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Kalahari Desert


Nature creation - Earth Desert ::-- 1.Antarctic - Desert|| 2.Sahara - Desert|| 3.Arctic - Desert|| 4.Arabian - Desert|| 5.Gobi - Desert|| 6.Kalahari - Desert|| 7.Patagonian - Desert|| 8.Victoria - Desert|| 9.Syrian - Desert|| 10.Great Basin - Desert|| Desert List||


Kalahari - Desert

The Kalahari Desert (Dorsland in Afrikaans) is a large arid to semi-arid sandy area in Southern Africa extending 900,000 square kilometres (350,000 sq mi), covering much of Botswana and parts of Namibia and South Africa, as semi-desert, with huge tracts of excellent grazing after good rains. The Kalahari supports more animals and plants than a true desert. There are small amounts of rainfall and the summer temperature is very high. It usually receives 3–7.5 inches of rain per year. The surrounding Kalahari Basin covers over 2,500,000 square kilometres extending farther into Botswana, Namibia and South Africa, and encroaching into parts of Angola, Zambia and Zimbabwe. The only permanent river, the Okavango, flows into a delta in the northwest, forming marshes that are rich in wildlife. Ancient dry riverbeds—called omuramba—traverse the Central Northern reaches of the Kalahari and provide standing pools of water during the rainy season. Previously havens for wild animals from elephant to giraffe, and for predators such as lion and cheetah, the riverbeds are now mostly grazing spots, though leopard or cheetah can still be found.



Climate
Derived from the Tswana word Kgala, meaning "the great thirst", or Khalagari, Kgalagadi or Kalagare, meaning "a waterless place", the Kalahari has vast areas covered by red sand without any permanent surface water. Drainage is by dry valleys, seasonally inundated pans, and the large salt pans of the Makgadikgadi Pan in Botswana and Etosha Pan in Namibia. However, the Kalahari is not a true desert. Parts of the Kalahari receive over 250 millimetres of erratic rainfall annually and are quite well vegetated; it is only truly arid in the southwest with under 175 millimetres of rain annually, making the Kalahari a fossil desert. Summer temperatures in the Kalahari range from 20 to 45°C .
The Kalahari Desert was once a much wetter place. The ancient Lake Makgadikgadi dominated the area, covering the Makgadikgadi Pan and other areas, until its final drainage some 10,000 years ago. It may have once covered as much as 275,000 square kilometres.



Game reserves

The Kalahari has a number of game reserves—the Central Kalahari Game Reserve (the world's second largest protected area), Khutse Game Reserve and the Kgalagadi Transfrontier Park. Animals that live in the region include brown hyenas, lions, meerkats, giraffes, warthogs, jackals, several species of antelope (including the eland, gemsbok, springbok, hartebeest, steenbok, kudu, and duiker), and many species of birds and reptiles. Vegetation in the Kalahari consists mainly of grasses and acacias, but there are over 400 identified plant species present (including the wild watermelon, or Tsamma melon). Camel rides flourish when it rains.


kalahari desert

Population

The Bushmen have lived in the Kalahari for 20,000 years as hunter-gatherers. They hunt wild game with bows and arrows and gather edible plants, such as berries, melons and nuts, as well as insects. Bushmen rarely drink water; they get most of their water requirements from plant roots and desert melons found on or under the desert floor. They often store water in the blown-out shells of ostrich eggs. The San languages are notable for a number of distinctive features, including click consonants. These Bushmen live in huts built from local materials—the frame is made of branches, and the roof is thatched with long grass. The Bantu-speaking Tswana, Kgalagadi, and Herero and a small number of European settlers also live in the Kalahari.

 

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