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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Solos. |
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Data corrente: |
24/01/2011 |
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Data da última atualização: |
13/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FIGUEIREDO, R. de O.; MARKEWITZ, D.; DAVIDSON, E. A.; SCHULER, A. E.; WATRIN, O. dos S.; SILVA, P. de S. |
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Afiliação: |
RICARDO DE OLIVEIRA FIGUEIREDO, CPATU; DANIEL MARKEWITZ, University of Georgia; ERIC A. DAVIDSON, Woods Hole Research Center; AZENETH EUFRAUSINO SCHULER, CNPS; ORLANDO DOS SANTOS WATRIN, CPATU; PATRÍCIO DE SOUZA SILVA, CNPS. |
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Título: |
Land-use effects on the chemical attributes of low-order streams in the eastern Amazon. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Journal of Geophysical Research, v. 115, G04004, Dec. 2010. |
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DOI: |
https://doi.org/10.1029/2009JG001200 |
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Idioma: |
Inglês |
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Conteúdo: |
Deforestation is altering small catchment hydrobiogeochemistry in the Amazon. To evaluate land use change effects on water chemistry and other measures of water quality, five low-order streams were studied in the eastern Amazon from April 2003 to October 2005. It was hypothesized that 1) cation loads would increase downstream as the area of cleared forest increased, particularly during the wet season, 2) increasing forest to pasture conversion would increase total solute loads, and 3) nitrate concentrations, which are high under mature forest, would decline with conversion to pasture, but would increase with increasing row crop agriculture. The first hypothesis was generally not supported, as there was no consistent observed increase in conductivity or cation concentrations from upstream to downstream. However, elevated wet-season measures of conductivity, alkalinity, and turbidity indicated increased wet season surface runoff of these constituents, with seasonal changes largest in the watersheds that had experienced the most deforestation. The second hypothesis was supported when all data were pooled in a mixed-model analysis such that conductivity declined with increasing percent forest or increased with increasing percent pasture; however, similar correlations with cations were not significant. The third hypothesis was supported, with decreasing nitrate concentrations observed as forest cover declined and pasture cover increased from upstream to downstream positions, except where crops were grown near the stream, which was associated with increased stream nitrate. In addition, stream temperature, dissolved oxygen, and pH were negatively correlated with percent forest cover while sodium, chloride, and turbidity also increased with percent crop cover. Turbidity, temperature, pH, and dissolved oxygen appear to be the simplest and most indicative parameters for detecting effects of land-use change on water quality in this region. MenosDeforestation is altering small catchment hydrobiogeochemistry in the Amazon. To evaluate land use change effects on water chemistry and other measures of water quality, five low-order streams were studied in the eastern Amazon from April 2003 to October 2005. It was hypothesized that 1) cation loads would increase downstream as the area of cleared forest increased, particularly during the wet season, 2) increasing forest to pasture conversion would increase total solute loads, and 3) nitrate concentrations, which are high under mature forest, would decline with conversion to pasture, but would increase with increasing row crop agriculture. The first hypothesis was generally not supported, as there was no consistent observed increase in conductivity or cation concentrations from upstream to downstream. However, elevated wet-season measures of conductivity, alkalinity, and turbidity indicated increased wet season surface runoff of these constituents, with seasonal changes largest in the watersheds that had experienced the most deforestation. The second hypothesis was supported when all data were pooled in a mixed-model analysis such that conductivity declined with increasing percent forest or increased with increasing percent pasture; however, similar correlations with cations were not significant. The third hypothesis was supported, with decreasing nitrate concentrations observed as forest cover declined and pasture cover increased from upstream to downstream positions, exce... Mostrar Tudo |
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Palavras-Chave: |
Alteração; Chemical attributes; Eastern Amazon; Hidrobiogeoquímica; Riacho. |
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Thesagro: |
Rio; Uso da Terra. |
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Thesaurus Nal: |
Amazonia; Deforestation; Ecosystems; Nitrogen. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/25839/1/Figueiredo-et-al-2010-JGR.pdf
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Marc: |
LEADER 02889naa a2200325 a 4500
001 1873989
005 2021-09-13
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1029/2009JG001200$2DOI
100 1 $aFIGUEIREDO, R. de O.
