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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
03/12/2020 |
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Data da última atualização: |
07/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PINHATIA, F. S. C.; RODRIGUES, L. N.; SOUZA, S. A. |
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Afiliação: |
LINEU NEIVA RODRIGUES, CPAC. |
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Título: |
Modelling the impact of on-farm reservoirs on dry season water availability in an agricultural catchment area of the Brazilian savannah. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Agricultural Water Management, v. 241, 2020. |
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Páginas: |
15 p. |
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ISSN: |
0378-3774 |
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Idioma: |
Português |
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Conteúdo: |
The São Marcos catchment (SAM) encompasses one of the largest center pivot areas in the Southern Hemisphere. Irrigation at SAM is highly dependent on small on-farm reservoirs (SR), specifically at the headwater subcatchments, where large center pivot irrigation areas are evident. However, the capacity and hydrological performance of those SR are largely unknown as their hydrological characteristics have not been widely assessed. The objective of this work was to establish a method to assess the impact of the SR network over dry season water availability at SAM. For this purpose, a model was developed to test the hypothesis that SR increase water availability at the local, sub-catchment and catchment scales. To this end, SR were mapped with submetric satellite images, and their volumes estimated by linear regression with other on-farm reservoirs with known volumes. Streamflow based on four gauged historical data was regionalized in a monthly time step for 4161 sub-catchments. Subsequently, SR were modelled individually, at the local scale, and as a group both at the sub-catchment scale (medium scale) and at the catchment scale (broad scale) in scenarios using Q95 and mean inflows. Results showed that remotely sensed surface area at full supply level (FSL) is the factor that caused the largest variation in the outputs, which has direct correlation with the upstream drainage area discharging to each SR. Simulations suggested that the combination of SR storage capacities have a high proportional impact in increasing water availability at headwater sub-catchments. However, the capacity of a single SR to augment local water availability is more pronounced when its upstream drainage area is 3 km² or greater. Furthermore, assuming there are no inflows of water during the dry season, a single SR must have a minimum FSL of 0.08 ha to result in any improvement in local water availability. MenosThe São Marcos catchment (SAM) encompasses one of the largest center pivot areas in the Southern Hemisphere. Irrigation at SAM is highly dependent on small on-farm reservoirs (SR), specifically at the headwater subcatchments, where large center pivot irrigation areas are evident. However, the capacity and hydrological performance of those SR are largely unknown as their hydrological characteristics have not been widely assessed. The objective of this work was to establish a method to assess the impact of the SR network over dry season water availability at SAM. For this purpose, a model was developed to test the hypothesis that SR increase water availability at the local, sub-catchment and catchment scales. To this end, SR were mapped with submetric satellite images, and their volumes estimated by linear regression with other on-farm reservoirs with known volumes. Streamflow based on four gauged historical data was regionalized in a monthly time step for 4161 sub-catchments. Subsequently, SR were modelled individually, at the local scale, and as a group both at the sub-catchment scale (medium scale) and at the catchment scale (broad scale) in scenarios using Q95 and mean inflows. Results showed that remotely sensed surface area at full supply level (FSL) is the factor that caused the largest variation in the outputs, which has direct correlation with the upstream drainage area discharging to each SR. Simulations suggested that the combination of SR storage capacities have a ... Mostrar Tudo |
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Thesagro: |
Bacia Hidrográfica; Irrigação por Pivô Central; Modelo Matemático; Pivô Central. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02601naa a2200217 a 4500
001 2127567
005 2020-12-07
008 2020 bl uuuu u00u1 u #d
022 $a0378-3774
100 1 $aPINHATIA, F. S. C.
245 $aModelling the impact of on-farm reservoirs on dry season water availability in an agricultural catchment area of the Brazilian savannah.$h[electronic resource]
260 $c2020
300 $a15 p.
520 $aThe São Marcos catchment (SAM) encompasses one of the largest center pivot areas in the Southern Hemisphere. Irrigation at SAM is highly dependent on small on-farm reservoirs (SR), specifically at the headwater subcatchments, where large center pivot irrigation areas are evident. However, the capacity and hydrological performance of those SR are largely unknown as their hydrological characteristics have not been widely assessed. The objective of this work was to establish a method to assess the impact of the SR network over dry season water availability at SAM. For this purpose, a model was developed to test the hypothesis that SR increase water availability at the local, sub-catchment and catchment scales. To this end, SR were mapped with submetric satellite images, and their volumes estimated by linear regression with other on-farm reservoirs with known volumes. Streamflow based on four gauged historical data was regionalized in a monthly time step for 4161 sub-catchments. Subsequently, SR were modelled individually, at the local scale, and as a group both at the sub-catchment scale (medium scale) and at the catchment scale (broad scale) in scenarios using Q95 and mean inflows. Results showed that remotely sensed surface area at full supply level (FSL) is the factor that caused the largest variation in the outputs, which has direct correlation with the upstream drainage area discharging to each SR. Simulations suggested that the combination of SR storage capacities have a high proportional impact in increasing water availability at headwater sub-catchments. However, the capacity of a single SR to augment local water availability is more pronounced when its upstream drainage area is 3 km² or greater. Furthermore, assuming there are no inflows of water during the dry season, a single SR must have a minimum FSL of 0.08 ha to result in any improvement in local water availability.
