soil type often found in continental interiors with a temperate grassland biome type. Thick grass provides for rich black humus which is extended into the A horizon by fauna during warm summers. Wet spring and early summer leads to leaching. Hot late summer causes capillary action. Up and down movement of water leads to formation of calcium carbonate nodules at about 1m depth.
Geography Dictionary & Glossary for Students \\ ITS Tutorial School (ITS) - Hong Kong.