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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/10/2017 |
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Data da última atualização: |
08/02/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FIGUEIREDO, R. de O.; PEREIRA, A. S.; COSTA, C. F. G.; TORRESAN, F. E.; LEIVAS, J. F.; FILIZOLA, H. F.; SONODA, K. C.; REIS, L. C.; SOUZA, M. D. de; GOMES, M. A. F.; ZUCCARI, M. L.; SILVA, M. S. G. M. e; PICCOLO, M. C.; TANK, M.; CRUZ, P. P. N.; PAMPLIN, P. A. Z.; CAMARGO, P. B. de; BOEIRA, R. C.; BARIZON, R. R. M.; PEREIRA, S. E. M.; PAZIANOTTO, R. A. A.; GREEN, T. R.; FERRACINI, V. L. |
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Afiliação: |
RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA; ANDERSON SOARES PEREIRA, CNPMA; C. F. G. COSTA; FABIO ENRIQUE TORRESAN, CNPM; JANICE FREITAS LEIVAS, CNPM; HELOISA FERREIRA FILIZOLA, CNPMA; KATHIA CRISTHINA SONODA, CNPMA; L. C. REIS; MANOEL DORNELAS DE SOUZA, CNPMA; MARCO ANTONIO FERREIRA GOMES, CNPMA; MARIA LUCIA ZUCCARI, CNPMA; MARIANA SILVEIRA GUERRA MOURA E SIL, CNPMA; M. C. PICCOLO; M. TANK; P. P. N. CRUZ; P. A. Z. PAMPLIN; P. B. de CAMARGO; RITA CARLA BOEIRA, CNPMA; ROBSON ROLLAND MONTICELLI BARIZON, CNPMA; SANDRO EDUARDO MARSCHHAUSEN PEREIRA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; T. R. GREEN; VERA LUCIA FERRACINI, CNPMA. |
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Título: |
Land use effects on the ecohydrology in headwater areas of the Jaguari river basin. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: INTERNACIONAL CONFERENCE ON ECOHYDROLOGY FOR SECURITY OF AQUATIC ECOSYSTEMS AND SOCIETIES, 2017, Campos dos Goytacazes. Book of abstracts... Campos dos Goytacazes: UENF, 2017. |
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Idioma: |
Português |
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Conteúdo: |
The headwaters of the Jaguari river basin are strategically important to the water resources in the largest reservoir system of the São Paulo state, called ?Cantareira?, which has recently suffered the largest water crisis in its history. Investigation at small watershed scales is a valuable tool to understand land-water interactions and their associated hvdrological processes. Our research approach included evaluations of streamwater uality and quantity, aquatic biota, overland flow, solls, land use, and land management As part of the region is under a conservation program of payment for environmental services (PES),we also examine the efficiency of this public policy. In addition, our study could help guide the agricultural management of rural properties. We detected that water quality drastically decreased downstream in the main channels of the basin and that the reforestation has improved some water quality parameters over time. Moreover, using macroinvertebrates as bioindicators we observed a trend of stream aquatic biota recovery at a catchment under the PES program comparing with a quasi-pristine stream and another stream under impacts from careless agriculture practices. Besides this, some preliminary results demonstrate aneed to regulate the use of pesticides at some agricultural areas; also considering the potential of sediment and water transfer from the steep slopes to the stream, improved management for farm soil and water conservation is needed urgently in this partof the basin. Such management together with PESprograms can help to maintain the sustainability of the water resources of the ?Cantareira? under increased rainfall variability. MenosThe headwaters of the Jaguari river basin are strategically important to the water resources in the largest reservoir system of the São Paulo state, called ?Cantareira?, which has recently suffered the largest water crisis in its history. Investigation at small watershed scales is a valuable tool to understand land-water interactions and their associated hvdrological processes. Our research approach included evaluations of streamwater uality and quantity, aquatic biota, overland flow, solls, land use, and land management As part of the region is under a conservation program of payment for