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From over to optimal irrigation in paddy production: What determines over-irrigation in Bangladesh?

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dc.contributor.authorIslam, Md. Sariful
dc.contributor.authorTumpa, Shamshunnahar
dc.contributor.authorAfrin, Sonia
dc.contributor.authorAhsan, Md. Nasif
dc.contributor.authorHaider, Mohammed Ziaul
dc.contributor.authorDas, Debasish Kumar
dc.contributor.departmentBRAC Institute of Governance and Development
dc.date.accessioned2022-02-16T04:39:34Z
dc.date.available2022-02-16T04:39:34Z
dc.date.copyright2021
dc.date.issued2021-04-22
dc.descriptionThis article was published in Sustainable Water Resources Management [©2012 Published the Author(s), under exclusive license to Springer Nature Switzerland AG] and the definite version is available at: https://doi.org/10.1007/s40899-021-00512-0 The Article's website is at: https://link.springer.com/article/10.1007/s40899-021-00512-0#citeasen_US
dc.description.abstractThis paper examines the level of optimal irrigation and the determinants of over-irrigation in paddy production since about three-fourth of freshwater withdrawal is used to irrigate paddy plants in Bangladesh. Cobb–Douglas production function reveals that optimal irrigation is 75 × 102 m3 per acre per season. Results show nearly, 39% of water is over-irrigated. It escalates farmer’s irrigation cost by USD 56 per acre and induces additional depletion 60 × 102 million m3 freshwater with substantial welfare loss USD 70–73 million in south-western Bangladesh. Further analyses reveal that farm characteristics, salinity, and irrigational modes determine over-irrigation in the study area. This study suggests that the alternate wetting and drying (AWD) technique helps farmers to reduce irrigation substantially and to reach the optimal level. Welfare effects of the AWD technique are 89–93% reduction in over-irrigation 68–71% reduction in ancillary cost.en_US
dc.description.versionPublished
dc.identifier.doihttps://doi.org/10.1007/s40899-021-00512-0
dc.identifier.urihttp://hdl.handle.net/10361/16259
dc.language.isoen_USen_US
dc.publisherSpringer Linken_US
dc.relation.urihttps://link.springer.com/article/10.1007/s40899-021-00512-0#citeas
dc.relation.uriSustainable Water Resources Management
dc.subjectOptimal irrigationen_US
dc.subjectOver-irrigationen_US
dc.subjectPaddy productionen_US
dc.subjectWater productivityen_US
dc.subjectWelfare lossen_US
dc.titleFrom over to optimal irrigation in paddy production: What determines over-irrigation in Bangladesh?en_US
dc.typeJournal Articleen_US

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