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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal; Embrapa Territorial. |
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Data corrente: |
10/12/2020 |
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Data da última atualização: |
17/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. D. de; FANTIN-CRUZ, I.; CAMPOS, J. A.; CAMPOS, M. M. de; MINGOTI, R.; SOUZA, M. L. de; FIGUEIREDO, D. M. de; DORES, E. F. G. de C.; PEDROLLO, O.; HAMILTON, S. K. |
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Afiliação: |
MARCIA DIVINA DE OLIVEIRA, CPAP; IBRAIM FANTIN-CRUZ, Federal University of Mato Grosso, Cuiabá; JULIANA ANDRADE CAMPOS, Federal University of Rio Grande do Sul, Porto Alegre; MARCEL MEDINA DE CAMPOS, Federal University of Mato Grosso; RAFAEL MINGOTI, CNPM; MARCELO LUIZ DE SOUZA, Brazilian National Water Agency, Brasília. DF; DANIELA MAIMONI DE FIGUEIREDO, Federal University of Mato Grosso, Cuiabá; ELIANA FREIRE GASPAR DE CARVALHO DORES, Federal University of Mato Grosso, Cuiabá; OLAVO PEDROLLO, Federal University of Rio Grande do Sul; STEPHEN K. HAMILTON, Michigan State University. |
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Título: |
Further development of small hydropower facilities may alter nutrient transport to the Pantanal wetland of Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Frontiers in Environmental Science, v. 8, 577748, nov. 2020. |
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DOI: |
https://doi.org/10.3389/fenvs.2020.577793 |
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Idioma: |
Português |
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Conteúdo: |
Small hydropower (SHP) facilities, defined variably but usually by installed capacities of <10-50 MW, are proliferating around the world, particularly in tropical and subtropical regions. Compared to larger dams, SHPs are generally viewed as having less environmental impact, although there has been little research to support that assertion. Numerous SHPs have been built, and many more are in development or proposed, in rivers that drain into the Pantanal, a world-renowned floodplain wetland system located mostly in Brazil. The upland tributaries are important sources of nutrients to the Pantanal, affecting the biological productivity of downstream floodplains. This study presents measurements from upstream and downstream of 25 current hydropower facilities, most of which are SHPs, throughout the upland watersheds of the Upper Paraguay River basin to reveal how these facilities may affect the concentrations and transport of nutrients in rivers flowing to the Pantanal. Artificial neural network models estimated the impact of building 80 future SHPs on nutrient transport into the Pantanal, based on observations at current facilities as well as the spatial distribution of future facilities. Overall impacts of current hydropower facilities were not large, and in most cases were indistinguishable based on comparisons between upstream and downstream. The short water residence times of reservoirs associated with SHPs likely explain their tendency to have little or no effect on nutrient transport. However, model predictions for hydropower facilities that may be built in the future, many on rivers with higher discharge and sediment loads, point to significant reductions in overall TN (8%) and TP (29%) transport, with potential negative consequences for river and floodplain productivity. Negative impacts may be either because the rivers carry low nutrient concentrations and are thereby sensitive to oligotrophication, or they are particularly important overall nutrient sources supporting ecosystem productivity in downstream rivers and floodplains. Together with a parallel study of sediment transport, these results support recommendations that several river systems presently lacking dams in their lower reaches should be excluded from future hydropower development to maintain the nutrient and sediment supply to the Pantanal. MenosSmall hydropower (SHP) facilities, defined variably but usually by installed capacities of <10-50 MW, are proliferating around the world, particularly in tropical and subtropical regions. Compared to larger dams, SHPs are generally viewed as having less environmental impact, although there has been little research to support that assertion. Numerous SHPs have been built, and many more are in development or proposed, in rivers that drain into the Pantanal, a world-renowned floodplain wetland system located mostly in Brazil. The upland tributaries are important sources of nutrients to the Pantanal, affecting the biological productivity of downstream floodplains. This study presents measurements from upstream and downstream of 25 current hydropower facilities, most of which are SHPs, throughout the upland watersheds of the Upper Paraguay River basin to reveal how these facilities may affect the concentrations and transport of nutrients in rivers flowing to the Pantanal. Artificial neural network models estimated the impact of building 80 future SHPs on nutrient transport into the Pantanal, based on observations at current facilities as well as the spatial distribution of future facilities. Overall impacts of current hydropower facilities were not large, and in most cases were indistinguishable based on comparisons between upstream and downstream. The short water residence times of reservoirs associated with SHPs likely explain their tendency to have little or no effect on nutri... Mostrar Tudo |
