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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
03/08/2017 |
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Data da última atualização: |
03/08/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
LEIVAS, J. F.; TEIXEIRA, A. H. de C.; SILVA, G. B. S. da; GARCON, E. A. M. |
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Afiliação: |
JANICE FREITAS LEIVAS, CNPM; ANTONIO HERIBERTO DE C TEIXEIRA, CPATSA; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPM; EDLENE APARECIDA MONTEIRO GARCON, CNPM. |
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Título: |
Obtenção de evapotranspiração e indicadores hídricos em perímetros irrigados usando imagens RapidEye. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... Santos: Inpe, 2017. |
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Páginas: |
p. 4590-4596. |
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Idioma: |
Português |
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Conteúdo: |
The objective in this study was to obtain evapotranspiration (ET) and biophysics parameters at irrigated areas using the SAFER (Simple Algorithm For Evapotranspiration Retrieving) and the Penman-Monteith models without using the thermal band, with the aim of enhancing spatial resolution and therefore detecting more surface details. We collected data from meteorological stations and RapidEye satellite images (5 meters) of Jaíba (North of Minas Gerais) and Petrolina (Pernambuco state), located at in the São Francisco river basin, Brazil, in 2011, 2012, 2013, and 2014. The average daily evapotranspiration rate in Petrolina for 2011 scene was of 0.47±1.14 mm, with a maximum value of 6.96 mm at the irrigated areas. In the 2014 image the evapotranspiration (ET) rate reached values higher than 7.6 mm at the irrigated areas, and average daily values of 0.64±1.43 mm. The atmosphere's higher evaporative demand caused ET to reach values higher than those observed in the 2011 scene, maybe due to the El Niño phenomenon, which reduces the rainfall rates at the study region and causes water scarcity. In 2013, daily average evapotranspiration (ET) of Jaiba was 0.43 ± 0. 96 mm and maximum value was 6.11 mm. In 2014, the average daily ET value was 2.19 ± 2.01mm. The results obtained enabled evaluating evapotranspiration during periods of severe drought with the advantage of not requiring the use of the thermal band, and thus contributing to the planning and management of the use of water resources. MenosThe objective in this study was to obtain evapotranspiration (ET) and biophysics parameters at irrigated areas using the SAFER (Simple Algorithm For Evapotranspiration Retrieving) and the Penman-Monteith models without using the thermal band, with the aim of enhancing spatial resolution and therefore detecting more surface details. We collected data from meteorological stations and RapidEye satellite images (5 meters) of Jaíba (North of Minas Gerais) and Petrolina (Pernambuco state), located at in the São Francisco river basin, Brazil, in 2011, 2012, 2013, and 2014. The average daily evapotranspiration rate in Petrolina for 2011 scene was of 0.47±1.14 mm, with a maximum value of 6.96 mm at the irrigated areas. In the 2014 image the evapotranspiration (ET) rate reached values higher than 7.6 mm at the irrigated areas, and average daily values of 0.64±1.43 mm. The atmosphere's higher evaporative demand caused ET to reach values higher than those observed in the 2011 scene, maybe due to the El Niño phenomenon, which reduces the rainfall rates at the study region and causes water scarcity. In 2013, daily average evapotranspiration (ET) of Jaiba was 0.43 ± 0. 96 mm and maximum value was 6.11 mm. In 2014, the average daily ET value was 2.19 ± 2.01mm. The results obtained enabled evaluating evapotranspiration during periods of severe drought with the advantage of not requiring the use of the thermal band, and thus contributing to the planning and management of the use of water reso... Mostrar Tudo |
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Palavras-Chave: |
Modelo agrometeorológico espectral. |
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Thesagro: |
Sensoriamento Remoto. |
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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/162381/1/4826.pdf
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Marc: |
LEADER 02166nam a2200181 a 4500
001 2073559
005 2017-08-03
008 2017 bl uuuu u00u1 u #d
100 1 $aLEIVAS, J. F.
245 $aObtenção de evapotranspiração e indicadores hídricos em perímetros irrigados usando imagens RapidEye.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... Santos: Inpe$c2017
300 $ap. 4590-4596.
520 $aThe objective in this study was to obtain evapotranspiration (ET) and biophysics parameters at irrigated areas using the SAFER (Simple Algorithm For Evapotranspiration Retrieving) and the Penman-Monteith models without using the thermal band, with the aim of enhancing spatial resolution and therefore detecting more surface details. We collected data from meteorological stations and RapidEye satellite images (5 meters) of Jaíba (North of Minas Gerais) and Petrolina (Pernambuco state), located at in the São Francisco river basin, Brazil, in 2011, 2012, 2013, and 2014. The average daily evapotranspiration rate in Petrolina for 2011 scene was of 0.47±1.14 mm, with a maximum value of 6.96 mm at the irrigated areas. In the 2014 image the evapotranspiration (ET) rate reached values higher than 7.6 mm at the irrigated areas, and average daily values of 0.64±1.43 mm. The atmosphere's higher evaporative demand caused ET to reach values higher than those observed in the 2011 scene, maybe due to the El Niño phenomenon, which reduces the rainfall rates at the study region and causes water scarcity. In 2013, daily average evapotranspiration (ET) of Jaiba was 0.43 ± 0. 96 mm and maximum value was 6.11 mm. In 2014, the average daily ET value was 2.19 ± 2.01mm. The results obtained enabled evaluating evapotranspiration during periods of severe drought with the advantage of not requiring the use of the thermal band, and thus contributing to the planning and management of the use of water resources.
