| spelling |
2022-03-08T13:17:29Z2022-03-08T13:17:29Z20192449305319https://doi.org/10.15202/1981896.2019v24n49p30519811896http://hdl.handle.net/1843/39855https://orcid.org/0000-0001-8738-5369http://orcid.org/0000-0003-4302-008XO rio São Francisco é um dos rios mais importantes do Brasil, possuindo grande relevância nas regiões sudeste e nordeste, devido a sua localização geográfica e o desenvolvimento de várias atividades econômicas. A principal atividade econômica na região é a agricultura irrigada. Outra atividade econômica que também necessita de água na bacia são as usinas hidroelétricas. As usinas instaladas na calha do rio São Francisco necessitam de grandes volumes de água para a geração de energia, ao passo que da irrigação, deriva uma quantidade considerável da vazão do rio São Francisco para atender as demandas hídricas das culturas. Assim uma atividade exerce influência sobre a outra. Logo o objetivo do trabalho foi estimar a potência hidrelétrica que deixa de ser produzida em virtude da demanda hídrica necessária para atender as necessidades hídricas das culturas da banana, manga, uva, cana, milho e feijão na bacia do rio São Francisco. Foram estimadas a vazão mensal demandada pelas culturas e em seguida a potência instalada de deixa de ser gerada por tal vazão. A potência total instalada nas usinas hidrelétricas em estudo é de 9.971.500 kW, e os resultados mostram que no mês de setembro é onde se tem maior redução no potencial de irrigação (0,37%) o que corresponde a 36472,56 kW, seguido pelo mês de julho (0,24%), equivalendo a 25927,20 kW. Os resultados comprovam que nos meses da estação seca maiores são os impactos da agricultura irrigada em virtude da maior necessidade de irrigação nesse período.The São Francisco River is one of the most important rivers in Brazil, having great relevance in the southeast and northeast regions, due to its geographical location and the development of various economic activities. The main economic activity in the region is irrigated agriculture. Another economic activity that also needs water in the basin is hydroelectric plants. The plants installed in the São Francisco river gutter require large volumes of water for power generation, while irrigation generates a considerable amount of the São Francisco river flow to meet crop water demands. Thus one activity influences the other. Therefore,the objective of this study was to estimate the hydroelectric power that is no longer produced due to the water demand needed to meet the water needs of banana, mango, grape, sugarcane, corn and bean crops in the São Francisco river basin. The monthly flow demanded by the crops was estimated and then the installed power ceases to be generated by such flow. The total installed power in the hydroelectric plants under study is 9,971,500 kW, and the results show that in September is where there is the largest reduction in irrigation potential (0.37%), which corresponds to 36472,56 kW, followed by July (0.24%), equivalent to 25927.20 kW. The results show that in the dry season months the impacts of irrigated agriculture are greater due to the greater need for irrigation in this period.porUniversidade Federal de Minas GeraisUFMGBrasilICA - INSTITUTO DE CIÊNCIAS AGRÁRIASRevista augustus (unisuam. online)AgriculturaRecursos hídricosIrrigaçãoEnergia hidrelétricaAgriculturaRecursos HídricosIrrigaçãoEnergiaImpacto da agricultura irrigada na potência hidrelétrica instalada na bacia bacia do rio São FranciscoImpact of irrigated agriculture on hydroelectric power installed in the São Francisco river basininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://revistas.unisuam.edu.br/index.php/revistaaugustus/article/view/477Felipe Bernardes SilvaLaura Thebit de AlmeidaEdson de