Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Okavango Delta' has mentioned 'Water' in the following places:
Occurrence Sentence Text Source
All the water reaching the delta is ultimately evaporated and transpired and does not flow into any sea or ocean.
Each year, about 11 cubic kilometres (2.6xc2xa0cuxc2xa0mi) of water spread over the 6,000xe2x80x9315,000xc2xa0km2 (2,300xe2x80x935,800xc2xa0sqxc2xa0mi) area.
Contents 1 Geography 1.1 Floods 1.2 Water flow 1.3 Lagoons 1.4 Salt islands 1.5 Chief's Island 2 Climate 3 Fauna of the delta 3.1 Fish 4 Flora of the delta 5 People 6 Molapos (water streams) 7 Possible threats 8 See also 9 References 10 Further reading 11 External links
The high temperature of the delta causes rapid transpiration and evaporation, resulting in 3 cycles of rising and falling water level[9] that was not fully understood until the early 20th century.
The delta is very flat, with less than 2xc2xa0m (6xc2xa0ft 7xc2xa0in) variation in height across its 15,000xc2xa0km2 (5,800xc2xa0sqxc2xa0mi),[10] while the water drops about 60 m from Mohembo to Maun.
Water flow[edit]
When the water levels gradually recede, water remains in major canals and river beds, in waterholes and in a number of larger lagoons, which then attract increasing numbers of animals.
[23] Prime bird-watching areas are those with a mix of habitats such as the Panhandle, the seasonal Delta and the parts of the Moremi Game Reserve that are close to the water.
[26] The lechwe a bit larger than an impala, with elongated hooves and a water-repellent substance on its legs that enable rapid movement through knee-deep water.
Lechwe graze on aquatic plants and, like the waterbuck, take to water when threatened by predators.
These species are located according to their water preference, for instance Philenoptera violacea requires little water, is found at the highest elevations in the perennial swamps, and is common on drier seasonal swamp islands, Trees restricted to islands within the perennial swamp are a mixture of the palm Hyphaene petersiana and Acasia.
Molapos (water streams)[edit]
The bunds are provided with sluice gates so the stored water can be released and flood recession cropping can start.
[37] Environmentalists are concerned that the project will have a negative ecological impact and that some of the main bodies of water could be threatened.
[52] Other threats include local human encroachment and regional extraction of water in both Angola and Namibia.
[55] The effects of global warming are likely to result in reductions in the extent of floodplains in the Okavango Delta, which will have significant impacts on water availability as well as livestock rearing and agricultural activities in the region.
The Deltaxe2x80x99s dynamic geomorphological history has a major effect on the hydrology, determining water flow direction, inundation and dehydration of large areas within the Delta system.
Thirty-three species of water birds occur in the Okavango Delta in numbers that exceed 0.5% of their global or regional population.
Most importantly, the source of the Okavango Deltaxe2x80x99s waters in Angola and Namibia remain unaffected by any upstream dams or significant water abstraction and the three riparian states have established a protocol under the Permanent Okavango River Basin Water Commission (OKACOM) for the sustainable management of the entire river system.
It is imperative that upstream environmental water flows remain unimpeded and that over abstraction of water, the building of dams and the development of agricultural irrigation systems do not impact on the sensitive hydrology of the property.
The State Party should also work with State Parties upstream from the Delta to monitor any potential impacts, including from potential diamond mining in Angola, which could impact water flow or water quality in the Delta.