Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UCB |
Texto Completo: | http://twingo.ucb.br:8080/jspui/handle/10869/425 https://repositorio.ucb.br:9443/jspui/handle/123456789/7522 |
Resumo: | Most activities that support economic growth in the Sa˜o Francisco River 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 Sa˜o Francisco River has projected an increase ofmore than 500,000 ha 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 mass 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. |
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Maneta, Marco P.Torres, MarceloWallender, Wesley W.Stephen, VostiKirby, MacBassoi, Luís HenriqueRodrigues, Lineu Neiva2016-10-10T03:51:47Z2016-10-10T03:51:47Z2009MANETA, Marco P. et al. Water demand and flows in the São Francisco River Basin (Brazil) with increased irrigation. Agricultural Water Management, v. 96, n.8, p. 1191-1200, 2009.http://twingo.ucb.br:8080/jspui/handle/10869/425https://repositorio.ucb.br:9443/jspui/handle/123456789/7522Most activities that support economic growth in the Sa˜o Francisco River 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 Sa˜o Francisco River has projected an increase ofmore than 500,000 ha 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 mass 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.Made available in DSpace on 2016-10-10T03:51:47Z (GMT). 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dc.title.pt_BR.fl_str_mv |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
title |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
spellingShingle |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation Maneta, Marco P. Water management Large basin modeling Water budget Monte Carlo simulations |
title_short |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
title_full |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
title_fullStr |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
title_full_unstemmed |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
title_sort |
Water demand and flows in the São Francisco river basin (Brazil) with increased irrigation |
author |
Maneta, Marco P. |
author_facet |
Maneta, Marco P. Torres, Marcelo Wallender, Wesley W. Stephen, Vosti Kirby, Mac Bassoi, Luís Henrique Rodrigues, Lineu Neiva |
author_role |
author |
author2 |
Torres, Marcelo Wallender, Wesley W. Stephen, Vosti Kirby, Mac Bassoi, Luís Henrique Rodrigues, Lineu Neiva |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Maneta, Marco P. Torres, Marcelo Wallender, Wesley W. Stephen, Vosti Kirby, Mac Bassoi, Luís Henrique Rodrigues, Lineu Neiva |
dc.subject.por.fl_str_mv |
Water management Large basin modeling Water budget Monte Carlo simulations |
topic |
Water management Large basin modeling Water budget Monte Carlo simulations |
dc.description.abstract.por.fl_txt_mv |
Most activities that support economic growth in the Sa˜o Francisco River 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 Sa˜o Francisco River has projected an increase ofmore than 500,000 ha 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 mass 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. |
dc.description.version.pt_BR.fl_txt_mv |
Sim |
dc.description.status.pt_BR.fl_txt_mv |
Publicado |
description |
Most activities that support economic growth in the Sa˜o Francisco River 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 Sa˜o Francisco River has projected an increase ofmore than 500,000 ha 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 mass 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. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2016-10-10T03:51:47Z |
dc.date.available.fl_str_mv |
2016-10-10T03:51:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
status_str |
publishedVersion |
format |
article |
dc.identifier.citation.fl_str_mv |
MANETA, Marco P. et al. Water demand and flows in the São Francisco River Basin (Brazil) with increased irrigation. Agricultural Water Management, v. 96, n.8, p. 1191-1200, 2009. |
dc.identifier.uri.fl_str_mv |
http://twingo.ucb.br:8080/jspui/handle/10869/425 https://repositorio.ucb.br:9443/jspui/handle/123456789/7522 |
identifier_str_mv |
MANETA, Marco P. et al. Water demand and flows in the São Francisco River Basin (Brazil) with increased irrigation. Agricultural Water Management, v. 96, n.8, p. 1191-1200, 2009. |
url |
http://twingo.ucb.br:8080/jspui/handle/10869/425 https://repositorio.ucb.br:9443/jspui/handle/123456789/7522 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
Texto |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UCB instname:Universidade Católica de Brasília (UCB) instacron:UCB |
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Universidade Católica de Brasília (UCB) |
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UCB |
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UCB |
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Repositório Institucional da UCB |
collection |
Repositório Institucional da UCB |
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