Micromorphological Characteristics of Yellow-Brown Forest Soils and Red-Yellow Soils

摘要

Micromorphological characteristics of Yellow-Brown Forest Soils and Red-Yellow Soils, both of which developed on granitic parent materials in South-West Japan, were compared. No clay coatings were recog- nized in the thin sections of Typical Yellow-Brown Forest Soils, indicating that clay translocation has not occurred in these soils. While Illuvial Paddy Soil derived from Yellow-Brown Forest Soil has clay coatings in the B-horizon, the formation of the clay coatings may be associated with water saturation during some period of years.