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本文运用美国土壤系统分类原则和方法,研究了分布于山东半岛一带和河南南阳盆地的六个土壤剖面的发生特征和分类。供试土壤的割面单一体化明显,为A-C土体构型。土壤粘粒含量高,且富含蒙脱石类粘土矿物,线性膨胀系数大于0.1。割面中多交叉状裂隙和楔形结构体,有滑擦面和应力胶膜。盐基高度饱和。有机质含量不高。氮、磷含量低。这些土壤划归变性土土纲、半旱变性土亚纲,文中还有亚纲以下各级分类和命名。
In this paper, the principles and methods of soil system classification in the United States were used to study the characteristics and classification of six soil profiles distributed in the Shandong Peninsula and Henan Nanyang basins. The cuttings for the test soil showed a single integration, which is the A-C soil structure. Soil clay content is high, and rich in montmorillonite clay minerals, linear expansion coefficient greater than 0.1. Cross-section of the cross-shaped cracks and wedge-shaped structure, with sliding surface and the stress film. Salt-based highly saturated. Organic matter content is not high. Nitrogen, phosphorus content is low. These soil are classified as degenerate soil earth, semi-arid degeneration soil sub-class, the text also sub-class below the classification and naming.