Nature4y
Global map of soil moisture regimes. Developed by USDA-NRCS, Soil Survey Division, World Soil Resources, Washington, DC.
Global map of soil moisture regimes. Developed by USDA-NRCS, Soil Survey Division, World Soil Resources, Washington, DC.
Nature4y
Examples of Mollisols (grassland soils) formed from loess.
Both soils have mean annual precipitation of 450 mm. The Ustoll (a) has an ustic soil moisture regime and the Xeroll (b) has a xeric soil moisture regime. Note the presence of calcium carbonate ...