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报道了中国黄土中40个元素的背景值,并以F、Cr、Mn、Co、Ni、V、Cu、Zn、As、Se、Cd、Pb、Hg等13个元素为例,讨论了其在黄土高原的分布与含量。利用趋势面分析等数理统计方法,揭示了黄土中元素的某些环境地球化学特征及元素背景值的分异规律。结果表明,黄土的元素背景值具有三维的分异特征,黄土的质地及沉积的生物气候环境黄土是影响背景值分异的主要因素。为中国黄土的风成学说提供了佐证。
The background values of 40 elements in Chinese loess were reported. Taking 13 elements as F, Cr, Mn, Co, Ni, V, Cu, Zn, As, Se, Cd, Pb and Hg as examples, Distribution and Content of Loess Plateau. By means of mathematical statistics such as trend surface analysis, some laws of environmental geochemical characteristics and elemental background value of elements in loess are revealed. The results show that the elemental background value of loess has three-dimensional differentiation characteristics. The loess texture and the deposited bioclimatic loess are the main factors that influence the background value differentiation. It provided evidence for the theory of Chinese loess.