Dega (Abyssinia)

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Dega is one of the four agroclimatic altitudes in Ethiopia , which lies within the tropical climate zone .

Monthly temperature fluctuations are significantly less than 5 ° C than daily fluctuations, which can be over 20 ° C. Because of the great differences in altitude between the Danakil lowlands on the Red Sea and the central highlands of Abyssinia , precipitation and temperatures are primarily dependent on the altitude. Therefore, the division of Ethiopia into altitude levels is of particular importance. However, the delimiting height information is not uniform, and they are numbered differently according to regional climatic conditions. Dega lies within the following rough division:

  • Kola is a desert-like lowland and dry savannah up to 1500 meters with less than 700 millimeters of annual precipitation.
  • Woina Dega ("wine country") is the warm temperate main cultivated land of Ethiopia from 1500 (1800) to 2300 (2600) meters with the capital Addis Ababa at around 2400 meters.
  • Above that, up to the tree line at 3900 meters, is the cool zone of the Dega with precipitation of 900 to 1200 millimeters per year and average temperatures between 10 and 15 ° C. Non -tropical crops such as teff , wheat , oats and up to 3000 meters of barley are grown in the grassland with remains of afromontane coniferous forests , which is used as pasture area .

This zone is sometimes subdivided. The cool, temperate Lower Dega from 2300 (2600) to 3000 meters with 12 to 15 ° C and 900 to 1000 millimeters of precipitation is a mountain forest zone with arable farming and cattle breeding.

The Upper Dega , also known as the lower area of ​​the Werch , from 3000 to 3300 (3400) meters and temperatures from 10 to 12 ° C, is a cold, humid Ericaceae zone with hardly any arable farming. The precipitation here is 1000 to 1200 millimeters.

  • The alpine zone Tschoka , (also Werch , Kur ) lies above 3900 and up to 4620 meters .

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  1. ↑ Dissertation FU-Berlin, 2005 Height information according to Table 12, in brackets according to Table 15
  2. ^ Elevation breakdown of the vegetation of the Ethiopian highlands. ( Memento from March 3, 2010 on WebCite ) Table