Calcic Kastanozem RU
A representative soil profile of a Kastanozem from Russia. (Photo provided by Yakov Kuzyakov, revised.)
Kastanozems accommodate dry grassland soils, among them the soils of the short-grass steppe belt, south of the Eurasian tall-grass steppe belt with Chernozems. Kastanozems have a similar profile to that of Chernozems but the humus-rich surface horizon is thinner and not as dark as that of the Chernozems, and they show more prominent accumulation of secondary carbonates. The chestnut-brown colour of the surface soil is reflected in the name Kastanozem. Common names for many Kastanozems are (Dark) Chestnut soils (Russia), Kalktschernoseme (Germany), (Dark) Brown soils (Canada), Ustolls and Xerolls (United States of America) and Chernossolos (Brazil).
Calcic (from Latin calx, lime): having a calcic horizon starting ≤ 100 cm from the soil surface. A calcic horizon (from Latin calx, lime) is a horizon in which secondary calcium carbonate (CaCO3) has accumulated in a diffuse form (calcium carbonate occurs as impregnation of the matrix or in the form of fine calcite particles of < 1 mm, dispersed in the matrix) or as discontinuous concentrations (veins, pseudomycelia, coatings, soft and/or hard nodules). (WRB)
For more information, visit;
wwwuser.gwdg.de/~kuzyakov/soils/WRB-2006_Keys.htm
For more information about Dr. Kuzyakov, visit;
www.uni-goettingen.de/de/212970.html
For more information about soil classification using the WRB system, visit:
www.fao.org/3/i3794en/I3794en.pdf
Calcic Kastanozem RU
A representative soil profile of a Kastanozem from Russia. (Photo provided by Yakov Kuzyakov, revised.)
Kastanozems accommodate dry grassland soils, among them the soils of the short-grass steppe belt, south of the Eurasian tall-grass steppe belt with Chernozems. Kastanozems have a similar profile to that of Chernozems but the humus-rich surface horizon is thinner and not as dark as that of the Chernozems, and they show more prominent accumulation of secondary carbonates. The chestnut-brown colour of the surface soil is reflected in the name Kastanozem. Common names for many Kastanozems are (Dark) Chestnut soils (Russia), Kalktschernoseme (Germany), (Dark) Brown soils (Canada), Ustolls and Xerolls (United States of America) and Chernossolos (Brazil).
Calcic (from Latin calx, lime): having a calcic horizon starting ≤ 100 cm from the soil surface. A calcic horizon (from Latin calx, lime) is a horizon in which secondary calcium carbonate (CaCO3) has accumulated in a diffuse form (calcium carbonate occurs as impregnation of the matrix or in the form of fine calcite particles of < 1 mm, dispersed in the matrix) or as discontinuous concentrations (veins, pseudomycelia, coatings, soft and/or hard nodules). (WRB)
For more information, visit;
wwwuser.gwdg.de/~kuzyakov/soils/WRB-2006_Keys.htm
For more information about Dr. Kuzyakov, visit;
www.uni-goettingen.de/de/212970.html
For more information about soil classification using the WRB system, visit:
www.fao.org/3/i3794en/I3794en.pdf