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The climate is temperate and ranges from semi-arid to semi-humid. The habitat type differs from tropical grasslands in the annual temperature regime and the types of species found here. [1] The habitat type is known as prairie in North America, pampas in South America, veld in Southern Africa and steppe in Asia.
Former grasslands are now among the most productive agricultural lands on Earth. [28] The tallgrass prairie has been converted into one of the most intensive crop producing areas in North America. [29] Less than one tenth of one percent (<0.09%) of the original landcover of the tallgrass prairie biome remains. [30]
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Woody plants, shrubs or trees may occur on some grasslands—forming savannas, scrubby grassland or semi-wooded grassland, such as the African savannas or the Iberian deheza. [ 17 ] As flowering plants and trees, grasses grow in great concentrations in climates where annual rainfall ranges between 500 and 900 mm (20 and 35 in). [ 18 ]
The tallgrass prairie ecosystem covered some 170 million acres (690,000 km 2) of North America. Besides agriculture, much of the shortgrass prairie became grazing land for domestic livestock. Short grasslands occur in semi-arid climates while tall grasslands are in areas of higher rainfall.
The northern short grasslands (WWF terminology) shown here on a map of North America in green, is a type of true prairie (grassland) that occurs in the southern parts of the Prairie Provinces. Main article: Prairies Ecozone
The Eastern North America bioregion includes the temperate broadleaf and mixed forests of the Eastern United States and southeastern Canada, the Great Plains temperate grasslands of the central United States and south-central Canada, the temperate coniferous forests of the southeastern United States, including central Florida.
Map of national grasslands in the United States, depicted in yellow Entrance sign of a United States National Grassland area in South Dakota. A national grassland is an area of protected and managed federal lands in the United States authorized by Title III of the Bankhead–Jones Farm Tenant Act of 1937 and managed by the United States Forest Service.