Mollisols

As Molli Sole is called according to the USDA soil classification slightly acidic soils of temperate latitudes, the grasses ( Poaceae ) are covered. You will find yourself in the Argentine pampas, the prairies of the Midwest and the steppes of a broad band, which ranges from South Eastern Europe to Central Asia, besides also in China.

Molli Sole usually show a well-developed soil profile. Is of up to one meter deep, dark A horizon, which is colored black by the high humus content and constantly renewed by about dead plant roots on the surface. Underneath this is the especially in arid regions enriched with calcium carbonate B horizon.

Molli sols contain numerous minerals such as magnesium, calcium, potassium and sodium in a form available to plants so that Molli sols are agriculturally very good usable floors. In particular, cereals such as wheat thrives on Molli brines particularly well.

In addition, Molli sols are also an important habitat for many animals, such as earthworms, ants, termites or moles or prairie dogs.

Some Molli brines are formed from the deposition of loess; the vegetation removed, they are particularly susceptible to erosion, to observe, such as in the region now known as the Dust Bowl of the Midwest of the United States or in North China.

Worldwide, about 9 million square kilometers, or 7 percent of the ice-free land area is covered with Molli sols.

Classification

We distinguish seven suborders:

• Alboll
• Aquoll
• Rendoll
• Cryoll
• Xeroll
• Ustoll
• Udoll