environmental services (PES),we also examine the efficiency of this public policy. In addition, our study could help guide the agricultural management of rural properties. We detected that water quality drastically decreased downstream in the main channels of the basin and that the reforestation has improved some water quality parameters over time. Moreover, using macroinvertebrates as bioindicators we observed a trend of stream aquatic biota recovery at a catchment under the PES program comparing with a quasi-pristine stream and another stream under impacts from careless agriculture practices. Besides this, some preliminary results demonstrate aneed to regulate the use of pesticides at some agricultural areas; also considering the potential of sediment and water transfer from the steep slopes to the stream, improved management for farm soil and water conservation is needed urgently in this... Mostrar Tudo |
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Palavras-Chave: |
Agricultural watershed; Hydrobiogeochemistry; Water crisis. |
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Thesaurus Nal: |
ecosystem services; reforestation; water conservation. |
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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/165511/1/RA-FigueiredoRO-et-al-IntlConferenceOnEcohidrology...-2017-LandUse...-PA....pdf
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Marc: |
LEADER 03079nam a2200445 a 4500
001 2078102
005 2018-02-08
008 2017 bl uuuu u00u1 u #d
100 1 $aFIGUEIREDO, R. de O.
245 $aLand use effects on the ecohydrology in headwater areas of the Jaguari river basin.$h[electronic resource]
260 $aIn: INTERNACIONAL CONFERENCE ON ECOHYDROLOGY FOR SECURITY OF AQUATIC ECOSYSTEMS AND SOCIETIES, 2017, Campos dos Goytacazes. Book of abstracts... Campos dos Goytacazes: UENF$c2017
520 $aThe headwaters of the Jaguari river basin are strategically important to the water resources in the largest reservoir system of the São Paulo state, called ?Cantareira?, which has recently suffered the largest water crisis in its history. Investigation at small watershed scales is a valuable tool to understand land-water interactions and their associated hvdrological processes. Our research approach included evaluations of streamwater uality and quantity, aquatic biota, overland flow, solls, land use, and land management As part of the region is under a conservation program of payment for environmental services (PES),we also examine the efficiency of this public policy. In addition, our study could help guide the agricultural management of rural properties. We detected that water quality drastically decreased downstream in the main channels of the basin and that the reforestation has improved some water quality parameters over time. Moreover, using macroinvertebrates as bioindicators we observed a trend of stream aquatic biota recovery at a catchment under the PES program comparing with a quasi-pristine stream and another stream under impacts from careless agriculture practices. Besides this, some preliminary results demonstrate aneed to regulate the use of pesticides at some agricultural areas; also considering the potential of sediment and water transfer from the steep slopes to the stream, improved management for farm soil and water conservation is needed urgently in this partof the basin. Such management together with PESprograms can help to maintain the sustainability of the water resources of the ?Cantareira? under increased rainfall variability.
650 $aecosystem services
650 $areforestation
650 $awater conservation
653 $aAgricultural watershed
653 $aHydrobiogeochemistry
653 $aWater crisis
700 1 $aPEREIRA, A. S.
700 1 $aCOSTA, C. F. G.
700 1 $aTORRESAN, F. E.
700 1 $aLEIVAS, J. F.
700 1 $aFILIZOLA, H. F.
700 1 $aSONODA, K. C.
700 1 $aREIS, L. C.
700 1 $aSOUZA, M. D. de
700 1 $aGOMES, M. A. F.
700 1 $aZUCCARI, M. L.
700 1 $aSILVA, M. S. G. M. e
700 1 $aPICCOLO, M. C.
700 1 $aTANK, M.
700 1 $aCRUZ, P. P. N.
700 1 $aPAMPLIN, P. A. Z.
700 1 $aCAMARGO, P. B. de
700 1 $aBOEIRA, R. C.
700 1 $aBARIZON, R. R. M.
700 1 $aPEREIRA, S. E. M.
700 1 $aPAZIANOTTO, R. A. A.
700 1 $aGREEN, T. R.
