为了正确判断成土过程中粘粒机械迁移状况,不与母质在沉积过程中粘粒沉积特征相混淆,为此借助土壤质地的研究,对本区冲积母质发育的土壤,应用心/表土粘粒量比率,以示剖面中粘粒变化,阐述浅见。一、应用粘粒量比率的条件通常发育年幼的土壤,不论其沉积母质颗粒是否均一,质地剖面中的质地层次,其固有粘粒含量,总是趋于稳定状态,随着成土年龄的增长,土壤发育也日趋完善。因此,粘粒淋溶在剖面中的分布,也随淋溶强度与深度而增加。粘粒迁移现象,是在水分参与下,促使表土颗粒分散,并在下渗过程中,使粘粒发生机械淋溶,直至水分下渗终止而淀积, In order to correctly judge the mechanical migration of clay during the soil-forming process, it is not confused with the deposition of clay particles during the deposition of the parent material. Therefore, with the help of the study of soil texture, Ratio, to show the clay in the profile changes, explain shallow see. First, the application of the condition of the proportion of clay particles usually young soil development, regardless of whether the deposition of the parent material particles are homogeneous, the texture of the texture section, the intrinsic clay content, always tends to steady state, with the age of the soil Growth, soil development is also maturing. Therefore, the distribution of clay leaching in the profile also increases with leaching strength and depth. Mud migration, is the participation of water, prompting the topsoil particles dispersed, and in the infiltration process, the mechanical leaching of clay occurs, until the end of the water infiltration and deposition,