Term:
Dryland
Definition:
Tropical and temperate areas with an aridity index (annual rainfall/annual potential evaporation) of less than 0.65.
Domain:
Agriculture
Source:
UNEP. 2005. Chapter 22. Drylands Systems. In R., Hassan, R., Scholes & N. Ash, eds. Ecosystems and Human Wellbeing: Current State and Trends, Volume 1. pp. 623-662. Millennium Ecosystem Assessment, Island Press.