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Thesagro: |
Barragem; Hidrelétrica; Preservação da Natureza. |
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Thesaurus Nal: |
Biopreservation; Dams (hydrology); Hydroelectric power. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03332naa a2200313 a 4500
001 2127969
005 2022-02-17
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/fenvs.2020.577793$2DOI
100 1 $aOLIVEIRA, M. D. de
245 $aFurther development of small hydropower facilities may alter nutrient transport to the Pantanal wetland of Brazil.$h[electronic resource]
260 $c2020
520 $aSmall hydropower (SHP) facilities, defined variably but usually by installed capacities of <10-50 MW, are proliferating around the world, particularly in tropical and subtropical regions. Compared to larger dams, SHPs are generally viewed as having less environmental impact, although there has been little research to support that assertion. Numerous SHPs have been built, and many more are in development or proposed, in rivers that drain into the Pantanal, a world-renowned floodplain wetland system located mostly in Brazil. The upland tributaries are important sources of nutrients to the Pantanal, affecting the biological productivity of downstream floodplains. This study presents measurements from upstream and downstream of 25 current hydropower facilities, most of which are SHPs, throughout the upland watersheds of the Upper Paraguay River basin to reveal how these facilities may affect the concentrations and transport of nutrients in rivers flowing to the Pantanal. Artificial neural network models estimated the impact of building 80 future SHPs on nutrient transport into the Pantanal, based on observations at current facilities as well as the spatial distribution of future facilities. Overall impacts of current hydropower facilities were not large, and in most cases were indistinguishable based on comparisons between upstream and downstream. The short water residence times of reservoirs associated with SHPs likely explain their tendency to have little or no effect on nutrient transport. However, model predictions for hydropower facilities that may be built in the future, many on rivers with higher discharge and sediment loads, point to significant reductions in overall TN (8%) and TP (29%) transport, with potential negative consequences for river and floodplain productivity. Negative impacts may be either because the rivers carry low nutrient concentrations and are thereby sensitive to oligotrophication, or they are particularly important overall nutrient sources supporting ecosystem productivity in downstream rivers and floodplains. Together with a parallel study of sediment transport, these results support recommendations that several river systems presently lacking dams in their lower reaches should be excluded from future hydropower development to maintain the nutrient and sediment supply to the Pantanal.
650 $aBiopreservation
650 $aDams (hydrology)
650 $aHydroelectric power
650 $aBarragem
650 $aHidrelétrica
650 $aPreservação da Natureza
700 1 $aFANTIN-CRUZ, I.
700 1 $aCAMPOS, J. A.
700 1 $aCAMPOS, M. M. de
700 1 $aMINGOTI, R.
700 1 $aSOUZA, M. L. de
700 1 $aFIGUEIREDO, D. M. de
700 1 $aDORES, E. F. G. de C.
700 1 $aPEDROLLO, O.
700 1 $aHAMILTON, S. K.
773 $tFrontiers in Environmental Science$gv. 8, 577748, nov. 2020.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Biblioteca |
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| Registros recuperados : 14 | |
