Argialboll
A soil profile of a very deep, loamy Argialboll in Kansas. This soil has a thick, dark, mollic epipedon to a depth of about 90 centimeters. Within this layer is a gray albic horizon about 10 to 15 centimeters thick from which clay has been leached. An argillic horizon begins in the lower part of the mollic epipedon and extends beyond the base of the photo. (Soil Survey Staff. 2015. Illustrated guide to Soil Taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, Nebraska)
Argialbolls have an argillic (clay accumulation) subsoil horizon. Most of the soils have very dark gray to black coatings of humus and clay on the peds in the upper part of the argillic horizon. In the United States, these soils are most extensive in the loess-covered areas of the Midwestern States where the temperature regime is mesic. A very few of the soils have a frigid or thermic temperature regime. A distinct moisture deficiency in summer and a moisture surplus in winter and spring seem to be essential to the genesis of these soils. Argialbolls are associated on the landscape with all other suborders of Mollisols, except possibly Rendolls. Because they have gentle slopes, most of the Argialbolls in the United States are cultivated.
To download the latest version of Soil Taxonomy, 2nd Edition, 1999, visit:
www.nrcs.usda.gov/resources/guides-and-instructions/soil-...
For additional information about soil classification using Keys to Soil Taxonomy, 13th Edition, 2022, visit:
[www.nrcs.usda.gov/sites/default/files/2022-09/Keys-to-Soi...]
To download the latest version of Keys to Soil Taxonomy, 13th Edition, 2022, visit:
[www.nrcs.usda.gov/resources/guides-and-instructions/keys-...]
For an Illustrated Guide to Soil Taxonomy, visit:
www.nrcs.usda.gov/sites/default/files/2022-06/Illustrated...
Argialboll
A soil profile of a very deep, loamy Argialboll in Kansas. This soil has a thick, dark, mollic epipedon to a depth of about 90 centimeters. Within this layer is a gray albic horizon about 10 to 15 centimeters thick from which clay has been leached. An argillic horizon begins in the lower part of the mollic epipedon and extends beyond the base of the photo. (Soil Survey Staff. 2015. Illustrated guide to Soil Taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, Nebraska)
Argialbolls have an argillic (clay accumulation) subsoil horizon. Most of the soils have very dark gray to black coatings of humus and clay on the peds in the upper part of the argillic horizon. In the United States, these soils are most extensive in the loess-covered areas of the Midwestern States where the temperature regime is mesic. A very few of the soils have a frigid or thermic temperature regime. A distinct moisture deficiency in summer and a moisture surplus in winter and spring seem to be essential to the genesis of these soils. Argialbolls are associated on the landscape with all other suborders of Mollisols, except possibly Rendolls. Because they have gentle slopes, most of the Argialbolls in the United States are cultivated.
To download the latest version of Soil Taxonomy, 2nd Edition, 1999, visit:
www.nrcs.usda.gov/resources/guides-and-instructions/soil-...
For additional information about soil classification using Keys to Soil Taxonomy, 13th Edition, 2022, visit:
[www.nrcs.usda.gov/sites/default/files/2022-09/Keys-to-Soi...]
To download the latest version of Keys to Soil Taxonomy, 13th Edition, 2022, visit:
[www.nrcs.usda.gov/resources/guides-and-instructions/keys-...]
For an Illustrated Guide to Soil Taxonomy, visit:
www.nrcs.usda.gov/sites/default/files/2022-06/Illustrated...