Abstract:Fengqiu County is a typical alluvial plain area that lays the middle and lower of the Yellow River. Different texture layer type, thickness and its combination in soil profile, which are important factors affect soil water and fertilizer storage and supply capacity. Through the field survey of 39 soil profiles and 113 soil samples drilled to get the first hand data. Based on two basic features of layer texture types and their position in the profile to define characteristic texture layer, in the study area nine kinds of characteristic texture layers have been established. Nine kinds of characteristics texture layers combinations have been divided automatically by applying the fuzzy c-means algorithm model through taking the missing features and the thickness of the characteristic texture layers as the basis of data, which have been observed in the soil profile and soil drilled samples in the study area. Combined with statistical methods, it is to achieve the spatial distribution of nine typical soil texture combinations by the single category membership map and the maximum membership map. They revealed the combination characteristics of different texture layers in the vertical direction and the distribution of different texture profile configuration in the horizontal direction,which provided more objective and a wealth of basic information for regional land quality evaluation, and assessment of potential productivity, and improved utilization practice of soil.