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Twelve Soil Orders in Agricultural Science Directory

This system for classifying soils is one of the most widely used soil classification systems in the world. Collection of information and images to illustrate the distribution, properties, ecological significance, and use of these 12 soil orders. In 1975, Soil Taxonomy was published by the United States Department of Agricultures Soil Survey Staff. This system for classifying soils has undergone numerous changes since that time, and the 2nd edition was published in 1999. Soil Taxonomy remains one of the most widely used soil classification systems in the world. At the highest level, Soil Taxonomy places soils in one of 12 categories known as orders. We have put together a collection of information and images to illustrate the distribution, properties, ecological significance, and use of these 12 soil orders.

Address: University of Idaho, Moscow, ID 83844-2339
Website: http://soils.ag.uidaho.edu/soilorders/