245 $aLand-use effects on the chemical attributes of low-order streams in the eastern Amazon.$h[electronic resource]
260 $c2010
520 $aDeforestation is altering small catchment hydrobiogeochemistry in the Amazon. To evaluate land use change effects on water chemistry and other measures of water quality, five low-order streams were studied in the eastern Amazon from April 2003 to October 2005. It was hypothesized that 1) cation loads would increase downstream as the area of cleared forest increased, particularly during the wet season, 2) increasing forest to pasture conversion would increase total solute loads, and 3) nitrate concentrations, which are high under mature forest, would decline with conversion to pasture, but would increase with increasing row crop agriculture. The first hypothesis was generally not supported, as there was no consistent observed increase in conductivity or cation concentrations from upstream to downstream. However, elevated wet-season measures of conductivity, alkalinity, and turbidity indicated increased wet season surface runoff of these constituents, with seasonal changes largest in the watersheds that had experienced the most deforestation. The second hypothesis was supported when all data were pooled in a mixed-model analysis such that conductivity declined with increasing percent forest or increased with increasing percent pasture; however, similar correlations with cations were not significant. The third hypothesis was supported, with decreasing nitrate concentrations observed as forest cover declined and pasture cover increased from upstream to downstream positions, except where crops were grown near the stream, which was associated with increased stream nitrate. In addition, stream temperature, dissolved oxygen, and pH were negatively correlated with percent forest cover while sodium, chloride, and turbidity also increased with percent crop cover. Turbidity, temperature, pH, and dissolved oxygen appear to be the simplest and most indicative parameters for detecting effects of land-use change on water quality in this region.
650 $aAmazonia
650 $aDeforestation
650 $aEcosystems
650 $aNitrogen
650 $aRio
650 $aUso da Terra
653 $aAlteração
653 $aChemical attributes
653 $aEastern Amazon
653 $aHidrobiogeoquímica
653 $aRiacho
700 1 $aMARKEWITZ, D.
700 1 $aDAVIDSON, E. A.
700 1 $aSCHULER, A. E.
700 1 $aWATRIN, O. dos S.
700 1 $aSILVA, P. de S.
773 $tJournal of Geophysical Research$gv. 115, G04004, Dec. 2010.
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Registro original: |
Embrapa Solos (CNPS) |
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| Registros recuperados : 20 | |
| 5. |  | OLIVEIRA, M. E. F.; CORDEIRO, M. F.; FERREIRA, R. M.; SOUZA, S. F.; PIERONI, J. S. P.; RODRIGUES, L. F. de S.; FONSECA, J. F. da; VICENTE, W. R. R. Does supplemental LH changes rate and time to ovulation and embryo yield in Santa Ines ewes treated for superovulation with FSH plus eCG?. Ciência Rural, Santa Maria, v. 42, n. 6, p. 1077-1082, Jun., 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 6. | | OLIVEIRA, M. E. F.; FERREIRA, R. M.; CORDEIRO, M. F.; PIERONI, J. S. P.; SOUZA, S. F.; SANTOS, I. C. C.; RODRIGUES, L. F. S.; FONSECA, J. F. da; VICENTE, W. R. R. Efeito da administração do LH ao final do tratamento superovulatório sobre as taxas de ovulação e produção de embriões em ovelhas Santa Inês. Acta Scientiae Veterinariae Porto Alegre, v. 36, Supl. 2, p. s598, 2008. Edição dos Resumos XXII Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, SP, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 8. | | OLIVEIRA, A. E. M. F. M.; BEZERRA, D. C.; DUARTE, J. L.; CRUZ, R. A. S.; SOUTO, R. N. P.; FERREIRA, R. M. A.; NOGUEIRA, J.; CONCEIÇÃO, E. C. da; LEITÃO, S.; BIZZO, H. R.; GAMA, P. E.; CARVALHO, J. C. T.; FERNANDES, C. P. Essential oil from Pterodon emarginatus as a promising natural raw material for larvicidal nanoemulsions against a tropical disease vector. Sustainable Chemistry and Pharmacy, v. 6, p. 1-9, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 9. | | ARAÚJO, I. F. de; ARAÚJO, P. H. F. de; FERREIRA, R. M. A.; SENA, I. D. S.; LIMA, A. L.; CARVALHO, J. C. T.; FERREIRA, I. M.; SOUTO, R. N. P. Larvicidal effect of hydroethanolic extract from the leaves of Acmella oleracea L. R. K. Jansen in Aedes aegypti and Culex quinquefasciatus. South African Journal of Botany, v. 117, p. 134-140, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amapá. |
