对黄土中埋藏古土壤的研究有过许多报道。但对黄土风化过程中元素的变化讨论则不多。笔者是在近年来对陕西洛川黄土剖面工作的基础上,讨论了不同类型古土壤中元素的含量与分布,古土壤剖面中元素的变化。并将古土壤的化学组成与黄土母质进行比较,进而论述了在古气候变迁的影响下,黄土剖面中元素迁移、积聚的地球化学特征。这对探讨黄土的堆积环境和生物气候条件的演变,以及地层划分等均有十分重要意义。 There have been many reports on the study of the buried ancient loess in loess. However, there is not much discussion on the change of elements in loess weathering. Based on the work of Luochuan loess profile in Shaanxi Province in recent years, the author discussed the content and distribution of elements in different types of ancient soils and the changes of elements in ancient soil profiles. Then, the chemical composition of paleosol was compared with that of loess parent materials, and then the geochemical characteristics of element migration and accumulation in the loess section under the influence of palaeoclimate changes were discussed. This is of great significance to the discussion of the evolution of loess accumulation environment and bioclimatic conditions and the stratigraphic division.