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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
17/03/2016 |
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Data da última atualização: |
18/03/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GONÇALVES, T. G.; MACIEL, D. A.; ALVES, H. M. R.; VOLPATO, M M. L.; VIEIRA, T. G. C.; DANTAS, M. F. |
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Afiliação: |
THAIS GABRIELA GONÇALVES, UFLA; DANIEL ANDRADE MACIEL, UFLA; HELENA MARIA RAMOS ALVES, SAPC; MARGARETE MARIN LORDELO VOLPATO, EPAMIG; TATIANA GROSSI CHQUILOFF VIEIRA, EPAMIG; MAYARA FONTES DANTAS, EPAMIG. |
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Título: |
Avaliação do nível de água do reservatório de Furnas nos anos de 2013 e 2014, utilizando imagens Landsat-8. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. p. 1502-1507 , 2015 |
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Idioma: |
Português |
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Conteúdo: |
Located in the middle of the Rio Grande in Minas Gerais state, Furnas hydroelectric occupies an area of 1440 km², with an estimated volume of 17,217 km³ used to generate 1216 megawatts of power. Around the lake, other economic activities such as agriculture, pisciculture and tourism are also important. A shortage of rainfall in the region in 2014 heavily impacted these activities, causing also a decrease in the reservoir?s power generation capacity. The aim of this study was to assess the reduction of the volume of water in the reservoir using remote sensing and GIS. Landsat 8 26/04/2013 and 19/08/2014 satellite images were compared. The images were processed by eCognition Developer and Arcgis 10.2. It was observed that, in the 2013 image, the reservoir area was at 1134 km2 of water and 71.51% of its capacity. In the 2014 image, the area decreased to 807,42km2 and 27.55% capacity. This difference showed a reduction of 7,082km³ in volume in 16 months. These results show the applicability of satellite imagery and GIS to estimate reservoir areas over time, assisting various sectors in decision making processes and helping to mitigate the consequences of droughts. |
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Thesagro: |
Sensoriamento remoto. |
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Thesaurus Nal: |
Drought; Geographic information systems; Remote sensing. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141350/1/Avaliacao-do-nivel-de-agua.pdf
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Marc: |
LEADER 01958nam a2200217 a 4500
001 2041257
005 2016-03-18
008 2015 bl uuuu u00u1 u #d
100 1 $aGONÇALVES, T. G.
245 $aAvaliação do nível de água do reservatório de Furnas nos anos de 2013 e 2014, utilizando imagens Landsat-8.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. p. 1502-1507 $c2015
520 $aLocated in the middle of the Rio Grande in Minas Gerais state, Furnas hydroelectric occupies an area of 1440 km², with an estimated volume of 17,217 km³ used to generate 1216 megawatts of power. Around the lake, other economic activities such as agriculture, pisciculture and tourism are also important. A shortage of rainfall in the region in 2014 heavily impacted these activities, causing also a decrease in the reservoir?s power generation capacity. The aim of this study was to assess the reduction of the volume of water in the reservoir using remote sensing and GIS. Landsat 8 26/04/2013 and 19/08/2014 satellite images were compared. The images were processed by eCognition Developer and Arcgis 10.2. It was observed that, in the 2013 image, the reservoir area was at 1134 km2 of water and 71.51% of its capacity. In the 2014 image, the area decreased to 807,42km2 and 27.55% capacity. This difference showed a reduction of 7,082km³ in volume in 16 months. These results show the applicability of satellite imagery and GIS to estimate reservoir areas over time, assisting various sectors in decision making processes and helping to mitigate the consequences of droughts.
650 $aDrought
650 $aGeographic information systems
650 $aRemote sensing
650 $aSensoriamento remoto
700 1 $aMACIEL, D. A.
700 1 $aALVES, H. M. R.
700 1 $aVOLPATO, M M. L.
700 1 $aVIEIRA, T. G. C.
700 1 $aDANTAS, M. F.