Oliveira Vieirainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/39855/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALIMPACTO DA AGRICULTURA IRRIGADA NA POTÊNCIA HIDRELÉTRICA INSTALADA NA BACIA DO RIO SÃO FRANCISCO.pdfIMPACTO DA AGRICULTURA IRRIGADA NA POTÊNCIA HIDRELÉTRICA INSTALADA NA BACIA DO RIO SÃO FRANCISCO.pdfapplication/pdf6236030https://repositorio.ufmg.br/bitstream/1843/39855/2/IMPACTO%20DA%20AGRICULTURA%20IRRIGADA%20NA%20POT%c3%8aNCIA%20HIDREL%c3%89TRICA%20INSTALADA%20NA%20BACIA%20DO%20RIO%20S%c3%83O%20FRANCISCO.pdfbfc2fbba95a54b6d7c1fddceab34ba8dMD521843/398552022-03-08 10:17:29.569oai:repositorio.ufmg.br:1843/39855TElDRU7vv71BIERFIERJU1RSSUJVSe+/ve+/vU8gTu+/vU8tRVhDTFVTSVZBIERPIFJFUE9TSVTvv71SSU8gSU5TVElUVUNJT05BTCBEQSBVRk1HCiAKCkNvbSBhIGFwcmVzZW50Ye+/ve+/vW8gZGVzdGEgbGljZW7vv71hLCB2b2Pvv70gKG8gYXV0b3IgKGVzKSBvdSBvIHRpdHVsYXIgZG9zIGRpcmVpdG9zIGRlIGF1dG9yKSBjb25jZWRlIGFvIFJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRk1HIChSSS1VRk1HKSBvIGRpcmVpdG8gbu+/vW8gZXhjbHVzaXZvIGUgaXJyZXZvZ++/vXZlbCBkZSByZXByb2R1emlyIGUvb3UgZGlzdHJpYnVpciBhIHN1YSBwdWJsaWNh77+977+9byAoaW5jbHVpbmRvIG8gcmVzdW1vKSBwb3IgdG9kbyBvIG11bmRvIG5vIGZvcm1hdG8gaW1wcmVzc28gZSBlbGV0cu+/vW5pY28gZSBlbSBxdWFscXVlciBtZWlvLCBpbmNsdWluZG8gb3MgZm9ybWF0b3Mg77+9dWRpbyBvdSB277+9ZGVvLgoKVm9j77+9IGRlY2xhcmEgcXVlIGNvbmhlY2UgYSBwb2zvv710aWNhIGRlIGNvcHlyaWdodCBkYSBlZGl0b3JhIGRvIHNldSBkb2N1bWVudG8gZSBxdWUgY29uaGVjZSBlIGFjZWl0YSBhcyBEaXJldHJpemVzIGRvIFJJLVVGTUcuCgpWb2Pvv70gY29uY29yZGEgcXVlIG8gUmVwb3NpdO+/vXJpbyBJbnN0aXR1Y2lvbmFsIGRhIFVGTUcgcG9kZSwgc2VtIGFsdGVyYXIgbyBjb250Ze+/vWRvLCB0cmFuc3BvciBhIHN1YSBwdWJsaWNh77+977+9byBwYXJhIHF1YWxxdWVyIG1laW8gb3UgZm9ybWF0byBwYXJhIGZpbnMgZGUgcHJlc2VydmHvv73vv71vLgoKVm9j77+9IHRhbWLvv71tIGNvbmNvcmRhIHF1ZSBvIFJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRk1HIHBvZGUgbWFudGVyIG1haXMgZGUgdW1hIGPvv71waWEgZGUgc3VhIHB1YmxpY2Hvv73vv71vIHBhcmEgZmlucyBkZSBzZWd1cmFu77+9YSwgYmFjay11cCBlIHByZXNlcnZh77+977+9by4KClZvY++/vSBkZWNsYXJhIHF1ZSBhIHN1YSBwdWJsaWNh77+977+9byDvv70gb3JpZ2luYWwgZSBxdWUgdm9j77+9IHRlbSBvIHBvZGVyIGRlIGNvbmNlZGVyIG9zIGRpcmVpdG9zIGNvbnRpZG9zIG5lc3RhIGxpY2Vu77+9YS4gVm9j77+9IHRhbWLvv71tIGRlY2xhcmEgcXVlIG8gZGVw77+9c2l0byBkZSBzdWEgcHVibGljYe+/ve+/vW8gbu+/vW8sIHF1ZSBzZWphIGRlIHNldSBjb25oZWNpbWVudG8sIGluZnJpbmdlIGRpcmVpdG9zIGF1dG9yYWlzIGRlIG5pbmd177+9bS4KCkNhc28gYSBzdWEgcHVibGljYe+/ve+/vW8gY29udGVuaGEgbWF0ZXJpYWwgcXVlIHZvY++/vSBu77+9byBwb3NzdWkgYSB0aXR1bGFyaWRhZGUgZG9zIGRpcmVpdG9zIGF1dG9yYWlzLCB2b2Pvv70gZGVjbGFyYSBxdWUgb2J0ZXZlIGEgcGVybWlzc++/vW8gaXJyZXN0cml0YSBkbyBkZXRlbnRvciBkb3MgZGlyZWl0b3MgYXV0b3JhaXMgcGFyYSBjb25jZWRlciBhbyBSZXBvc2l077+9cmlvIEluc3RpdHVjaW9uYWwgZGEgVUZNRyBvcyBkaXJlaXRvcyBhcHJlc2VudGFkb3MgbmVzdGEgbGljZW7vv71hLCBlIHF1ZSBlc3NlIG1hdGVyaWFsIGRlIHByb3ByaWVkYWRlIGRlIHRlcmNlaXJvcyBlc3Tvv70gY2xhcmFtZW50ZSBpZGVudGlmaWNhZG8gZSByZWNvbmhlY2lkbyBubyB0ZXh0byBvdSBubyBjb250Ze+/vWRvIGRhIHB1YmxpY2Hvv73vv71vIG9yYSBkZXBvc2l0YWRhLgoKQ0FTTyBBIFBVQkxJQ0Hvv73vv71PIE9SQSBERVBPU0lUQURBIFRFTkhBIFNJRE8gUkVTVUxUQURPIERFIFVNIFBBVFJPQ++/vU5JTyBPVSBBUE9JTyBERSBVTUEgQUfvv71OQ0lBIERFIEZPTUVOVE8gT1UgT1VUUk8gT1JHQU5JU01PLCBWT0Pvv70gREVDTEFSQSBRVUUgUkVTUEVJVE9VIFRPRE9TIEUgUVVBSVNRVUVSIERJUkVJVE9TIERFIFJFVklT77+9TyBDT01PIFRBTULvv71NIEFTIERFTUFJUyBPQlJJR0Hvv73vv71FUyBFWElHSURBUyBQT1IgQ09OVFJBVE8gT1UgQUNPUkRPLgoKTyBSZXBvc2l077+9cmlvIEluc3RpdHVjaW9uYWwgZGEgVUZNRyBzZSBjb21wcm9tZXRlIGEgaWRlbnRpZmljYXIgY2xhcmFtZW50ZSBvIHNldSBub21lKHMpIG91IG8ocykgbm9tZXMocykgZG8ocykgZGV0ZW50b3IoZXMpIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBkYSBwdWJsaWNh77+977+9bywgZSBu77+9byBmYXLvv70gcXVhbHF1ZXIgYWx0ZXJh77+977+9bywgYWzvv71tIGRhcXVlbGFzIGNvbmNlZGlkYXMgcG9yIGVzdGEgbGljZW7vv71hLgo=Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oaiopendoar:2022-03-08T13:17:29Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
|