From Wikipedia, the free encyclopedia

Named deserts of Australia cover 1,371,000 square kilometres (529,000 sq mi), or 18% of the Australian mainland. However, additional areas are considered to have a desert climate based on low rainfall and high temperature. The largest of the landform types covering Australia, deserts – and their arid climatic conditions – are found primarily in the western plateau and interior lowlands of the country.

Deserts are not necessarily completely devoid of vegetation, but have large areas where vegetation is very limited in height or extent.

Australia’s climate is mostly determined by the hot, sinking air of the subtropical high pressure belt.Dry conditions are associated with an El Niño–Southern Oscillation in Australia. Vegetation in arid areas is primarily dependent upon soil type.

Extensive areas are cover by longitudinal dunes. 40% of Australia is covered by dunes. Central Australia is very dry where averages are 150 mm of rainfall each year.

Australian feral camel are presenting problems for native vegetation. This is partly because Australian desert vegetation evolved without any major herbivore present. Also un-controlled access to more sensitive areas by four-wheel drive vehicles can be an issue.


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