650 $aSensoriamento Remoto
653 $aModelo agrometeorológico espectral
700 1 $aTEIXEIRA, A. H. de C.
700 1 $aSILVA, G. B. S. da
700 1 $aGARCON, E. A. M.
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Registro original: |
Embrapa Territorial (CNPM) |
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Biblioteca |
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Origem |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental. |
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Data corrente: |
17/11/2010 |
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Data da última atualização: |
23/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SAMPAIO, F. G.; BOIJINK, C. de L.; SANTOS, L. R. B. DOS; YOSHIOKA, E. T. O.; KALININ, A. L.; RANTIN, F. T. |
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Afiliação: |
FERNANDA GARCIA SAMPAIO, UFSCAR; CHEILA DE LIMA BOIJINK, CPAA; LAILA ROMAGUEIRA BICHARA DOS SANTOS; ELIANE TIE OBA YOSHIOKA, CPAF-AP; ANA LUCIA KALININ; FRANCISCO TADEU RANTIN. |
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Título: |
The combined effect of cooper and low pH on antioxidant defenses and biochemical parameters in neotropical fish pacu, Piaractus mesopotamicus (Holmberg, 1887). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Ecotoxicology, v. 19, n. 5, p. 963-976, 2010. |
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DOI: |
10.1007/s10646-010-0478-z |
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Idioma: |
Inglês |
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Conteúdo: |
Copper sulfate is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damage. Pacu, Piaractus mesopotamicus, (wt = 43.4 ± 3.35 g) were distributed in experimental tanks (n = 10; 180 l) and exposed for 48 h to control (without copper addition), 0.4Cu (0.4 mg l?1), 0CupH (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factors caused more significant disturbance in the biomarkers than single-factors. MenosCopper sulfate is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damage. Pacu, Piaractus mesopotamicus, (wt = 43.4 ± 3.35 g) were distributed in experimental tanks (n = 10; 180 l) and exposed for 48 h to control (without copper addition), 0.4Cu (0.4 mg l?1), 0CupH (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factor... Mostrar Tudo |
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Thesagro: |
Pacu; Peixe; Poluição; Qualidade da Água. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31578/1/Ecotoxicology2010.pdf
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Marc: |
LEADER 02347naa a2200241 a 4500
001 1867159
005 2021-03-23
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1007/s10646-010-0478-z$2DOI
100 1 $aSAMPAIO, F. G.
245 $aThe combined effect of cooper and low pH on antioxidant defenses and biochemical parameters in neotropical fish pacu, Piaractus mesopotamicus (Holmberg, 1887).$h[electronic resource]
260 $c2010
520 $aCopper sulfate is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damage. Pacu, Piaractus mesopotamicus, (wt = 43.4 ± 3.35 g) were distributed in experimental tanks (n = 10; 180 l) and exposed for 48 h to control (without copper addition), 0.4Cu (0.4 mg l?1), 0CupH (without copper addition, pH = 5.0) and 0.4CupH (0.4 mg l?1, pH = 5.0). In liver and red muscle, the superoxide dismutase (SOD) was responsive to the increases in the aquatic copper. The plasmatic intermediary metabolites and hematological variables in the fish of group 0.4Cu were similar to those of the control group. Conversely, the exposure to 0.4CupH caused an increase in the plasmatic lactate, number of red blood cells (RBC) and hemoglobin (Hb). Plasmatic copper concentration [Cup] increased in group 0.4Cu and 0.4CupH, which is higher in group 0.4CupH, suggests an effect of water pH on the absorbed copper. Exposure to 0.4Cu and 0.4CupH resulted in a reduction in the Na+/K+-ATPase activity and an increase in metallothionein (MT) in the gills. Exposure to 0CupH caused a decrease in glucose and pyruvate concentrations and an increase in RBC, Hb, and the branchial Na+/K+-ATPase activity. These responses suggest that the fish triggered mechanisms to revert the blood acidosis, save energy and increase the oxygen uptake. MT was an effective biomarker, responding to copper in different pHs and dissolved oxygen. Combined-factors caused more significant disturbance in the biomarkers than single-factors.
650 $aPacu
650 $aPeixe
650 $aPoluição
650 $aQualidade da Água
700 1 $aBOIJINK, C. de L.
700 1 $aSANTOS, L. R. B. DOS
700 1 $aYOSHIOKA, E. T. O.
700 1 $aKALININ, A. L.
700 1 $aRANTIN, F. T.
773 $tEcotoxicology$gv. 19, n. 5, p. 963-976, 2010.
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Embrapa Amazônia Ocidental (CPAA) |
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