摘要
以聊城市136个土壤监测点重金属含量为研究对象,基于SPSS软件,通过主成分分析和聚类分析进行了研究。结果表明:相对于区域和国家土壤环境质量标准值,聊城市土壤重金属含量以Cu、As、Hg污染较为严重,县市郊区靠近工业园区的重金属富集明显;As与Cd、Co、Cu、Ni、Zn呈正相关,而与Cr、Hg、Pb呈负相关;元素间的相关性分析和聚类分析表明,Zn相对于其他元素较为独立,Pb、Cr、Hg、As、Cd、Cu等元素含量受人类活动影响较大。
Using the content of heavy metals in 136 soil monitoring points as the research objects,based on SPSS,principle component analysis and clustering analysis were used to study the heavy metals content characteristics.The results showed that the pollution of heavy metals Cu,As and Hg in Liaocheng City was heavier,compared with the regional and national criteria of soil environment quality.The heavy metals accumulation in the suburban areas of counties and cities near the industrial park was obvious.It showed a positive correlation with As,Cd,Co,Cu,Ni and Zn and showed a negative correlation with Cr,Hg and Pb.The correlation analysis and clustering analysis among elements showed that Zn was a relative independent element and the contents of Pb,Cr,Hg,As,Cd,Cu were greatly affected by human activities.
出处
《安徽农业科学》
CAS
北大核心
2010年第12期6436-6437,6508,共3页
Journal of Anhui Agricultural Sciences
基金
山东省自然科学基金项目(Y2006E02)
山东省优秀中青年科学家奖励基金项目(2007BS08026)
