Development opportunities versus sustainability challenges.

Book Title: NA
Year Published: 2004
Month Published: NA
Author: Yazew, E. ; Depeweg, H. ; Halle, M.
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Abstract:

In response to the impacts of water shortage on traditional agriculture in Tigray Province of northern Ethiopia, the regional government has recently been encouraging earthen dam irrigation developments. The principal objectives are to change the agrarian system to widespread irrigated agriculture and to gradually attain self-sufficiency in food production. So far about 44 earthen dams with related irrigation facilities have been constructed. A study has been carried out in two of these schemes (Gumsalasa and Korir) to improve land and water development and management through the development of an integrated approach and modelling tool. The results show that the development of earthen dam irrigation schemes is favourable. The study reviewed water, land and labour resources of the region, and the commitment of the Government and the farming community. The region has an estimated irrigation potential of 325,000 ha, of which only about 15,000 ha is utilized so far traditionally. Besides, about 9 billion m3 of water is estimated to leave the region as runoff annually. The topography of the region is convenient for the construction of dams to store part of the runoff for irrigation use. However, field studies indicate that environmental challenges may constrain the development of the irrigation schemes, such as water management practices, waterlogging and salinity problems, and evaporation from open reservoirs.

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URL: https://ezproxy2.library.colostate.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20053198883&site=ehost-live
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DOI: NA
Keywords:

environmental factors, evaporation, field tests, foodproduction, hydraulic structures, irrigated farming, irrigation systems,irrigation water, labour, land development, mathematical models, naturalresources, regional government, reservoirs, runoff, salinity, socialparticipation, tools, topography, traditional farming, waterconservation, water management, water policy, waterlogging, Ethiopia,East Africa, Africa South of Sahara, Africa, Least Developed Countries,Developing Countries, ACP Countries, earth dams, water shortage, SoilWater Management (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management], Agricultural and Forestry Equipment(General) (NN400), Policy and Planning (EE120), Natural ResourceEconomics (EE115) (New March 2000), Water Resources (PP200), Labour andEmployment (EE900)

Source: EBSCO
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