Table 1 Geographic extent of drylands by subtype and continent
From: Global evaluation of current and future threats to drylands and their vertebrate biodiversity
Subtype area (km2) | Total area (km2) | Continent (%) | Drylands (%) | ||||
|---|---|---|---|---|---|---|---|
Hyperarid | Arid | Semiarid | Dry subhumid | ||||
Africa | 6,729,849 | 4,994,021 | 5,090,644 | 2,788,943 | 19,603,457 | 66% | 32% |
Asia | 2,766,902 | 6,341,385 | 6,999,267 | 3,539,180 | 19,646,733 | 44% | 32% |
Australia | 0 | 3,013,490 | 3,085,886 | 595,663 | 6,695,039 | 87% | 11% |
Europe | 0 | 32,477 | 1,002,994 | 1,863,490 | 2,898,961 | 29% | 5% |
North America | 26,559 | 842,281 | 3,914,740 | 2,143,927 | 6,927,507 | 29% | 11% |
South America | 250,190 | 434,845 | 2,531,392 | 2,100,449 | 5,316,877 | 30% | 9% |
Total | 9,773,500 | 15,658,499 | 22,624,924 | 13,031,652 | 61,088,574 | ||
