steppe

steppe (stĕp) [key], temperate grassland of Eurasia, consisting of level, generally treeless plains. It extends over the lower regions of the Danube and in a broad belt over S and SE European and Central Asian Russia, stretching E to the Altai and S to the Transbaykal and Manchurian plains. The term is sometimes applied to the corresponding temperate grasslands of Hungary (Puszta), the prairies of the United States, the pampas of South America, and the highveld (see veld) of South Africa; it is sometimes also applied to the semiarid regions on the fringe of the hot deserts. The steppe consists of three vegetation zones with significant differences in climate—the wooded, or forest, steppe; the tillable steppe, or prairie; and the nontillable steppe. The wooded steppe has deciduous trees and the heaviest annual rainfall, over 16 in. (41 cm). The tillable steppe has black earth and an annual rainfall of between 10 and 15 in. (25–38 cm). The nontillable steppe is a semidesert, found especially around the Caspian Sea, with an annual rainfall of less than 10 in. (25 cm). There is some grazing, and its soils are relatively fertile under irrigation. Although the tillable steppe was originally grassland used almost exclusively for grazing, it is now almost entirely under cultivation. Some of the world's most productive agricultural areas, such as Ukraine and the U.S. wheat belt, are situated on the tillable steppe.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on steppe from Fact Monster:

  • Baraba Steppe - Baraba Steppe Baraba Steppe , agricultural district, SW Siberian Russia, between the Ob and the ...
  • Major Biomes of the World - Major Biomes of the World Have you visited any biomes lately? A biome is a large ecosystem where ...
  • Barabinsk - Barabinsk: Barabinsk: see Baraba Steppe.
  • Chany - Chany Chany , saltwater lake, 1,280 sq mi (3,315 sq km), S Siberian Russia, in the Baraba Steppe, ...
  • plain - plain plain, large area of level or nearly level land. Elevated plains are called plateaus, or ...

See more Encyclopedia articles on: CIS and Baltic Physical Geography