Hafir

A hafir is an artificially constructed water catchment basin with a circular earthen wall and diameters of between 70-250 m and heights of up to 7 m.[1] Adapted to semi-desert conditions,[2] the hafirs catch the water during the rainy season to have it available for several months during the dry season to supply drinking water, irrigate fields and water cattle.[3] It is used in central Sudan from time immemorial.

History

Hafirs were an important feature of the Meroitic civilization in the Butana and were often built in the immediate vicinity of temples, for example the Great Hafir near the Lion Temple in Musawwarat es-Sufra. 800 ancient and modern hafirs have been registered in the Butana.[3] Some scholars assume that the hafirs near temples were a Meroitic policy to control pastoralists’ movements and collect taxes.[4]

This irrigation technique was improved at the time of the Turkish-Egyptian rule in present Sudan. At the end of the 1940s, the British colonial government used an irrigation program to allow the mechanised cultivation of sorghum.

Present-day

Hafirs are still constructed and used today in central Sudan. Today's hafirs hold between 10,000 m3 and 60,000 m3 of water mostly administered by village communities and are used for irrigation. Only the hafirs excavated by the government are also accessible to the herds of nomads.[5]

Notes

  1. M.Hinkel; The Water Reservoirs in Ancient Sudan; in: Bonnet (ed.) 1994; Études nubiennes vol. II, Genève pp. 171-175.
  2. Hafirs in Sudan.
  3. Fritz Hintze, Kush XI; pp.222-224.
  4. Intisar Soghayroun, Elzein Soghayroun (2010); Trade and Wadis System(s) in Muslim Sudan; p.44; ISBN 978-9970-25-005-9.
  5. Common Rainwater Harvesting Techniques in Sudan.
gollark: I have no idea about *that*, but it's not valid to say "12 protests in your area → guaranteed (i.e. 100% or nearly) chance of one or more being violent".
gollark: > 10 percent of BLM protests are violent. that means if you have 12 protests in your area you are guaranteed to be hurt, or have property damageRandom nitpicking, but that is *not* how probabilities work.
gollark: Although, I'm not sure how a "no capital system" is meant to work, given that you need capital to produce basically anything.
gollark: Lots of the things fitting into each category are completely different from each other in other ways.
gollark: But that's not necessarily a *good* dichotomy.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.