On plot 5 on the upper Pacific slope, vertical translocation of clay indicated a soil of the Udalf suborder.
The soils of the study area have been mostly classified as Udands, Udepts and Udalfs. Udands were typically found on the less inclined parts of the transect (plot 1, the flat section of plot 2, the Western half of plot 4).
The dominant soils are mainly Inceptisols, Ustochrepts, Aridisols, Alfisols, Udert, Udalf, and Ultisols in terms of the Soil Taxonomy of the USDA (Shi et al.
Datasets in the 50 published papers (Appendix A) covered 76% of the total croplands in eastern China, with >8500 soil sample measurements, representing paddy soil (Inceptisols) and upland soils (Ustochrepts, Aridisols, Alfisols, Udert, Udalf, and Ultisols).