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Green, blue and economic water productivity: a water footprint perspective from the Upper Awash Basin, Central Ethiopia

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dc.contributor.author Hirpa, Birtukan Abebe
dc.contributor.author Adane, Girma Berhe
dc.contributor.author Asrat, Asfawossen
dc.contributor.author Nedaw, Dessie
dc.date.accessioned 2024-06-14T06:38:23Z
dc.date.available 2024-06-14T06:38:23Z
dc.date.issued 2023-02
dc.identifier.citation Hirpa, B. A., et al. (2023). Green, blue and economic water productivity: a water footprint perspective from the Upper Awash Basin, Central Ethiopia. Journal of Water and Climate Change, 14(2), 559-575. https://doi.org/10.2166/wcc.2023.400 en_US
dc.identifier.issn 2040-2244
dc.identifier.uri https://repository.biust.ac.bw/handle/123456789/578
dc.description.abstract The rise in global freshwater consumption, inefficient water use and population growth are the main drivers of water scarcity and food insecurity. This study analyzed the green, blue and economic water productivity (GWP, BWP and EWP, respectively) of the rainfed (teff, maize and sorghum) and irrigated (sugarcane) crops along with green water scarcity (GWS) in the Upper Awash Basin using water footprints (WFs) approaches. Teff has the lowest average GWP (∼0.3 kg/m3) and the highest average WF (4205 m3/ton) between 2000 and 2010 with an average EWP of ∼0.3 USD/m3 which is higher than those of other rainfed cereal crops (maize and sorghum). The highest GWS of maize was recorded in Metehara (269 mm/growing period) and the lowest in Debrezeit (70 mm/growing period) with an intermediate value of 90 and 117 mm in Wonji and Melkassa, respectively. All the rainfed crops have lower EWP (less than 0.3 USD/m3) compared with the irrigated sugarcane in the basin. This study demonstrates that increasing the value per unit of green/blue water through increasing yield per unit of supply and switching from high to low WFs crops has significant implications for addressing the water scarcity problem by setting a WP benchmark in the basin. en_US
dc.language.iso en en_US
dc.publisher IWA Publishing en_US
dc.subject Awash Basin en_US
dc.subject Freshwater consumption en_US
dc.subject Green water scarcity en_US
dc.subject Green-blue-economic water productivity en_US
dc.subject Water footprint en_US
dc.title Green, blue and economic water productivity: a water footprint perspective from the Upper Awash Basin, Central Ethiopia en_US
dc.description.level phd en_US
dc.description.accessibility unrestricted en_US
dc.description.department mge en_US


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