本文研究了土壤的形成条件和特点，根据《中国土壤系统分类（修订方案）》，所研究的土壤分属均腐土纲和雏形土纲。其中，３个剖面属干润均腐土亚纲中的粘化寒性干润均腐土类暗沃寒性干润均腐土亚类和钙积寒性干润均腐土类暗沃钙积寒性干润均腐土亚类；１个剖面属寒冻雏形土亚纲中的暗沃寒冻雏形土类石灰暗沃寒冻雏形土亚类。 In this paper, the formation conditions and characteristics of soils are studied. According to the “Classification of Soil Systems in China (Revised)”, the soil studied belongs to the classifications of soil homogenates and embryos. Among them, the three sections are dry and moist soil sub-class in the sticky cold Dry Run are mulch dark Wal-cold dry Run-mulberry sub-class and calcium cold dry Run-ming are mulch dark-walled calcium A cold sub-category of cold dry run-off soil; a section is a prototype of frozen soil sub-classes in the sub-Wal-cold soil rutile embryo calcareous walnut soil sub-category.