Design Development of Spate Irrigation Structures in Raya Valley, Ethiopia

1
Hintsa Libsekal
Hintsa Libsekal
2
Abrham Mehari
Abrham Mehari
3
Charlotte de Fraiture
Charlotte de Fraiture
4
Tesfa-alem Gebre-egziabher
Tesfa-alem Gebre-egziabher
5
Atinkut Mezgebu
Atinkut Mezgebu
1 *Tigray Agricultural Research Institute: Alamata Agricultural Research Center, Alamata, Ethiopia

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Spate irrigation is a resource system, whereby flood water is emitted through normally dry wadi and conveyed to irrigable fields. Modernization of spate structures has been taking place in Raya valley since 1998 even though the efficiencies are not as intended. Initially the design standard was directly adopted from the conventional irrigation systems. Farmers were complaining that the implemented design standard was not appropriate with regards to their experiences. According to the professional’s perception, the reason for schemes failure could be poor management and lack of maintenance. Spate irrigation design development in Raya valley shows significant changes through time; like widening of intake, increasing of deflection angle, excluding of rain fall during design and reduction of irrigation time. The spate schemes with relatively best performance still have problems like; sedimentation around intakes, less spate flow and low performances. Therefore, understanding of the experience, wisdom and tradition of farmers is necessary during design and construction of spate irrigation.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Hintsa Libsekal. 2015. \u201cDesign Development of Spate Irrigation Structures in Raya Valley, Ethiopia\u201d. Global Journal of Science Frontier Research - D: Agriculture & Veterinary GJSFR-D Volume 15 (GJSFR Volume 15 Issue D5): .

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GJSFR Volume 15 Issue D5
Pg. 87- 91
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-D Classification: FOR Code: 079901
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v1.2

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July 11, 2015

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English

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Spate irrigation is a resource system, whereby flood water is emitted through normally dry wadi and conveyed to irrigable fields. Modernization of spate structures has been taking place in Raya valley since 1998 even though the efficiencies are not as intended. Initially the design standard was directly adopted from the conventional irrigation systems. Farmers were complaining that the implemented design standard was not appropriate with regards to their experiences. According to the professional’s perception, the reason for schemes failure could be poor management and lack of maintenance. Spate irrigation design development in Raya valley shows significant changes through time; like widening of intake, increasing of deflection angle, excluding of rain fall during design and reduction of irrigation time. The spate schemes with relatively best performance still have problems like; sedimentation around intakes, less spate flow and low performances. Therefore, understanding of the experience, wisdom and tradition of farmers is necessary during design and construction of spate irrigation.

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Design Development of Spate Irrigation Structures in Raya Valley, Ethiopia

Hintsa Libsekal
Hintsa Libsekal *Tigray Agricultural Research Institute: Alamata Agricultural Research Center, Alamata, Ethiopia
Abrham Mehari
Abrham Mehari
Charlotte de Fraiture
Charlotte de Fraiture
Tesfa-alem Gebre-egziabher
Tesfa-alem Gebre-egziabher
Atinkut Mezgebu
Atinkut Mezgebu

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