土壤胶体的移动性能,是土壤发生、分类以及土壤肥力研究的一个重要方面,以往的工作都是根据分离后的矿质粘粒之化学和矿物学性质对胶体的移动性加以推测的。但粘粒在土壤之中都是与有机质相结合而呈复合体形式,很少单独存在,因而仅从矿质粘粒的性质去推断土壤胶体之移动特征有其局限性,加之对自然状态下胶体移动的研究很少,缺乏土壤胶体 The mobility of soil colloids is an important aspect of the research on soil occurrence, classification and soil fertility. In the past, the colloidal mobility was estimated based on the chemical and mineralogical properties of the separated mineral clay. However, the clay in the soil are combined with organic matter in the form of complex, rarely exist alone, so only from the nature of mineral clay to infer the characteristics of the movement of soil colloids have their limitations, combined with the natural state of colloidal Little research has been done on mobility, lacking soil colloids