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利用中子活化分析等现代分析技术,对黄土高原土壤中39个常量、微量元素在土壤中的含量及其分布规律进行了研究。结果表明,黄土高原土壤基本上保留了黄土母质的主要元素地球化学特征。黄土在风力搬运过程中的分选沉降规律和土壤发生的生物气候环境是影响土壤元素含量地域分异的主要因素。这一研究也为中国黄土的风成学说提供了土壤地球化学方面的佐证。
By means of modern analytical techniques such as neutron activation analysis, the content and distribution of 39 macronutrients and trace elements in soils of the Loess Plateau were studied. The results show that the loess plateau basically retains the major element geochemical characteristics of loess parent materials. Separation and settlement of loess during the wind transport process and the biological climate of the soil environment is the main factor affecting the regional differentiation of soil elements. This research also provides evidence of soil geochemistry for the theory of loess in China.