700 1 $aFERRACINI, V. L.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Arroz e Feijão. |
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Data corrente: |
22/11/2010 |
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Data da última atualização: |
06/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
FAGERIA, N. K.; SANTOS, A. B. dos; MOREIRA, A.; MORAES, M. F. de. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; ADONIS MOREIRA, CPAA; M. F. DE MORAES, ESALQ. |
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Título: |
Potassium soil test calibration for lowland rice on an Inceptisol. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 41, n. 21, p. 2595-2601, 2010. |
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DOI: |
https://doi.org/10.1080/00103624.2010.514377 |
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Idioma: |
Inglês |
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Conteúdo: |
Potassium (K) plays an important role in many physiological and biochemical processes in plants and its adequate use is an important issue for sustainable economic crop production. Soil test?based K fertilizer recommendations are very limited for lowland rice (Oryza sativa L.) grown on Inceptisols. The objective of this study was to calibrate K soil testing for the response of lowland rice (cv. Ipagri 109) to added K. A field experiment was conducted in the farmers? field in the municipality of Lagoa da Confusão, State of Tocantins, central Brazil. The K rates used were 0, 125, 250, 375, 500, and 625 kg K ha -1 applied as broadcast and incorporated during sowing of the first rice crop. Rice responded significantly to K fertilization during 2 years of experimentation. Maximum grain yield of about 6,000 kg ha-1 was obtained with 57 mg K kg -1 soil in the first year and with 30 mg K kg?1 in the second year. This indicated that at low levels of K in the soil, nonexchangeable K was available for plant growth. Potassium use efficiency designated as agronomic efficiency (kg grain produced/kg K applied) decreased significantly in a quadratic fashion with increasing K level in the soil. Agronomic efficiency had a significantly linear association with grain yield. Hence, improving agronomic efficiency with management practices can improve rice yield. |
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Palavras-Chave: |
Inceptisol; Produção de grão. |
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Thesagro: |
Análise do solo; Arroz; Oryza sativa; Potássio. |
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Thesaurus NAL: |
Grain yield. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02123naa a2200253 a 4500
001 1867588
005 2022-06-06
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00103624.2010.514377$2DOI
100 1 $aFAGERIA, N. K.
245 $aPotassium soil test calibration for lowland rice on an Inceptisol.$h[electronic resource]
260 $c2010
520 $aPotassium (K) plays an important role in many physiological and biochemical processes in plants and its adequate use is an important issue for sustainable economic crop production. Soil test?based K fertilizer recommendations are very limited for lowland rice (Oryza sativa L.) grown on Inceptisols. The objective of this study was to calibrate K soil testing for the response of lowland rice (cv. Ipagri 109) to added K. A field experiment was conducted in the farmers? field in the municipality of Lagoa da Confusão, State of Tocantins, central Brazil. The K rates used were 0, 125, 250, 375, 500, and 625 kg K ha -1 applied as broadcast and incorporated during sowing of the first rice crop. Rice responded significantly to K fertilization during 2 years of experimentation. Maximum grain yield of about 6,000 kg ha-1 was obtained with 57 mg K kg -1 soil in the first year and with 30 mg K kg?1 in the second year. This indicated that at low levels of K in the soil, nonexchangeable K was available for plant growth. Potassium use efficiency designated as agronomic efficiency (kg grain produced/kg K applied) decreased significantly in a quadratic fashion with increasing K level in the soil. Agronomic efficiency had a significantly linear association with grain yield. Hence, improving agronomic efficiency with management practices can improve rice yield.
650 $aGrain yield
650 $aAnálise do solo
650 $aArroz
650 $aOryza sativa
650 $aPotássio
653 $aInceptisol
653 $aProdução de grão
700 1 $aSANTOS, A. B. dos
700 1 $aMOREIRA, A.
700 1 $aMORAES, M. F. de
773 $tCommunications in Soil Science and Plant Analysis$gv. 41, n. 21, p. 2595-2601, 2010.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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