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以献县淮镇、南皮县刘八里、东光东曲庄三个类型区为代表,研究了河北省东南部冲积平原土体构型及其属性,1996~2000年定位观测表明,0~100 cm土体的质地层次结构对土壤的理化性状和生产性能有重大影响,均质型和蒙金型土体构型是建设高产田的基础,而夹沙型和叠夹型则呈现低产类型;在0~100 cm土体的质地层次中中壤-粘土质地厚度之和大于60 cm,具有阻滞表层土壤盐化的关键作用。
This paper studied the soil structure and its characteristics of alluvial plain in the southeastern Hebei Province, represented by three types of areas, namely, Huai Town, Nanpi County, Liu Ba Li and Dong Guang Dong Qu Zhuang. From 1996 to 2000, The texture structure of the 100 cm soil layer has a significant effect on the physicochemical properties and productivity of the soil. The homogenization and the Mongolian-type soil structure are the foundation for the construction of high yield fields, while the sand-holding and folder-type types have low yield types . The sum of the thickness of medium-clay soil texture in 0-100 cm soil layer is greater than 60 cm, which plays a key role in retarding the salinity of surface soil.