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Registro original: |
Embrapa Café (CNPCa) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
31/10/2011 |
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Data da última atualização: |
21/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
NABAIS, C.; LABUTO, G.; GONÇALVES, S.; BUSCARDO, E.; SEMENSATTO, D.; NOGUEIRA, A. R. de A.; FREITAS, H. |
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Afiliação: |
CRISTINA NABAIS, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; GEÓRGIA LABUTO, UNIVERSIDADE FEDERAL DE SÃO PAULO/SÃO PAULO; SUSANA GONÇALVES, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; ERIKA BUSCARDO, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL; DÉCIO SEMENSATTO, UNIVERSIDADE FEDERAL DE SÃO PAULO/SÃO PAULO; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; HELENA FREITAS, FACULDADE DE CIÊNCIAS E TECNOLOGIA, UNIVERSIDADE DE COIMBRA/COIMBRA, PORTUGAL. |
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Título: |
Effect of root age on the allocation of metals, amino acids and sugars in different cell fractions of the perennial grass Paspalum notatum (bahiagrass). |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Plant Physiology and Biochemistry, v. 49, n. 12, p. 1442-1447, dec. 2011. |
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DOI: |
https://doi.org/10.1016/j.plaphy.2011.09.010 |
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Idioma: |
Inglês |
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Conteúdo: |
This work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in the composition of the cell wall components with ageing. To further understand the structural changes of root cells with ageing and its effect on metal allocation, it is important to quantify several components of the cell wall matrix, namely pectins and glycoproteins. MenosThis work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in t... Mostrar Tudo |
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Palavras-Chave: |
Aluminium. |
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Thesaurus NAL: |
copper; glycoproteins; iron; nickel; polysaccharides. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02641naa a2200277 a 4500
001 1904434
005 2022-07-21
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.plaphy.2011.09.010$2DOI
100 1 $aNABAIS, C.
245 $aEffect of root age on the allocation of metals, amino acids and sugars in different cell fractions of the perennial grass Paspalum notatum (bahiagrass).$h[electronic resource]
260 $c2011
520 $aThis work aimed to compare the allocation of Al, Fe, Cu, Ni, amino acids and sugars in different fractions of root cells of Paspalum notatum with 21 and 120 days old grown in quartz sand. In general younger roots showed a higher content of Al, Fe, Cu Ni, amino acids and sugars, compared to older roots. This can be due to a higher metabolic activity of younger roots and/or to structural changes that can occur with cell ageing. Al and Fe were mainly allocated to fractions with pectin, hemicellulose and cellulose, both in younger and older roots. However, older roots also showed a significant fraction of Al allocated to the intracellular fraction. It seems that older roots were less able to prevent the entry of Al in the cytoplasm. The proportion of Cuwas higher in intracellular components, both in younger and older roots, as expected from an essential nutrient. Ni contentwas very low in older roots and in younger roots itwas mainly allocated to the intracellular fraction and to the cell wall polysaccharides fraction. The amino acids were mainly allocated to the cytoplasm and polysaccharide fraction. Although younger roots showed a higher total amount of amino acids compared to older roots, the amino acids profile and allocation, mainly in the cytoplasm polysaccharides, was quite similar. Arabinose, a major component of structural glycoproteins of the primary cell wall matrix, was only detected in younger roots. Thus, it seems that root cells of P. notatum suffered changes in the composition of the cell wall components with ageing. To further understand the structural changes of root cells with ageing and its effect on metal allocation, it is important to quantify several components of the cell wall matrix, namely pectins and glycoproteins.
650 $acopper
650 $aglycoproteins
650 $airon
650 $anickel
650 $apolysaccharides
653 $aAluminium
700 1 $aLABUTO, G.
700 1 $aGONÇALVES, S.
700 1 $aBUSCARDO, E.
700 1 $aSEMENSATTO, D.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aFREITAS, H.
773 $tPlant Physiology and Biochemistry$gv. 49, n. 12, p. 1442-1447, dec. 2011.
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