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| 11. | | BELO, A. P. D.; ROCHA, L. M. da S.; CORRÊA, J. M. G.; FERREIRA, R. M. dos A.; COSTA-NETO, S. V. da; SOUSA, M. do S. M. de; ADAIME, R.; LEMOS, L. do N. New host plants records of Bactrocera carambolae Drew & Hancock, 1994 and Anastrepha spp. (Diptera: Tephritidae) in Brazil. Entomological Communications, v. 2, ec02036, 2020.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Amapá. |
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| 12. | | OLIVEIRA, M. E. F.; FONSECA, J. da F.; PIERONI, J. S. P.; FERREIRA, R. M.; CORDEIRO, M. F.; SOUZA, S. F.; TEIXEIRA, P. P. M.; VICENTE, W. R. R. Occurrence of subnormal corpus luteum in superovulated Santa Inês sheep using protocols with or without LH administrated at the end of the FSH treatment. Animal Reproduction, v. 6, n. 1, p. 231, Jan./Mar. 2009. Edição dos Abstracts do II International Symposium on animal Biology or Reproduction, São Paulo, nov. 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 13. | | THUNG, M.; FERREIRA, R. M.; MIRANDA, P.; MODA-CIRINO, V.; FERRÃO, M. A. G.; SILVA, L. O. da; DOURADO, V. V.; HEMP, S.; SOUZA, B.; SERPA, J. E. S.; ZIMMERMANN, M. J. O.; SINGH, S. P. Performance in Brazil and Colombia of common bean lines from the second selection cycle. Revista Brasileira de Genética, v. 16, n. 1, p. 115-127, 1993.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 14. | | JESUS, F. L. M.; ALMEIDA, F. B. de; DUARTE, J. L.; OLIVEIRA, A, E. M. F. M.; CRUZ, R. A. S.; SOUTO, R. N. P.; FERREIRA, R. M. A.; KELMANN, R. G.; CARVALHO, J. C. T.; LIRA-GUEDES, A. C.; GUEDES, M.; SOLAN, C.; FERNANDES, C. P. Preparation of a nanoemulsion with Carapa guianensis Aublet (Meliaceae) oil by a low-energy/solvent-free method and evaluation of its preliminary residual larvicidal activity. Evidence-Based Complementary and Alternative Medicine, p. 1-8, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amapá. |
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| 15. | | COSTA, A. C. A.; SOUZA, C. B. de; BASTOS, L. M. P.; FROTA, M. I. da; FERREIRA, R. M.; DIAS, S. da F. Projeto: palmitos de açaí Ltda. 2. ed. Belém, PA: IDESP, 1973. 283 p. II Curso Nacional de Elaboração e Avaliação de Projetos, Belém-PA, 20 de março a 24 de junho de 1972.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 16. | | ALVES, T.; GLEISSLITZ, S. M.; FERREIRA, R. M.; SCHERF, K. A.; TAKEITI, C. Y.; FERREIRA, M. S. L. Proteomic insights into bread-making: fermentation effects on wheat protein profiles. In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS E NUTRIÇÃO, 15., 2023, Campinas. A revolução da ciência de alimentos e nutrição: alimentando o mundo de forma sustentável: caderno [eletrônico] de resumos. Campinas: Galoá, 2023. Pôster 167620; SLACAN.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 18. | | OLIVEIRA, M. E. A. S.; LIMA, L. R. da S.; SANTOS, M. C. B.; SALES, N. F. F. de; FERREIRA, R. M.; CAMERON, L. C.; COLOMBARI FILHO, J. M.; BASSINELLO, P. Z.; CARVALHO, C. W. P. de; FERREIRA, M. S. L.; TAKEITI, C. Y. Role of short germination and milling on physical properties, amino acid and metabolomic profiles of high amylose rice fractions. Food Research International, v. 174, 113556, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos; Embrapa Alimentos e Territórios; Embrapa Arroz e Feijão. |
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| 19. | | OLIVEIRA, M. E. F.; SANTOS, I. C. C.; PIERONI, J. S. P.; FERREIRA, R. M.; CORDEIRO, M. F.; NASCIMENTO, P. M. P.; SOUZA, S. F.; FONSECA, J. F. da; VICENTE, W. R. R. Superovulatory response and embryo production influenced by the addition of LH and effect of the repeatability in Santa Inês sheep. Reproduction, Fertility and Development, v.21, n. 1, p. 171, 2009. Edição dos proceedings da Annual Conference or the International Embryo Transfer Society, San Diego, California, 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 20. | | FERREIRA, R. M.; MALDANER, I. C.; SILVA, D. R. O. da; LOSEKANN, C. R.; CREMONESE, E.; TARTAGLIA, F. de L.; RIGHI, E. Z.; TOMM, G. O.; DALMAGO, G. A. Uso de camalhões para o cultivo de canola em várzeas. In: SIMPÓSIO LATINO AMERICANO DE CANOLA, 1., 2014, Passo Fundo. Anais... Brasília, DF: Embrapa, 2014. 5 p. Poster 7.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| Registros recuperados : 20 | |
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