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SUB ARID [1 record]

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Record 1 2006-02-27

English

Subject field(s)
  • Climatology
  • Biogeography
DEF

Said of a type of climate in which there is slightly more precipitation (10-20 inches or 12-16 inches) than in an arid climate, and in which grasses are the characteristic vegetation.

CONT

Semi-arid regions often form on the margins of deserts, or in rainshadow basins. They are more hazardous than deserts because, from time to time, there is enough rainfall to support farming, which encourages people to overdevelop them and leads to catastrophe when a long period without rain follows ... The Sahel of Africa is a region of semi-arid climate with a large population where disasters due to rain failures are common. The Great Plains region of North America is a semi-arid region. The disaster that produced the "Dust Bowl" was due to a period of rain shortage.

PHR

Semiarid area.

Key term(s)
  • sub-arid
  • sub arid
  • semi arid

French

Domaine(s)
  • Climatologie
  • Biogéographie
DEF

Se dit d'un climat comportant des précipitations irrégulières dont la hauteur annuelle moyenne est faible.

OBS

Les bordures des déserts sont soumises à ce genre de climat.

PHR

Région semi-aride.

Key term(s)
  • semi aride

Spanish

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