drylands
| Definition | Source | References |
|---|---|---|
Arid, semi-arid and dry sub-humid areas. The term excludes hyper-arid areas, also known as deserts. Drylands are characterized by water scarcity and cover approximately 40% of the world's terrestrial surface. |
Europe and Central Asia assessment | |
Drylands comprise arid, semi-arid and dry sub-humid areas. The term excludes hyper-arid areas, also known as deserts. Drylands are characterised by water scarcity and cover approximately 40 % of the world's terrestrial surface. |
UNCCD, http://www.unccd.int/Lists/SiteDocumentLibrary/Publications/Desertification-EN.pdf | |
Drylands comprise arid, semi-arid and dry sub-humid areas. The term excludes hyper-arid areas, also known as deserts. Drylands are characterised by water scarcity and cover approximately 40 per cent of the world's terrain. |
Asia-Pacific assessment | |
Drylands comprise arid, semi-arid and dry sub-humid areas. The term excludes hyper-arid areas, also known as deserts. Drylands are characterised by water scarcity and cover approximately 40% of the world's terrestrial surface. |
Americas assessment | |
Tropical and temperate areas with an aridity index (annual rainfall/annual potential evaporation) of less than 0.65. |
Land degradation and restoration assessment |