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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
30/11/2015 |
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Data da última atualização: |
17/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TEIXEIRA, A. H. de C.; LEIVAS, J. F.; ANDRADE, R. G.; HERNANDEZ, F. B. T. |
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Afiliação: |
ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; JANICE FREITAS LEIVAS, CNPM; RICARDO GUIMARAES ANDRADE, CNPM; FERNANDO BRAZ TANGERINO HERNANDEZ, UNESP. |
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Título: |
Water productivity assessments with Landsat 8 images in the Nilo Coelho irrigation scheme. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Irriga, Botucatu, v. 1, n. 2, edição especial, p. 1-10, 2015. |
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ISBN: |
1808-8546 |
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Idioma: |
Inglês |
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Conteúdo: |
The Nilo Coelho (NC) irrigation scheme, located in the Brazilian semi-arid region, is an important irrigated agricultural area. Land use change effects on actual evapotranspiration (ET), biomass production (BIO) and water productivity (WP) were quantified with Landsat 8 images and weather data in this scheme covering different thermohydrological conditions. The SAFER algorithm was used for ET acquirements while the Monteith?s radiation model was applied to retrieve BIO. For classifying irrigated crops and natural vegetation, the SUREAL model was used with a satellite image representing the driest period of the year. The average values for ET, BIO and WP in irrigated crops, ranged, respectively, from 1.6 ± 1.9 to 4.2 ± 1.9 mm day-1; 59 ± 86 to 146 ± 91 kg ha-1 day-1; and 2.0 ± 1.5 to 3.0 ± 1.2 kg m-3. The corresponding ranges for natural vegetation (?Caatinga?) were from 1.2 ± 1.8 to 2.6 ± 1.8 mm day-1; 43 ± 78 to 76 ± 78 kg ha-1 day-1; and 1.6 ± 1.4 to 2.7 ± 1.1 kg m-3. The incremental values, which represent the effects of the replacement of natural vegetation by irrigated crops, were 40, 54 e 23%, for ET, BIO e WP, respectively. |
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Palavras-Chave: |
Produção de biomassa. |
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Thesagro: |
Evapotranspiração. |
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Thesaurus Nal: |
Biomass production; Evapotranspiration; Land use change. |
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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/134304/1/4629.pdf
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Marc: |
LEADER 01868naa a2200229 a 4500
001 2029988
005 2016-03-17
008 2015 bl uuuu u00u1 u #d
022 $a1808-8546
100 1 $aTEIXEIRA, A. H. de C.
245 $aWater productivity assessments with Landsat 8 images in the Nilo Coelho irrigation scheme.$h[electronic resource]
260 $c2015
520 $aThe Nilo Coelho (NC) irrigation scheme, located in the Brazilian semi-arid region, is an important irrigated agricultural area. Land use change effects on actual evapotranspiration (ET), biomass production (BIO) and water productivity (WP) were quantified with Landsat 8 images and weather data in this scheme covering different thermohydrological conditions. The SAFER algorithm was used for ET acquirements while the Monteith?s radiation model was applied to retrieve BIO. For classifying irrigated crops and natural vegetation, the SUREAL model was used with a satellite image representing the driest period of the year. The average values for ET, BIO and WP in irrigated crops, ranged, respectively, from 1.6 ± 1.9 to 4.2 ± 1.9 mm day-1; 59 ± 86 to 146 ± 91 kg ha-1 day-1; and 2.0 ± 1.5 to 3.0 ± 1.2 kg m-3. The corresponding ranges for natural vegetation (?Caatinga?) were from 1.2 ± 1.8 to 2.6 ± 1.8 mm day-1; 43 ± 78 to 76 ± 78 kg ha-1 day-1; and 1.6 ± 1.4 to 2.7 ± 1.1 kg m-3. The incremental values, which represent the effects of the replacement of natural vegetation by irrigated crops, were 40, 54 e 23%, for ET, BIO e WP, respectively.
650 $aBiomass production
650 $aEvapotranspiration
650 $aLand use change
650 $aEvapotranspiração
653 $aProdução de biomassa
700 1 $aLEIVAS, J. F.
700 1 $aANDRADE, R. G.
700 1 $aHERNANDEZ, F. B. T.
773 $tIrriga, Botucatu$gv. 1, n. 2, edição especial, p. 1-10, 2015.
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Embrapa Territorial (CNPM) |
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| 1. |  | TEIXEIRA, A. H. de C.; LEIVAS, J. F.; ANDRADE, R. G.; HERNANDEZ, F. B. T. Water productivity assessments with Landsat 8 images in the Nilo Coelho irrigation scheme. Irriga, Botucatu, v. 1, n. 2, edição especial, p. 1-10, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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