Agriculture in Australia
Although Australia is mostly arid, the nation is a major agricultural producer and exporter, with over 325,300 people employed in agriculture, forestry and fishing as of February 2015. Agriculture and its closely related sectors earn $155 billion a year for a 12% share of GDP. Farmers and grazers own 135,997 farms, covering 61% of Australia's landmass. Across the country, there is a mix of irrigation and dry-land farming. The success of Australia in becoming a major agricultural power despite the odds is facilitated by its policies of long-term visions and promotion of agricultural reforms that greatly increased the country's agricultural industry.
There are three main zones: the high rainfall zone of Tasmania and a narrow coastal zone (used principally for dairying and beef production); wheat, sheep zone (cropping (principally winter crops), and the grazing of sheep (for wool, lamb and mutton) plus beef cattle) and the pastoral zone (characterised by low rainfall, less fertile soils, and large scale pastoral activities involving the grazing of beef cattle and sheep for wool and mutton). An indicator of the viability of agriculture in the state of South Australia is whether the land is within Goyder's Line.