Our natural environment | https://enrolldetroit.org

Australia is the sixth largest country in the world. Its ocean district is the world ‘s one-third largest, spanning three oceans and covering about 12 million square kilometres .
closely seven million square kilometres, or 91 per penny of Australia, is covered by native vegetation. Although this number may seem high, many of Australia ‘s desert landscapes are covered by native plants such as saltbush, albeit sparsely .
For tens of thousands of years, the lives and feel of cultural identity of autochthonal Australians were inextricably linked to the land, its forms, flora and fauna. nowadays, the identity of all Australians is shaped by a relationship with the natural environment .
Australia is one of the most urbanize and coast-dwelling populations in the universe. More than 80 per cent of Australians live within 100 kilometres of the coast.


Australia has some of the oldest land surface on earth and while rich in biodiversity its soils and seas are among the most nutrient poor people and unproductive in the populace. This is due chiefly to the area ‘s geological stability, which is a major feature of the australian land batch, and is characterised by, among early things, a lack of significant seismic action .
only six per cent of the australian landmass is arable. big volumes of body of water are required from both come on and groundwater supplies. australian soils are highly dependant upon vegetation blanket to generate nutrients and for constancy. Land clear, urine origin and poor people territory conservation are all causes of a descent in the quality of Australia ‘s soils .


Australia is the dry inhabited continent on earth, with the least amount of water in rivers, the lowest run-off and the smallest area of permanent wave wetlands of all the continents .
One third of the continent produces about no run-off at all and Australia ‘s rain and stream-flow are the most varying in the populace .
Human natural process continues to exert imperativeness on marine environments. befoulment is the most serious problem and the huge majority of marine pollution is caused by down based activities — soil erosion, fertilizer use, intensive animal output, sewage and other urban industrial discharges .
Australia presently has 65 Ramsar ( an external convention that provides the framework for conservation of wetlands ) listed wetlands covering 7.5 million hectares and more than 850 of national importance. Australia ‘s marine environment is home to 4000 fish species, 500 coral species in the northerly reef alone, 50 types of marine mammal and a broad range of seabirds. It is estimated that arsenic many as 80 per cent of marine species found in southern australian waters occur nowhere else


Australia is one of the most biologically diverse countries on the satellite. It is home to more than one million species of plants and animals, many of which are found nowhere else in the worldly concern, and less than half have been described scientifically .
About 85 per cent of flowering plants, 84 per penny of mammals, more than 45 per penny of birds, and 89 per penny of inshore, fresh water fish are singular to Australia .
Australia is lavishly endowed with marsupials — there are more than 140 species .
At least 18 exotic mammals have established feral populations in Australia, with cats and foxes responsible for the decay and extinction of respective native animals .
At least 2700 non-native ( introduced ) plants have established populations in Australia. Sixty-eight per penny of these introduced plants are considered a problem for natural ecosystems .

Flora and fauna

The high diversity of vegetation includes big numbers of species in ecologically significant genus such as Acacia, Eucalyptus, Melaleuca, Grevillea and Allocasuarina. Acacias tend to dominate in dry inland parts of Australia, while eucalypts dominate in wet parts.

The most common vegetation types today are those that have adapted to arid conditions, where the down has not been cleared for farming. The prevailing type of vegetation in Australia — 23 per penny — is the knoll grasslands in western Australia, South Australia and the Northern Territory. In the east eucalyptus woodlands are prevailing, and in the west there are Acacia forests, woodlands and shrublands. Tussock grasslands are found largely in Queensland .
In Australia there are more than 378 species of mammals, 828 species of birds, 300 species of lizards, 140 species of snakes and two species of crocodiles. Of the mammals, about half are marsupials. The rest are either placental mammals or monotremes .
Among Australia ‘s best-known animals are the kangaroo, koala, echidna, dingo, platypus, wallaby and wombat .

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