Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/631357
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dc.contributor.authorMANETA, M. P.pt_BR
dc.contributor.authorSINGH, P. N.pt_BR
dc.contributor.authorTORRES, M.pt_BR
dc.contributor.authorWALLENDER, W. W.pt_BR
dc.contributor.authorVOSTI, S. A.pt_BR
dc.contributor.authorRODRIGUES, L. N.pt_BR
dc.contributor.authorBASSOI, L. H.pt_BR
dc.contributor.authorYOUNG, J. A.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.citationArea, v. 41, n. 1, p. 94-106, 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/631357pt_BR
dc.descriptionReducing poverty in rural areas of developing countries requires sustained and sustainable increases in agricultural water productivity. However, aside from traditional measures of precipitation, little is known about water available to farmers or how productively they use it. We present a crop-water productivity index (a ratio of the value of annual crop production to a dimensionless potential water availability index) for large water basins using readily available low-resolution data. The index is transferable, permits direct inter-basin comparisons, and is simple to calculate. We calculate the index for each municipality in the São Francisco river basin in Brazil. No clear patterns linking water availability and value of agricultural output are evident, even though clusters of municípios with high- and low-crop-water productivity emerge, and the former may be useful in guiding policies aimed at increasing water productivity. Finally, analyses of the effects of information uncertainty on the crop-water productivity index suggest that the returns to agricultural investments in certain places in the São Francisco river basin are more risky than others. Improvements in data quality and quantity can help refine estimates of the index and reduce their uncertainty. Key words: water productivity, irrigation, agricultural productivity, crop-water productivity index, water availability index, uncertainty propagatipt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectProdutividade agrícolapt_BR
dc.subjectProdutividade hídricaeng
dc.subjectÍndice de produtividadeeng
dc.titleA parsimonious crop-water productivity index: an application to Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-04-12T11:11:11Zpt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroBacia Hidrográficapt_BR
dc.subject.thesagroDesenvolvimento Agrícolapt_BR
dc.subject.thesagroManejo de Águapt_BR
dc.subject.thesagroSistema de Cultivoeng
dc.subject.nalthesaurusIrrigationpt_BR
riaa.ainfo.id631357pt_BR
riaa.ainfo.lastupdate2017-04-12pt_BR
dc.contributor.institutionMARCO P. MANETA, UNIVERSITY OF CALIFORNIApt_BR
dc.contributor.institutionPURNENDU N. SINGH, UNIVERSITY OF CALIFORNIAeng
dc.contributor.institutionMARCELO TORRES, UNIVERSITY OF CALIFORNIAeng
dc.contributor.institutionWESLEY W. WALLENDER, UNIVERSITY OF CALIFORNIAeng
dc.contributor.institutionSTEPHEN A. VOSTI, UNIVERSITY OF CALIFORNIAeng
dc.contributor.institutionLINEU NEIVA RODRIGUES, CPACeng
dc.contributor.institutionLUIS HENRIQUE BASSOI, CPATSAeng
dc.contributor.institutionJULIE A. YOUNG, UNIVERSITY OF CALIFORNIA.eng
Appears in Collections:Artigo em periódico indexado (CPATSA)

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