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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
23/08/2016 |
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Data da última atualização: |
26/05/2017 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
TORRES, M. de O.; HOWITT, R.; RODRIGUES, L. N. |
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Afiliação: |
LINEU NEIVA RODRIGUES, CPAC. |
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Título: |
Modeling the economic benefits and distributional impacts of supplemental irrigation. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Water Resources and Economics, v. 14, April 2016. |
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DOI: |
http://dx.doi.org.ez103.periodicos.capes.gov.br/10.1016/j.wre.2016.03.001 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Standard hydroeconomic policy models are usually applied to areas in the world where precipitation is very low and crops are fully irrigated. As such, these models pool the annual stored precipitation plus other water supplies and assume that this total water supply can be allocated by time and place. This water pooling approach treats precipitation and irrigation water as fully substitutable. In many irrigated areas, however, a significant amount of water used by crops comes from precipitation. In fact the majority of the global irrigation systems are supplemental to rainfall and, in this context, precipitation and water stored in reservoirs are not fully substitutable. By using primary data from a watershed in Brazil, where precipitation and supplemental water use occur, this paper shows that standard models under-estimate the predicted drought impacts. The paper investigates this issue by setting up two model specifications of regional net-revenue maximization based on a calibrated economic programming model integrated with a mass balance hydrologic model. In one model the substitution between precipitation and irrigation water is explicitly formalized and in the other precipitation and irrigation water are aggregated together in a single water supply. The models are used to estimate and predict the short-run impacts of precipitation cuts on irrigation reservoir levels and the impacts of lower irrigation water supply on farmers' agricultural income. In comparing the results, we find that the standard aggregated hydroeconomic model under-estimates losses in expected returns to farmers and also results in less variability of returns under stochastic rainfall. MenosAbstract: Standard hydroeconomic policy models are usually applied to areas in the world where precipitation is very low and crops are fully irrigated. As such, these models pool the annual stored precipitation plus other water supplies and assume that this total water supply can be allocated by time and place. This water pooling approach treats precipitation and irrigation water as fully substitutable. In many irrigated areas, however, a significant amount of water used by crops comes from precipitation. In fact the majority of the global irrigation systems are supplemental to rainfall and, in this context, precipitation and water stored in reservoirs are not fully substitutable. By using primary data from a watershed in Brazil, where precipitation and supplemental water use occur, this paper shows that standard models under-estimate the predicted drought impacts. The paper investigates this issue by setting up two model specifications of regional net-revenue maximization based on a calibrated economic programming model integrated with a mass balance hydrologic model. In one model the substitution between precipitation and irrigation water is explicitly formalized and in the other precipitation and irrigation water are aggregated together in a single water supply. The models are used to estimate and predict the short-run impacts of precipitation cuts on irrigation reservoir levels and the impacts of lower irrigation water supply on farmers' agricultural income. In comparing... Mostrar Tudo |
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Palavras-Chave: |
Applied microeconomics; Hydroeconomic model; Mathematical programming. |
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Thesagro: |
Irrigação; Recurso hídrico. |
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Thesaurus Nal: |
agricultural income; water resources. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02459naa a2200241 a 4500
001 2051487
005 2017-05-26
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org.ez103.periodicos.capes.gov.br/10.1016/j.wre.2016.03.001$2DOI
100 1 $aTORRES, M. de O.
245 $aModeling the economic benefits and distributional impacts of supplemental irrigation.
