作　　者： ; ;

机构地区： 昌吉学院

出　　处： 《城市环境与城市生态》 2008年第2期34-37,共4页

摘　　要： 对上海市5种不同功能区土壤重金属进行调查分析,研究结果表明,上海城市土壤中Cr、Cu、Pb、Zn含量均很高,Mn、Fe含量与背景值差别不大;除Mn、Fe以外,其他重金属在不同功能区分布差异都很大。各重金属形态分布规律并不完全相同,Cr、Pb、Zn、Mn、Fe的形态均以残渣态为主,Cu的形态以有机结合态为主,与前人研究结果有所不同,这揭示出:随人类活动干扰的加剧,重金属的活性也加强了。各重金属活性大小表现为:Cu>Mn、Zn>Pb>Cr>Fe;Cr、Pb、Zn、Fe的活性均表现为在商业区最大,除Mn、Fe外,其他重金属的活性在各功能区表现出明显的差异。 The heavy metals in urban soil of five different functional zones were analyzed in Shanghai.The results revealed that the contents of Cr、Cu、Pb、Zn in urban soil of Shanghai were high.The spatial distribution of heavy metals had obvious differences in different functional zones except for Mn and Fe of which contents were no significantly different from background values.The distribution patterns of chemical form of heavy metal were not completely the same.The chemical forms of Cr、Pb、Zn、Mn、Fe were mostly in residual form except for Cu mainly composed of organic form,which was partly different from past results and indicated that the activity of heavy metals increased by the intensive human activities.The activity order of heavy metals showed: Cu>Mn、Zn>Pb>Cr>Fe.The activity of each heavy metal was obviously different in different functional zones except for Mn and Fe,and activity of Cr、 Pb、 Zn、 Fe was maximum in commercial zone.

关 键 词： 上海 城市土壤 重金属 含量 赋存形态

领　　域： [环境科学与工程]