郴州柿竹园某尾矿区不同层次的土壤重金属含量及优势植物富集特征  

The characteristics of different levels of heavy metal contents and advantages of soil plant enrichment Chenzhou Shizhuyuan tailing area

作　　者：肖玲珑 阳莲[1] 尹纳洁 廖子棋 欧阳倩晖 陈龙[1] 段彦之 李姝[1] 黄熠[2] 陈晓岚[3] 汤银娟[3,4] 

机构地区：[1]湘南学院临床学院,湖南郴州423000 [2]湘南学院化学生物与环境工程学院,湖南郴州423000 [3]湘南学院基础医学院,湖南郴州423000 [4]湘南学院南岭药用资源研究所,湖南郴州423000

出　　处：《湖南文理学院学报（自然科学版）》2017年第3期22-27,共6页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家级大学生创新创业训练计划项目(教高司函[2015]41号-201510545003);湖南省大学生研究性学习和创新性实验项目(湘教通[2015]269号-490);湘南学院大学生研究性学习与创新性实验项目([2015]66号-12);湘南学院"橘井泉香"科技文化节项目(2014KJJ06);中南林业科技大学对口支援湘南学院科技项目(2012XN04)

摘　　要：采用火焰原子吸收分光光度法、富集系数法及转移系数法等方法测定了郴州市柿竹园矿区不同土层中Cu^(2+)、Zn^(2+)、Pb^(2+)、Cd^(2+)的含量以及分析优势植物富集特征,结果表明:不同层次同种重金属的条件下,Zn^(2+)和Cd^(2+)的土壤样本平均含量在4层中的第1层最高,分别达到358.40和907.13 mg/kg;Cu和Pb的样本平均含量为第4层最高,分别达到358.40和907.13 mg/kg;大多优势植物符合超富集植物的部分特征也符合规避型植物的部分特征。该矿区的污染状况较为严重,应按照每一层不同的污染情况及时建立保护及修复措施以减轻环境的污染。Abstract： The flame atomic absorption spectrophotometric method, the enrichment coefficient method and the transfer coefficient method were used for determinating the content of Cu2＋, Zn2＋, Pb2＋ and Cd2＋ of different levels soil in the mining area of Chenzhou City, and analysing the characteristic of dominant plant enrichment. The results show that under the condition of different levels of the same heavy metal, the average content of Zn and Cd of the soil samples are highest in first layer among four layers, reaching 358.40mg/kg and 907.13 mg/kg respectively, and the average content of Cu and Pb are highest in fourth layer, reaching 358.40 mg/kg and 907.13 mg/kg respectively. Most dominant plants not only accord with some parts of hyperaccumulators’ characteristics, but also conform to the characteristics of the avoid-type-plants . The pollution of this area is serious and we should take some protecting andrepairing measures according to different conditions of every layer to alleviate environmental pollution in time.

关 键 词：重金属 富集系数 不同层次 原子吸收分光光度计 

分 类 号：X171[环境科学与工程—环境科学]