260 $c2016
520 $aAbstract: Standard hydroeconomic policy models are usually applied to areas in the world where precipitation is very low and crops are fully irrigated. As such, these models pool the annual stored precipitation plus other water supplies and assume that this total water supply can be allocated by time and place. This water pooling approach treats precipitation and irrigation water as fully substitutable. In many irrigated areas, however, a significant amount of water used by crops comes from precipitation. In fact the majority of the global irrigation systems are supplemental to rainfall and, in this context, precipitation and water stored in reservoirs are not fully substitutable. By using primary data from a watershed in Brazil, where precipitation and supplemental water use occur, this paper shows that standard models under-estimate the predicted drought impacts. The paper investigates this issue by setting up two model specifications of regional net-revenue maximization based on a calibrated economic programming model integrated with a mass balance hydrologic model. In one model the substitution between precipitation and irrigation water is explicitly formalized and in the other precipitation and irrigation water are aggregated together in a single water supply. The models are used to estimate and predict the short-run impacts of precipitation cuts on irrigation reservoir levels and the impacts of lower irrigation water supply on farmers' agricultural income. In comparing the results, we find that the standard aggregated hydroeconomic model under-estimates losses in expected returns to farmers and also results in less variability of returns under stochastic rainfall.
650 $aagricultural income
650 $awater resources
650 $aIrrigação
650 $aRecurso hídrico
653 $aApplied microeconomics
653 $aHydroeconomic model
653 $aMathematical programming
700 1 $aHOWITT, R.
700 1 $aRODRIGUES, L. N.
773 $tWater Resources and Economics$gv. 14, April 2016.
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| Registros recuperados : 7 | |
| 1. |  | BRABO, M. F.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. Aproveitamento Aquícola dos Grandes Reservatórios Brasileiros. BRABO, M. F.; VERAS, G. C.; PAIVA, R. S. FUJIMOTO, R. Y. Aproveitamento Aquícola dos Grandes Reservatórios Brasileiros. Revista Científica de Pesca, Aquicultura e Limnologia, São Paulo, v. 40, n. 1, p. 121-134, 2014. Disponível em: <http://www.pesca.sp.gov.br/sumario40_1.php>. Acesso em: 05 fev. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 2. | | BRABO, M. F.; CAMPELO, D. A. V.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. A experiência de parques aquícolas no reservatório da Usina Hidrelétrica de Tucuruí, Amazônia, Brasil. Acta of Fisheries and Aquatic Resources, v. 1, n. 5, p. 52-58, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 3. | | BRABO, M. F.; FLEXA, C. E.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. Viabilidade econômica da piscicultura em tanques-rede no reservatório da usina hidrelétrica de Tucurí, Estado do Pará. Informações Econômicas, São Paulo, v. 43, n. 3, maio/jun. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 4. | | CORRÊA, C. B.; VERAS, G. C.; SILVA, G. P. S. da; BRABO, M. F.; SILVA, E. M. Performance, body composition, and physiological response of tambaqui fed diet with green tea extract. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 5, p. 540-546, maio, 2018. Titulo em português: Desempenho, composição corporal e respostas fisiológicas de tambaqui alimentados com dietas com extrato de chá-verde.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | BRABO, M. F.; FERREIRA, L. de A.; VERAS, G. C.; CINTRA, I. H. A.; PAIVA, R. S.; FUJIMOTO, R. Y. Proposta de indicadores de sustentabilidade para parques aquícolas continentais: avaliação de um empreendimento na Amazônia. Revista Brasileira de Ciências Agrárias, Recife, v. 10, n. 2, p. 315-321, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 6. | | VERAS, G. C.; SALARO, A. L.; ZUANON, J. A. S.; CARNEIRO, A. P. S.; CAMPELO, D. A. V.; MURGAS, L. D. S. Growth performance and body composition of giant trahira fingerlings fed diets with different protein and energy levels. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 9, p. 1021-1027, set. 2010 Título em português: Crescimento e composição corporal de alevinos de trairão alimentados com diferentes níveis de proteína e energia nas dietas.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | RAMOS, S. E.; CARVALHO A. F. S. de; CASTRO, T. F. D.; VASCONCELOS, A. C. N.; VERAS, G. C.; MOURÃO JÚNIOR, C. A.; MURGAS, L. D. S. Cannibalism, growth performance, and body composition of giant trahira juveniles under different photoperiods. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 6, p. 664-672, June, 2018. Título em português: Canibalismo, desempenho de crescimento e composição corporal de juvenis de trairão em diferentes fotoperíodos.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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