How much of Australia is covered by chenopod scrubland?

In Australia, chenopod scrublands cover approximately 6 percent of the continent. These scrublands are primarily located in regions south of the Tropic of Capricorn that receive an average annual rainfall of 150 to 250 millimetres.1

The vegetation is named for its dominant shrubs, which belong to the Chenopodiaceae family, also known as saltbushes. While these areas are ecologically significant, they have been markedly altered over the past 150 years due to intense sheep grazing, with 90 percent of these rangelands showing some level of degradation.123