新疆伊犁州农用土壤中Cu和Zn的含量分布  

Analysis on Cu and Zn Concentrations in Agricultural Soils of Ili District,Xinjiang Autonomous Region,China

作　　者：杨景娜[1] 黄青青[1] 范荣霞 李花粉[1] 罗新湖 宋萍 乔玉辉[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100193 [2]新疆伊犁州农业技术推广总站,新疆伊宁835000

出　　处：《农业资源与环境学报》2015年第1期8-13,共6页Journal of Agricultural Resources and Environment

基　　金：国家科技支撑计划项目(2007BAC15B05);国家科技支撑计划项目(2008BADA4B01);公益性行业(农业)科研专项(200903015)

摘　　要：调查研究了新疆伊犁州土壤中Cu和Zn的含量水平，为该地区绿色食品和有机食品的基地建设提供指导。在新疆伊犁州8县采集了600个农用表层土壤样品，应用AAS分析测定了土壤样品中Cu和Zn含量。结果表明，采集的伊犁州农用土壤中Cu和Zn的平均含量分别为28.68、83.17 mg·kg-1，范围值分别为11.07~59.90、39.58~160.40 mg·kg-1，其中Cu约有85%的数据分布在20~40 mg·kg-1之间；Zn有90%分布在60~110 mg·kg-1之间。另外，8县中特克斯县土壤中的Cu含量普遍较其他县高；而Zn在8县的差异不大。所有检测的土样样品中Cu和Zn的含量均没有超过国家土壤环境质量标准中二级标准（GB 15618—1995），但是Cu和Zn含量均值比伊犁州背景值分别增高了7%和21%。此外，伊犁州土壤中Cu和Zn的含量水平均符合我国有机产品标准（GB/T 19630—2011）和绿色食品产地环境质量标准（NY/T 391—2013）对产地环境的要求。The aim of this work is mainly to investigate the contents of copper（Cu）and zinc（Zn）in agricultural soils to provide basic infor-mation for the establishment of green and organic production base in Ili District, Xinjiang Autonomous Region. 600 topsoil samples of the a-gricultural land were collected from eight counties of Ili District, and the contents of Cu and Zn were determined by AAS after microwave di-gestion. The statistics analysis showed that the mean contents of Cu and Zn in the agricultural soils of Ili District were 28.68 mg·kg-1 and 83.17 mg·kg-1, respectively. The concentrations of Cu in the agricultural soils of Ili District ranged from 11.07 mg·kg-1 to 59.90 mg·kg-1, 85%of which ranged from 20 mg·kg-1 to 40 mg·kg-1;and the concentrations of Zn in the agricultural soils of Ili District ranged from 39.58 mg·kg-1 to 160.40 mg·kg-1, 90%of which ranged from 60 mg·kg-1 to 110 mg·kg-1. Furthermore, compared the Cu and Zn contents of the tested soils among the eight counties, Cu contents in Tekes County were higher than other counties, while Zn contents showed little difference. The con-tents of Cu and Zn in the tested soils were all below the threshold values that were established in the national environmental quality standard for soils（secondary standards, GB 15618—1995）, but about 7%and 21%were higher than the Cu and Zn background values of soil in Ili District, respectively. Furthermore, the concentrations of Cu and Zn in soils of Ili District accord with the environmental requirements for or-ganic and green production base regulated by national standard of organic products（GB/T 19630—2011）and industrial standard of green food（NY/T 391—2013）.

关 键 词：伊犁州 农用土壤 铜 锌 空间分布 

分 类 号：X825[环境科学与工程—环境工程]