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Water 2018, 10(4), 495; https://doi.org/10.3390/w10040495

Assessment of Suitable Areas for Home Gardens for Irrigation Potential, Water Availability, and Water-Lifting Technologies

1
Department of Energy and Environmental System, North Carolina A&T State University, Greensboro, NC 27411, USA
2
Department of Civil Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA
3
Sustainable Intensification Innovation Lab (SIIL), Kansas State University, Manhattan, KS 66506, USA
4
Department of Ecosystem Sciences and Management and Biological and Agricultural Engineering, Texas A&M University, College Station, TX 77843, USA
5
Texas A&M AgriLife Research Blackland Research & Extension Center, Temple, TX 76502, USA
*
Author to whom correspondence should be addressed.
Received: 21 February 2018 / Revised: 6 April 2018 / Accepted: 13 April 2018 / Published: 17 April 2018
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Abstract

The study was conducted in Lake Tana Basin of Ethiopia to assess potentially irrigable areas for home gardens, water availability, and feasibility of water-lifting technologies. A GIS-based Multi-Criteria Evaluation (MCE) technique was applied to access the potential of surface and groundwater sources for irrigation. The factors affecting irrigation practice were identified and feasibility of water-lifting technologies was evaluated. Pairwise method and expert’s opinion were used to assign weights for each factor. The result showed that about 345,000 ha and 135,000 ha of land were found suitable for irrigation from the surface and groundwater sources, respectively. The rivers could address about 1–1.2% of the irrigable land during dry season without water storage structure whereas groundwater could address about 2.2–2.4% of the irrigable land, both using conventional irrigation techniques. If the seven major dams within the basin were considered, surface water potential would be increased and satisfy about 21% of the irrigable land. If rainwater harvesting techniques were used, about 76% of the basin would be suitable for irrigation. The potential of surface and groundwater was evaluated with respect to water requirements of dominant crops in the region. On the other hand, rope pump and deep well piston hand pump were found with relatively the most (26%) and the least (9%) applicable low-cost water-lifting technologies in the basin. View Full-Text
Keywords: irrigation potential; water availability; water-lifting technology; home garden; Lake Tana basin; MCE technique irrigation potential; water availability; water-lifting technology; home garden; Lake Tana basin; MCE technique
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Assefa, T.; Jha, M.; Reyes, M.; Srinivasan, R.; Worqlul, A.W. Assessment of Suitable Areas for Home Gardens for Irrigation Potential, Water Availability, and Water-Lifting Technologies. Water 2018, 10, 495.

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