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dc.contributor.authorMANETA, M. P.pt_BR
dc.contributor.authorTORRES, M.pt_BR
dc.contributor.authorWALLENDER, W. W.pt_BR
dc.contributor.authorVOSTI, S.pt_BR
dc.contributor.authorKIRBY, M.pt_BR
dc.contributor.authorBASSOI, L. H.pt_BR
dc.contributor.authorRODRIGUES, L. N.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2010-01-27pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationAgricultural Water Management, v. 96, n. 8, p. 1191-1200, 2009.pt_BR
dc.identifier.issn0378-3774pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/631354pt_BR
dc.descriptionMost activities that support economic growth in the São Francisco Riber Basin (Brazil) need water. Allocation of the water resources to each competing use needs quantification in order to develop an integrated water management plan. Irrigation agriculture is the largest water consuming activity in the basin. It has produced large economic and social advancements in the region and has potential for further development. The local development agency in the São Francisco River has projected an increase of more than 500,000ha in irrigation developments distributed within the basin. Water requirements of the projected irrigation expansions and their effects on river flow were quantified. A semi-distributed model was constructed to simulate the water balance in 16 watersheds within the basin. The watersheds were hydrologically characterized by the average precipitation, atmospheric demand and runoff as well as their variability. Water requirements for increased irrigated agriculture were calculated using an agronomic mas balance. A Monte Carlo procedure generated the variability of irrigation requirements and resulting decreased river flows from the multidimensional probability distribution of the hydrologic variables of each watershed. Irrigation requirements were found to be more variable during the wet season because of weather variability. In contrast to what might be expected, in drier years, irrigation requirements were often larger during the wet season than in the dry season because the cropped area is largest in the wet months and variability of precipitation is greater. Increased irrigation shifted downward the distribution of river flows but not enough to affect other strategic water uses such as hydropower. Further irrigation expansion may be limited by wet season flows.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBacia do São Franciscopt_BR
dc.subjectRio São Franciscopt_BR
dc.subjectProjeto de desenvolvimento integradopt_BR
dc.subjectVariability of irrigationpt_BR
dc.titleWater demand and flows in the São Francisco River Basin (Brazil) with increased irrigation.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-04-12T11:11:11Zpt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroManejo de Águapt_BR
dc.subject.nalthesaurusIrrigationpt_BR
dc.subject.nalthesaurusWater resourcespt_BR
dc.subject.nalthesaurusWater managementpt_BR
riaa.ainfo.id631354pt_BR
riaa.ainfo.lastupdate2017-04-12pt_BR
dc.identifier.doi10.1016/j.agwat.2009.03.008pt_BR
dc.contributor.institutionM. P. MANETA, University of Californiapt_BR
dc.contributor.institutionM. TORRES, University of Californiaeng
dc.contributor.institutionW. W. WALLENDER, University of Californiaeng
dc.contributor.institutionS. VOSTI, University of Californiaeng
dc.contributor.institutionM. KIRBY, CSIROeng
dc.contributor.institutionLUIS HENRIQUE BASSOI, CPATSAeng
dc.contributor.institutionLINEU NEIVA RODRIGUES, CPAC.eng
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