Publicação
Gestão do perímetro de rega da Barragem de Banca Furada: uma proposta
| Resumo: | The São Nicolau Island has recently benefited from its first dam, the Banca Furada. In a region where water availability is limited and it is critical to manage this resource. This work aims to draw up a proposal for improving irrigation management for the irrigation area of the Banca Furada dam. To prepare this paper was performed a socio-economic survey to farmers who will benefit on the irrigation perimeter Were selected 12 crops within the most commonly used by farmers in the area and raised three rainfall scenarios. The irrigation crops consumption was achieved in the three scenarios and then proceeded to the simulation of reservoir operation for the same scenarios with "Simula" programme in VBA (Visual Basic) developed by Pro- Sistemas. As result it was found, that the irrigation areas cannot depass 36 ha, 41 ha and 55 ha, for scenarios 1, 2 and 3 respectively. Crops showed a gross margin exceeding 1,000 euros. The water consumption of crops does not differ much between scenarios, with two water consumption peaks on the perimeter, from November to February and from March to June. |
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| Autores principais: | Sequeira, Erik Augusto da Cruz |
| Assunto: | irrigation perimeters management Banca Furada Dam reservoirs exploration simulation Cape Verde arid and semi-aride climate |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | português |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | The São Nicolau Island has recently benefited from its first dam, the Banca Furada. In a region where water availability is limited and it is critical to manage this resource. This work aims to draw up a proposal for improving irrigation management for the irrigation area of the Banca Furada dam. To prepare this paper was performed a socio-economic survey to farmers who will benefit on the irrigation perimeter Were selected 12 crops within the most commonly used by farmers in the area and raised three rainfall scenarios. The irrigation crops consumption was achieved in the three scenarios and then proceeded to the simulation of reservoir operation for the same scenarios with "Simula" programme in VBA (Visual Basic) developed by Pro- Sistemas. As result it was found, that the irrigation areas cannot depass 36 ha, 41 ha and 55 ha, for scenarios 1, 2 and 3 respectively. Crops showed a gross margin exceeding 1,000 euros. The water consumption of crops does not differ much between scenarios, with two water consumption peaks on the perimeter, from November to February and from March to June. |
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