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针对大巴山北坡土壤形成、分类和分布中存在的主要问题，在野外调查、室内化验的基础上，结合生物气候带的垂直变化，综合分析认为：黄棕壤、黄褐土之间差异明显，应该在土类以上的级别上区分开来；两类土壤分异的主要原因是母质差异，而非水热条件，故可在同一地带内出现，不存在９００～１０００ｍ的分界线；黄棕壤、黄褐土分布的上界为１２００ｍ．按照系统分类体系，大巴山北坡土壤垂直带谱为粘磐湿润淋溶土＋铁质湿润淋溶土－简育湿润淋溶土－暗沃＋简育冷凉淋溶土。
Based on the field investigation and laboratory tests, combined with the vertical changes of the bioclimatic zone, the main problems existing in the formation, classification and distribution of soil in the northern slope of Daba Mountains are analyzed. The results show that there is significant difference between yellow-brown soil and yellow-brown soil , Should be distinguished above the soil level; the main reason for the difference between the two types of soil is the difference in the parent material, rather than the hydrothermal conditions, it can appear in the same zone, there is no 900-1000m of the dividing line; yellow brown Soil, yellow cinnamon distribution of the upper bound of 1200m. According to the system classification system, the vertical spectrum of the soil in the northern slope of Daba Mountain is the sticky pan wet leaching soil + iron wet leaching soil - simple soil wet leaching soil - dark fertile + simple cold leaching soil.