| 2. |  | PINTO NETO, A.; DEMEZUK, E.; PREVIATO, P. F. G.; MOTA, M. F.; ACCO, A.; FONSECA, J. F. da. Avaliação de diferentes métodos de colheita de embriões bovinos. Acta Scientiae Veterinariae, Porto Alegre, v. 34, supl. 1, p. s511, 2006. Edição dos resumos da 20. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, MG, agosto 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 3. | | PREVIATO, P. F. G.; PINTO NETO, A.; WERNER, P. R.; ACCO, A.; MOTA, M. F.; SILVA, A. V.; FONSECA, J. F. da. Alterações morfológicas nos órgãos genitais de cães e gatos provenientes de vilas rurais na região de Umuarama, PR. Acta Scientiae Veterinariae, Porto Alegre, v. 34, supl. 1, p. s583, 2006. Edição dos resumos da 20. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, MG, agosto 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 4. | | FONSECA, J. F. da; BRUSCHI, J. H.; BARTZ, C.; GONZALEZ, S. L.; JOGAIB, P.; BRANDÃO, F. Z.; PINTO NETO, A.; SOUZA, J. M. G. Efeitos do turno de administração hormonal sobre a indução de estro em cabras Toggenburg em anestro estacional. Acta Scientiae Veterinariae, v. 35, p. s1280, 2007. Suplemento 3. Edição dos anais da 21o. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões - SBTE, Salvador, 2007.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 5. | | FONSECA, J. F. da; MAFFILI, V. V.; RODRIGUES, M. T.; SANTOS, A. D. F.; ROVAY, H.; PINTO NETO, A.; BRANDÃO, F. Z.; TORES, C. A. A. Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats. Animal Reproduction, v. 3, n. 4, p. 410-414, Oct./Dec. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 6. | | GREGIANINI, H. A. G.; CARNEIRO JUNIOR, J. M.; PINTO NETO, A.; COSTA FILHO, L. C. da C.; GREGIANINI, J. T. F.; PINHEIRO, A. K.; TRENKEL, C. K. G. Precocidade sexual de novilhas Nelore em rebanho sob seleção no Estado do Acre. Research, Society and Development, v. 10, n. 4, e16310413945, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Acre. |
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| 7. | | PINTO NETO, A.; LUCCA, F. M.; ALBERTON, J.; MOTA, M. F.; BORGES, A. M.; ACCO, A.; FONSECA, J. F. da; SILVA, A. V. Avaliação da influência do flunixin meglumine sobre os níveis séricos de progesterona em novilhas e vacas mestiças. Acta Scientiae Veterinariae, v. 34, supl. 1, p. s348, 2006. Edição dos resumos da 20. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, MG, agosto 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 8. | | MOTA, M. F.; VILELA, D.; SANTOS, G. T.; ELYAS, A. C. W.; LOPES, F. C. F.; VERNEQUE, R. S.; PINTO NETO, A. Desempenho produtivo e composição do leite de vacas da raça holandesa no final da lactação, manejadas em pastagem e suplementadas com diferentes níveis de concentrado. Revista Brasileira de Ciência Veterinária, v. 15, n. 2, p. 82-87, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - C |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | MOTA, M. F.; SANTOS, G. T. dos; VILELA, D.; ELYAS, A. C. W.; LOPES, F. C. F.; VERNEQUE, R. da S.; PINTO NETO, A. Dinâmica da fase sólida e líquida no trato gastrintestinal de vacas leiteiras em pastagem tropical. Revista Brasileira de Saúde e Produção Animal, v. 10, n. 2, p. 501-512, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | PINTO NETO, A.; LUCCA, F. M. de; ALBERTON, J.; MOTA, M. F.; LUCACIN, E.; BORGES, A. M.; ACCO, A.; FONSECA, J. F. da; SILVA FILHO, J. M. da; SILVA, A. V. da; BRANDÃO, F. Z. Avaliação dos efeitos do flunixin meglumine sobre a concentração sérica de progesterona e ciclo estral em novilhas e vacas mestiças. Revista Brasileira de Ciência Veterinária, v. 15, n. 1, p. 10-14, jan./abr. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - C |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 11. | | LUCACIN, E.; PINTO-NETO, A.; MOTA, M. F.; ACCO, A.; FONSECA, J. F. da; ALBERTON, J.; ARAÚJO, E. B.; SBEGHEN, M. J.; GREGIANINI, H. A.; BONINI-JÚNIOR, P.; FONSECA, G. G.; SILVA, A. V. da. Avaliação dos efeitos do flunixin meglumine sobre a taxa de gestação de vacas. In: CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 17., 2007, Curitiba. Resumos...Belo Horizonte: CBRA, 2007. p. 203.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 12. | | MOTA, M. F.; VILELA, D.; SANTOS, G. T. dos; ELYAS, A. C. W.; LOPES, F. C. F.; VERNEQUE, R. da S.; PAIVA, P. C. de A.; PINTO NETO, A. Parâmetros ruminais de vacas leiteiras mantidas em pastagem tropical. Archivos de Zootecnia, v. 59, n. 226, p. 217-224, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | BECHER, B.; PINTO NETO, A.; GREGIANINI, H. G.; JELONSCHEK, J. P.; MOTA, M. F.; GREGIANINI, J. T. F.; CATTELAM, J.; MARTINEZ, A. C.; SOUZA, R. M. de; CARNEIRO JUNIOR, J. M. Performance of zebu donor cows in vitro production of embryos. Brazilian Journal of Development, v. 6, n. 2, p. 7788-7800, feb. 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Acre. |
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| 14. | | PINTO NETO, A.; THOMAZI, S.; SILVA, R. Z.; GREGIANINI, H. A. G.; FARIA, E. F.; MOTA, M. F.; MELO, N. M.; DEMCZUK, E.; BRANDÃO, F. Z.; FONSECA, J. F. Dinâmica ovariana e taxa de gestação em vacas inseminadas artificialmente em tempo fixo sob diferentes metodologias. In: CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 18., 2009, Belo Horizonte. Anais... Belo Horizonte: CBRA, 2009. p. 229. 1 CD-ROM. Título em inglês: Ovarian dynamics and pregnancy rate in cows inseminated artificially fixed in time under different methodologies.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 14 | |
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