temperate grasslands

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Last updated 11 years ago

Environmental Studies

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temperate grasslands


Temperate grasslands are found across the globe - the best examples are the plains and prairies of North America and the steppes of Russia and China. At the topmost level, there are two types of grasslands - temperate grasslands and tropical savannahs. Unlike savannahs, which may have a large number of trees and shrubs, temperate grasslands are dominated by grasses. These are further subdivided into tall-grass and short-grass grasslands, depending on the area's rainfall.Grasslands are usually dominated by several different types of grass, such as needlegrass and buffalo grass, and other assorted wildflowers, such as goldenrod. Frequent droughts and lightning-strike fires in this biome prevent any larger plants from thriving. The soil is often very rich, and is nourished by layers of dead grasses. Common animals include bison, deer, mice, rabbits, owls, snakes, and prairie dogs.Prairies are usually hot in the summer and cool in the winter. Steppes are far colder and drier than prairies, as there is no ocean from which to get moisture and no protection from harsh Arctic winds. In contrast, subtropical temperate grasslands tend to be of the tall-grass variety, due to abundant rainfall.

Environmental concerns!Most prairies and steppes have been turned into grazing lands due to their abundant grasses and rich soil. As a result, the biomes are harmed by overgrazing, plowing, and erosion The fragmentation of these lands reduces biodiversity.

Temperature Range: 38C - -40CAverage Percipitation: 50.8-88.9 cm (prairies), 25.4-50.8 cm (steppes)



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