结合区域基层分类研究提出了区域性土壤形成特征的概念 ,指出它们既是土壤基层分类的鉴别标准 ,也是决定区域土壤基础质量的重要因素。在分析典型区域土壤形成特征的基础上 ,探讨了它们在基层分类和土壤质量评价要素中的共性和应用 ,指出这有助于全面地理解土壤质量而不是简单地将其等同于耕层养分状况。介绍了服务于土壤基层分类和质量评价的公用数据库的结构 Combined with regional grass-roots classification research, the concept of regional soil formation characteristics was proposed, pointing out that they are not only the identification criteria of soil grass-roots classification, but also the important factors that determine the soil foundation quality. Based on the analysis of soil formation characteristics in typical areas, their commonalities and applications in grassroots classification and evaluation of soil quality are discussed. It is pointed out that this helps to understand soil quality comprehensively rather than simply equating it with nutrient status . The structure of common database serving soil classification and quality assessment is introduced