanding correlation levels did not be shown.To compare with the world and Xizang,the tested plants that excessed standard percentages attained 70%,90%,70% respectively of As,Pb,Hg in the afforest plants.

关 键 词：行道 绿化植物 重金属元素 昆明市 

分 类 号：S731.8[农业科学—林学] S985.18