Organization Science, Education and Culture of the United Nations Unesco has recognized Botswana’s Okavango Delta as a World Natural Heritage in 2014.
Pasture Okavango Delta Okavango Delta is a large area with an area of 7,770 square kilometers. This is the largest delta in Botswana. Okavango Delta is not only outstanding scenic but also the habitat of thousands of species of wild fauna and rare. It is also the area with the most elephants in the world. Okavango features Kalahari Desert – hard sand, arid, but is excellent grazing lands of many wild animals after each rainy season. Besides, the gentle green marshes, meandering rivers with abundant vegetation … really create beautiful scenery for the whole region.
The most special thing is the dress here evaporate water and evaporated completely and not flow into any sea or ocean. 11km3 of water every year to spread out in one area of 6,000 to 15,000 km2 creating endless winding river with gentle green marshes Okavango Delta is thus regarded as the natural wonders of the World Africa not only the famous sights in Botswana.
However in Africa also 2 delta have similar physical characteristics Okavango Sudd that is on the Nile in South Sudan and Niger Delta in Mali. With exotic evaporation characteristics, particularly each year about 11 billion liters of water flow into the delta), then about 60% water loss through transpiration of plants; 36% evaporates into the air, while the rest escaped into the groundwater system.
Besides the periodic evaporation characteristics with a rare scene, the Okavango Delta is also noted for the large number of wild animals including numerous rare species.
According to estimates there are more than 200,000 large mammals residing in lowland areas and migrant seasonal summer rain when the problem appeared to find new pastures then returned here in the winter. There are also hundreds of species of habitual residence including many rare species such as the African elephant, African buffalo, hippos, antelope, brown hyena, spotted hyena, wildebeest, giraffe, crocodile, lion, leopard hunting, Leopard, black rhino, white rhino, plains zebra Own up to 400 species of birds are also all kinds, including the species known as : University of Africa, fish owl Pel, Grey Crowned crane, hammerhead Stork, African ostrich, white Stork Africa in the lake area in the Okavango delta region also includes 71 species African lake fish, catfish. Catfish own non estimated 1.4 million children. Some fish are also found in the Zambezi River, which suggests that the delta and river areas are the links in the past.
Mammals occupy the largest number is about 60,000 antelope with children. Antelope Okavango Delta residents in greater than other antelopes. Long nails and the waterproof quality adaptable to the changing environment in the delta. Antelope feed mainly grass, some individual antelope eating aquatic vegetation near wetlands. Because of abundant food here antelope rapidly growing in number.
Okavango Delta recognized by UNESCO under criteria (vii), (ix), (x) Criterion (vii): Due to the environmental change, climate, Kalahari desert area became beautiful and scenic landscape of Botswana rare and the whole African continent. Criterion (ix): Okavango Delta is a proof that the complexity of the environment where the animals, vegetation, climate and geology have a direct impact to the development process of each other. Criterion (x): Okavango Delta region is not only an incredibly beautiful scenery, wonderful natural that it also has a special geology. Also an interesting thing, but is also very important to contribute to UNESCO heritage here is that world is the large number of plant and animal species reside in this place. Among them there are many species are classified in the list of rare and endangered.
Source: According to world heritage