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A grassland is an area where the vegetation is dominated by grasses . However, sedge and rush can also be found along with variable proportions of legumes, such as clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth.
Temperate grasslands, savannas, and shrublands are terrestrial biomes defined by the World Wide Fund for Nature. [1] The predominant vegetation in these biomes consists of grass and/or shrubs . The climate is temperate and ranges from semi-arid to semi-humid.
Desert (arid) grasslands are composed of sparse grassland ecoregions located in the deserts and xeric shrublands biome. Temperature extremes and low amounts of rainfall characterise these kinds of grasslands. Therefore, plants and animals are well adapted to minimize water loss. [2] Shrub-steppe is also a type of low-rainfall natural grassland.
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.
In physical geography, a steppe (/ s t ɛ p /) is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes. [1] Steppe biomes may include: the montane grasslands and shrublands biome; the tropical and subtropical grasslands, savannas, and shrublands biome; the temperate grasslands, savannas, and ...
The tropical and subtropical grasslands, savannas, and shrublands are characterized by rainfall levels between 90–150 centimetres (35–59 in) per year. [1] Rainfall can be highly seasonal, with the entire year's rainfall sometimes occurring within a couple of weeks. African savannas occur between forest or woodland regions and grassland regions.
Temperate grassland regions include the Pampas of Argentina, Brazil and Uruguay, and the steppe of Ukraine, Russia, and Kazakhstan. Lands typically referred to as "prairie" tend to be in North America. The term encompasses the lower and mid-latitude of the area referred to as the Interior Plains of Canada, the United States, and Mexico.
The central forest-grasslands transition lies to the north and northwest, and the Edwards Plateau savanna and the Tamaulipan mezquital lie to the southwest. The larger of the two islands is the Fayette Prairie, encompassing 17,000 km 2 (6,600 sq mi), and the smaller is the San Antonio Prairie, with an area of 7,000 km 2 (2,700 sq mi).