We reported in an earlier paper that the forest soils from quartz porphyry in the central mountain region were strongly podzolised. Our survey was continued on the area of andesite and volcanic ash of ONTAKE adjacent to the quartz porphyry area.<br> The parent materials of soils on ONTAKE mountain side are basic volcanic rocks (two pyroxene andesite, olivine-augite, basaltic andesite, agglomerate lava) and volcanic ash. Elevation of surveyed area varies from 1000 meters to 2000 meters above sea level. The climatic condition is considered to be similar to the quartz porphyry area, the mean annual temperature is 5_??_10°C, and the precipitation is 2500_??_3500 mm.<br> Soils from andesite are more weakly podzolised than those from quartz porphyry, pH value of surface soil is very low, and exchangeable bases are almost leached out; but the leaching and accumulation of sesquioxides are not so evident as in the case of podzolic soil from quartz porphyry.<br> On the lava plateau, moderately moist podzolic brown forest soil and weakly dried podzolic brown forest soil occur, and on the lower foot slope of the plateau, the slightly wetted podzolic brown forest soil is found. They are associated by a CATENA. (fig. 1. 2.).<br> Their profiles are very similar to Brown forest soil (weakly dried Bc-soil), moderately moist (Bn-soil) or slightly wetted (BE-soil), but almost all of them are slightly podzolised.<br> They may be supposed to belong to Gray brown podzolic soil or Brown podzolic soil, but the authors advocate calling them Podzolic (or Alpine) brown forest soil.<br> The morphological features of Podzolic brown forest soil from andesite are as follows: A₀ layer is 3_??_4cm thick, and constructed by F layer 1cm thick and crumblike structured greasy H layer 1cm thick, under L layer 1_??_2cm thick. pH value of A₀ layer is almost 4.5<br> A₁ horizon is brown-black, 5_??_10cm thick, and crumb-like or blocky structure and sometimes gray-brown eluvial block is recognized.<br> A₂ horizon is blackish-brown, 10_??_20cm. thick, and nutty structure develops. Sometimes the surface of soil block is covered by a slightly rusty-colored iron accumulation.<br> B horizon is dark-brown or brown, 20_??_30cm. thick, and massive. Texture is light clay or heavy clay. Sometimes, the lower part of this horizon is dark colored.<br> C horizon is light brown or yellowish brown, very compact and massive heavy clay, and contains fragments of andesite gravel.<br> Soils from volcanic ash are distributed on the gentle slope of the eastern side of ONTAKE mountain. Their morphological features are as follows:<br> A horizon is well developed, dark or black colored, 40_??_60 cm thick, crumb structure or blocky structure, and texture is somewhat silty light-clay.<br> B horizon is brown, massive, and contains a small amount of pumice.<br> On the grass-field, Ando-soil (Black soil) occurs, and in the forest, podzolilc blackish soil is found. Ando-soil on the grass-field is not podzolised, but in the forest, soils are slightly podzolised.<br> pH value of the soil from volcanic ash is a little higher than the other soil, sesquioxides contained in each horizon are more than in the other soil. In the forest, the soils from volcanic ash are sometimes podzolized, but not so strongly podzolised as in the case of podzol from quartz porphyry. The eluvial horizon of the podzolic soil from volcanic ash in the forest is very thin, and the illuvial horizon is very dark, black, or rusty-black colored.