摘要
[目的]研究钨尾矿农田重金属空间相关性与空间分布规律。[方法]在利用等离子体光谱仪对土壤样品重金属进行测定的基础上,运用地统计方法,对钨尾矿农田土壤重金属含量和分布特征进行系统分析。[结果]土壤重金属Cr、As、Zn、Cd、Pb、Cu具有很强的空间相关性,Hg具有中等强度空间相关性。在空间分布上,Cd、Cu含量变化特征相似,在离钨矿区较近的区域Cd、Cu含量最高,以此为中心,沿东偏南至东北偏西方向递减。[结论]该研究可为研究区的土地合理利用、农业可持续发展及农田土壤污染防治与修复治理提供科学依据。
[Objective]The research aimed to study the spatial correlation and spatial distribution of the heavy metal in tungsten mine tailings field.[Method]Based on the detection of heavy metals in the soil samples,the contents of soil heavy metal and the distribution around and tungsten mine tailing were analyzed with the statistical methods.[Result]The heavy metals of Cr,As,Zn,Cd,Pb,Cu had a strong spatial correlation,and Hg had a moderate spatial correlation.The content change of Cd was similar to that of Cu in the characteristics of the spatial distribution.Cd and Cu content decreased from the tungsten mine as a center along the east south to west-northeast.[Conclusion]The study could provide a scientific basis for the reasonable use of the land,the sustainable agricultural development and the pollution prevention and the remediation of the soil.
出处
《安徽农业科学》
CAS
北大核心
2011年第23期14039-14040,14048,共3页
Journal of Anhui Agricultural Sciences
基金
江西省教育厅基金项目(GJJ10485)
关键词
钨尾矿
重金属
半方差函数
空间分布
Tungsten mine tailings
Heavy metals
Semivariance function
Spatial distribution
