Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/160138
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dc.contributor.authorTEIXEIRA, A. H. de C.pt_BR
dc.contributor.authorBASTIAANSSEN, W. G. M.pt_BR
dc.contributor.authorMOURA, M. S. B. dept_BR
dc.contributor.authorSOARES, J. M.pt_BR
dc.contributor.authorAHMAD, M. D.pt_BR
dc.contributor.authorBOS, M. G.pt_BR
dc.date.accessioned2011-04-09T20:37:26Z-
dc.date.available2011-04-09T20:37:26Z-
dc.date.created2008-09-03pt_BR
dc.date.issued2008pt_BR
dc.identifier.citationAgricultural and Forest Meteorology, Amsterdam, v. 148, p. 1524-1537, 2008.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/160138pt_BR
dc.descriptionCrop water parameters, including actual evapotranspiration, transpiration, soil evaporation,crop coefficients, evaporative fractions, aerodynamic resistances, surface resistances andpercolation fluxes were estimated in a commercial mango orchard during two growingseasons in Northeast Brazil. The actual evapotranspiration (Ea) was obtained by the eddycovariance (EC) technique, while for the reference evapotranspiration (E0); the FAO Penman–Monteith equation was applied. The energy balance closure showed a gap of 12%. For waterproductivity analysis theEawas then computed with the Bowen ratio determined from theeddy covariance fluxes. The mean accumulatedEafor the two seasons was 1419 mm year1,which corresponded to a daily average rate of 3.7 mm day1. The mean values of the cropcoefficients based on evapotranspiration (Kc) and based on transpiration (Kcb) were 0.91 and0.73, respectively. The single layerKcwas fitted with a degree days function. Twenty percent ofevapotranspiration originated from direct soil evaporation. The evaporative fraction was 0.83on average. The average relative water supply was 1.1, revealing that, in general, irrigationwater supply was in good harmony with the crop water requirements. The resulting evapo-transpiration deficit was 73–95 mm per season only. The mean aerodynamic resistance (ra)was 37 s m1and the bulk surface resistance (rs) was 135 s m1. The mean unit yield was45 tonne ha1being equivalent to a crop water productivity of 3.2 kg m3when based onEawith an economic counterpart of US$ 3.27 m3. The drawback of this highly productive use ofwater resources is an unavoidable percolation flux of approximately 300 mm per growingseason that is detrimental to the downstream environment and water users.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectNordestept_BR
dc.titleEnergy and water balance measurements for water productivity analysis in irrigated mango trees, Northeast Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2019-07-29T11:11:11Zpt_BR
dc.subject.thesagroÁguapt_BR
dc.subject.thesagroColheitapt_BR
dc.subject.thesagroEnergiapt_BR
dc.subject.thesagroEvapotranspiraçãopt_BR
dc.subject.thesagroMangapt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroProdutividadept_BR
dc.subject.nalthesaurusIrrigationeng
riaa.ainfo.id160138pt_BR
riaa.ainfo.lastupdate2019-07-29 -03:00:00pt_BR
dc.contributor.institutionANTONIO HERIBERTO DE C TEIXEIRA, CPATSApt_BR
dc.contributor.institutionW.G.M. Bastiaansseneng
dc.contributor.institutionMAGNA SOELMA BESERRA DE MOURA, CPATSAeng
dc.contributor.institutionJosé Monteiro Soares, CPATSAeng
dc.contributor.institutionM.D. Ahmad, IWMI.eng
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