试论潮土基层分类

潮土是直接发育在河流沉积物上,受地下水活动影响,经不断耕种熟化而成的一类土壤.国际上通常称为冲积土或河积土.根据成土母质特性及时间因素所反映的成土过程及其属性,分别进行土纲、土类和亚类等高级分类单元的划分,至于基层分类的各级单元尚缺乏系统研究资料以供参考.

ON THE CLASSIFICATION OF BASIC CATEGORIES OF FLUVO-AQUIC SOILS

The fluvo-aquic soils widely distributed in the great plain of north China are developed on the recentalluvium under the influence of seasonal fluctuation of ground-water.Owing to the variation of tezture and water regime of soil the degree of soil development is quite different,which leads the occurrence of the different patterns of land use.The present article deals with the study on the classification of basic categoriea of fluvo-aquic soils.The soil families of fluvo-aquic soils are mainly disting uished on the basis of the tezture of alluvium on which the soils are developed,and the teztural profile may reflect the characteristics of soil formation processes,the distribution and location of genetic horizons and the hydrological conditions,and these characteristics can influence the development and utilization of the soils.