Lixisol is a hyponym of alfisol.

As nouns the difference between lixisol and alfisol

is that lixisol is a kind of soil with a subsurface accumulation of low-activity clays and high base saturation while alfisol is an abundant soil order in the usda soil taxonomy, with a clay-enriched subsoil and relatively high native fertility, widely used both in agriculture and forestry.