Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia
Satellite-based irrigation performance is a valuable tool for improving yields in irrigated areas across the world and requires adequate land for long-term development. This study aimed to increase irrigation performance and yield gap variation of rainfed crops using the database of FAO’s Water Prod...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2023-09-01
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| Series: | Journal of Water and Land Development |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/128405/PDF/2023-03-JWLD-07.pdf |
| _version_ | 1797659282838126592 |
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| author | Fiseha Befikadu Deneke Amba Shetty Fekadu Fufa |
| author_facet | Fiseha Befikadu Deneke Amba Shetty Fekadu Fufa |
| author_sort | Fiseha Befikadu Deneke |
| collection | DOAJ |
| description | Satellite-based irrigation performance is a valuable tool for improving yields in irrigated areas across the world and requires adequate land for long-term development. This study aimed to increase irrigation performance and yield gap variation of rainfed crops using the database of FAO’s Water Productivity Open Access Portal (WaPOR) and the Global Yield Gap Atlas. The evapotranspiration ( ET) performance of irrigation is expressed in equity ( CV of ET), reliability, adequacy ( CV of ET), and water productivity (kg∙m<sup>-3</sup></p>). The rainfed crops are interpreted in terms of metric tonnes/ha. Specifically, 20,325 km<sup>2</sup></p> of suitable pastoral land across eight sub-classes was converted to rainfed rice, sugarcane, maize, and vegetable crops. Results showed that the R<sup>2</sup></p> value was 0.97 at Baro Itang and –0.99 at Sor Metu, with the Baro Gambella sub-catchment having the largest yield gap of 4.435.2, 8.870.4, and 10.080∙106 kg when the yield increased by 1/3, 2/3, and 3/4. On the other hand, Gumero Gore had the smallest yield gap of 10,690, 29,700, and 33,750 kg, respectively. The management regime was 2.87, 0.87, and 0.35 kg∙m<sup>-3</sup></p> for growers in the estate, farmer association, and individual, respectively. The study concludes that no single irrigation technique can be considered the best, and a thorough analysis of spatiotemporal variation of the irrigation performance indicators and the yield gap in the water-scarce lower Baro watershed is required. |
| first_indexed | 2024-03-11T18:11:41Z |
| format | Article |
| id | doaj.art-f411c34b2473403390936dc0b63e2228 |
| institution | Directory Open Access Journal |
| issn | 2083-4535 |
| language | English |
| last_indexed | 2024-03-11T18:11:41Z |
| publishDate | 2023-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Journal of Water and Land Development |
| spelling | doaj.art-f411c34b2473403390936dc0b63e22282023-10-16T12:12:37ZengPolish Academy of SciencesJournal of Water and Land Development2083-45352023-09-01No 585361https://doi.org/10.24425/jwld.2023.146597Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, EthiopiaFiseha Befikadu Deneke0https://orcid.org/0000-0001-9165-3186Amba Shetty1https://orcid.org/0000-0002-3633-5254Fekadu Fufa2https://orcid.org/0000-0001-8974-0328National Institute of Technology Karnataka, Department of Water Resources and Ocean Engineering, 575025, Surathkal, IndiaNational Institute of Technology Karnataka, Surathkal, IndiaJimma Institute of Technology, Faculty of Civil and Environmental Engineering, Jimma University, Jimma, EthiopiaSatellite-based irrigation performance is a valuable tool for improving yields in irrigated areas across the world and requires adequate land for long-term development. This study aimed to increase irrigation performance and yield gap variation of rainfed crops using the database of FAO’s Water Productivity Open Access Portal (WaPOR) and the Global Yield Gap Atlas. The evapotranspiration ( ET) performance of irrigation is expressed in equity ( CV of ET), reliability, adequacy ( CV of ET), and water productivity (kg∙m<sup>-3</sup></p>). The rainfed crops are interpreted in terms of metric tonnes/ha. Specifically, 20,325 km<sup>2</sup></p> of suitable pastoral land across eight sub-classes was converted to rainfed rice, sugarcane, maize, and vegetable crops. Results showed that the R<sup>2</sup></p> value was 0.97 at Baro Itang and –0.99 at Sor Metu, with the Baro Gambella sub-catchment having the largest yield gap of 4.435.2, 8.870.4, and 10.080∙106 kg when the yield increased by 1/3, 2/3, and 3/4. On the other hand, Gumero Gore had the smallest yield gap of 10,690, 29,700, and 33,750 kg, respectively. The management regime was 2.87, 0.87, and 0.35 kg∙m<sup>-3</sup></p> for growers in the estate, farmer association, and individual, respectively. The study concludes that no single irrigation technique can be considered the best, and a thorough analysis of spatiotemporal variation of the irrigation performance indicators and the yield gap in the water-scarce lower Baro watershed is required.https://journals.pan.pl/Content/128405/PDF/2023-03-JWLD-07.pdfcrop water productivityevapotranspirationirrigation performancelower baroyield gap |
| spellingShingle | Fiseha Befikadu Deneke Amba Shetty Fekadu Fufa Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia Journal of Water and Land Development crop water productivity evapotranspiration irrigation performance lower baro yield gap |
| title | Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia |
| title_full | Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia |
| title_fullStr | Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia |
| title_full_unstemmed | Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia |
| title_short | Satellite ET-based irrigation performance: Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia |
| title_sort | satellite et based irrigation performance strategies to increase rainfed crops production in the lower baro watershed ethiopia |
| topic | crop water productivity evapotranspiration irrigation performance lower baro yield gap |
| url | https://journals.pan.pl/Content/128405/PDF/2023-03-JWLD-07.pdf |
| work_keys_str_mv | AT fisehabefikadudeneke satelliteetbasedirrigationperformancestrategiestoincreaserainfedcropsproductioninthelowerbarowatershedethiopia AT ambashetty satelliteetbasedirrigationperformancestrategiestoincreaserainfedcropsproductioninthelowerbarowatershedethiopia AT fekadufufa satelliteetbasedirrigationperformancestrategiestoincreaserainfedcropsproductioninthelowerbarowatershedethiopia |