经过一年多的大规模调查,证实了华北平原的土壤都具有不同的类型和不等程度的发育,其中包括很多土类、亚类和变种,过去简称华北平原土壤为“石灰性冲积土”,是很难反映情况和说明问题的。华北平原的主要成土过程有褐土过程、浅色草甸土过程、沼泽过程和盐土过程。 After more than a year of large-scale survey confirmed that the North China Plain soil has different types and different degrees of development, including many types of soil, subclasses and variants, the former referred to the North China Plain soil as “calcareous alluvial” , It is difficult to reflect the situation and explain the problem. The main soil forming processes in the North China Plain are cinnamon soil process, light meadow soil process, swamp process and saline soil process.