650 $aBacia Hidrográfica
650 $aIrrigação por Pivô Central
650 $aModelo Matemático
650 $aPivô Central
700 1 $aRODRIGUES, L. N.
700 1 $aSOUZA, S. A.
773 $tAgricultural Water Management$gv. 241, 2020.
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Embrapa Cerrados (CPAC) |
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| Registros recuperados : 13 | |
| 2. |  | FORS, R. O.; IGNACIO, I. G.; BERBARA, R. L. L.; SAGGIN JUNIOR, O. J. Diversity of arbuscular mycorrhizal fungi in areas of sugarcane inoculation with nitrogen frixing bacteria. In: SYMPOSIUM ON BIOLOGICAL NITROGEN FIXATION, 16., LATINAMERICAN WORKSHOP OF PGPR, 4., RELARE, 19., 2018, Foz do Iguaçu. Book of abstract....Foz do Iguaçu: Emprapa, 2018. Seeion 2, Poster II.7| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 4. | | SESMA, R. F. G.; IGNACIO, I. G.; SAGGIN JUNIOR, O. J.; PATREZE, C. M. Sequenciamento de nova geração de Gigaspora margarita: da extração do DNA à corrida. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., FERTBIO 2016. Goiânia. Rumo aos novos desafios: anais. Goiânia: UFG, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 6. | | FERNANDES, S. G.; MACHADO, C. T. de T.; IGNACIO, I. G.; PEREIRA, C. D.; FERNANDES, L. A. Atividade micorrízica em áreas de agricultores familiares no Norte de Minas Gerais. In: REUNIÃO BRASILEIRA DE CIÊNCIA DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa, MG: SBCS, 2012. FERTBIO 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 7. | | FERNANDES, S. G.; MACHADO, C. T. de T.; IGNACIO, I. G.; PEREIRA, C. D.; FERNANDES, L. A. Atividade micorrízica em áreas de agricultores familiares no norte de Minas Gerais. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 9. | | MAEDA, C. K. S.; SANTOS, L. G. A. dos; IGNACIO, I. G.; SAGGIN JUNIOR, O. J.; PATREZE, C. M. Levantamento da Comunidade de Fungos Micorrízicos Arbusculares em Praias do Rio de Janeiro. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., FERTBIO 2016. Goiânia. Rumo aos novos desafios: anais. Goiânia: UFG, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 10. | | SILVA, M. A. da; VIEIRA, I. de A.; IGNACIO, I. G.; ROUWS, J. R. C.; MOREIRA, Z. M.; FREIRE, J. M. Inoculation efficiency of rhizobia and vesicular arbuscular mycorrhizal in Parapiptadenia rigida seedlings in nursery conditions. In: WORLD CONFERENCE ON ECOLOGICAL RESTORATION, 7.; CONGRESO IBEROAMERICANO Y DEL CARIBE DE RESTAURACIÓN ECOLÓGICA, 5.; CONFERÊNCIA BRASILEIRA DE RESTAURAÇÃO ECOLÓGICA, 1., 2017, Foz do Iguassu Linking science and practice for a better world: book of abstracts. Londrina: Sociedade Brasileira de Restauração Ecológica, 2017. 448 p. p. 419| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 11. | | WERNECK, C. G.; GUEDES, J. do N.; SAMPAIO JÚNIOR, J; NOBRE, C. P.; IGNACIO, I. G.; SILVA, E. M. R. da; SAGGIN JUNIOR, O. J. Diversidade de fungos micorrízicos arbusculares em diferentes sistemas de manejo agroecológico de cafeeiro. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa: SBCS, 2010.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 13. | | ZILLI, J. E.; SOARES, L. H. de B.; PITARD, R. M.; SAGGIN JUNIOR, O. J.; MACEDO, A. V. de M.; CAMACHO, N. N.; DOURADO, F. dos S.; CAROLLO, E. M.; FARIAS, D. A. de; IGNACIO, I. G.; MARTINS, E. Portfólio de serviços oferecidos ao setor produtivo pelo centro de recursos biológicos Johanna Dobereiner (CRB-JD). In: REUNIÃO DA REDE DE LABORATÓRIOS PARA RECOMENDAÇÃO, PADRONIZAÇÃO E DIFUSÃO DE TECNOLOGIAS DE INOCULANTES MICROBIANOS DE INTERESSE AGRÍCOLA - RELARE, 19., 2018, Foz do Iguaçu. Anais... Foz do Iguaçu: Embrapa, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 13 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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