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为了正确表达土壤中微量成分的含量水平,必须研究这些成分在土壤中的分布类型。黑土是吉林省的主要土类,本文就这一土类的7种元素的分布类型进行了探讨。在此基础上,得出表达这些元素含量的更加确切的统计量,从而对黑土中这些元素的背景含量得到准确地表达。根据大量的分析数据和对分布类型的研究,分析了黑土中Cu,Zn,Pb,Cr,Ni,As,Hg等元素的背景含量水平和分布特征,对于这些分布类型的形成,从土壤发生学的角度,提出了初步看法。
In order to correctly express the content levels of trace elements in soil, the distribution types of these elements in soils must be studied. Black soil is the main soil in Jilin Province. This paper discusses the distribution types of seven elements in this soil. On this basis, more accurate statistics are obtained on the content of these elements, so that the background content of these elements in black soil can be accurately expressed. Based on a large amount of analysis data and research on distribution types, the background content and distribution characteristics of Cu, Zn, Pb, Cr, Ni, As, Hg and other elements in the black earth were analyzed. For the formation of these distribution types, Point of view, put forward a preliminary view.