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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
02/01/2017 |
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Data da última atualização: |
26/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COAGUILA, D. N.; HERNANDEZ, F. B. T.; TEIXEIRA, A. H. de C.; NEALE, C. M.; FRANCO, A. M.; LEIVAS, J. F. |
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Afiliação: |
Daniel N. Coaguila, UNESP; Fernando B. T. Hernandez, UNESP; ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; Christopher M. Neale, Water for Food Global Institute at the University of Nebraska; Renato A. M. Franco, UNESP; JANICE FREITAS LEIVAS, CNPM. |
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Título: |
Annual variability of water productivity components in the watershedof Cabeceira Comprida stream, Santa Fé do Sul, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Proceedings of SPIE - International Society for Optical Engineering, v. 9998, p. 99981E-1 - 99981E-10, 2016. |
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DOI: |
10.1117/12.2242007 |
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Idioma: |
Inglês |
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Conteúdo: |
The Cabeceira Comprida stream's watershed, located in Santa Fé do Sul, Brazil, is an agroecosystem with great demand of water for the population and agriculture. During the dry season the water demand exceeds the amount generated by the watershed. It is important to know the dynamics of the water above the ground to improve the water resources management. Ten Landsat 8 images were used combined with Northwestern São Paulo State Weather Network data under different thermohydrological conditions of the year 2014 to quantify actual evapotranspiration (ETa), biomass production (BIO) and water productivity (WP) based on ETa. Using the Simple Algorithm for Retrieving evapotranspiration (SAFER) for calculating ETa, the Monteith's radiation model was applied for estimating the BIO and for calculation of WP the ratio of BIO and ETa. The average pixels for ETa, BIO and WP ranged respectively from 0.38 ± 0.35 to 2.05 ± 0.76 mm day-1; 10.15 ± 12.19 to 71.61 ± 35.54 kg ha-1 day-1; 1.89 ± 0.76 to 3.88 ± 0.86 kg m-3. The lower values of ETa (0.38 mm day-1; DOY 220), BIO (10.15 kg ha-1 day-1; DOY 220) and WP (1.89 kg m-3; DOY 204) were obtained in winter, and highest values of ETa (2.05 mm day-1; DOY 364) and BIO (71.64 kg ha-1 day-1; DOY 364) in the summer and WP (3.88 kg m-3; DOY 92) in the autumn. The water productivity components can subsidize the monitoring of the agro-ecosystems, being a useful tool to quantify the annual variability of ETa and BIO. |
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Palavras-Chave: |
Actual evapotranspiration; Evapotranspiração real; Landsat 8; Produção de biomassa; SAFER. |
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Thesaurus Nal: |
biomass production. |
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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/152631/1/PofSPIE-HERIBERTO-Santa-Fe.pdf
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Marc: |
LEADER 02359naa a2200265 a 4500
001 2059756
005 2022-09-26
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1117/12.2242007$2DOI
100 1 $aCOAGUILA, D. N.
245 $aAnnual variability of water productivity components in the watershedof Cabeceira Comprida stream, Santa Fé do Sul, Brazil.$h[electronic resource]
260 $c2016
520 $aThe Cabeceira Comprida stream's watershed, located in Santa Fé do Sul, Brazil, is an agroecosystem with great demand of water for the population and agriculture. During the dry season the water demand exceeds the amount generated by the watershed. It is important to know the dynamics of the water above the ground to improve the water resources management. Ten Landsat 8 images were used combined with Northwestern São Paulo State Weather Network data under different thermohydrological conditions of the year 2014 to quantify actual evapotranspiration (ETa), biomass production (BIO) and water productivity (WP) based on ETa. Using the Simple Algorithm for Retrieving evapotranspiration (SAFER) for calculating ETa, the Monteith's radiation model was applied for estimating the BIO and for calculation of WP the ratio of BIO and ETa. The average pixels for ETa, BIO and WP ranged respectively from 0.38 ± 0.35 to 2.05 ± 0.76 mm day-1; 10.15 ± 12.19 to 71.61 ± 35.54 kg ha-1 day-1; 1.89 ± 0.76 to 3.88 ± 0.86 kg m-3. The lower values of ETa (0.38 mm day-1; DOY 220), BIO (10.15 kg ha-1 day-1; DOY 220) and WP (1.89 kg m-3; DOY 204) were obtained in winter, and highest values of ETa (2.05 mm day-1; DOY 364) and BIO (71.64 kg ha-1 day-1; DOY 364) in the summer and WP (3.88 kg m-3; DOY 92) in the autumn. The water productivity components can subsidize the monitoring of the agro-ecosystems, being a useful tool to quantify the annual variability of ETa and BIO.
650 $abiomass production
653 $aActual evapotranspiration
653 $aEvapotranspiração real
653 $aLandsat 8
653 $aProdução de biomassa
653 $aSAFER
700 1 $aHERNANDEZ, F. B. T.
700 1 $aTEIXEIRA, A. H. de C.
700 1 $aNEALE, C. M.
700 1 $aFRANCO, A. M.
700 1 $aLEIVAS, J. F.
773 $tProceedings of SPIE - International Society for Optical Engineering$gv. 9998, p. 99981E-1 - 99981E-10, 2016.
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Embrapa Territorial (CNPM) |
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| 8. |  | TEIXEIRA, A. H. de C.; SCHERER-WARREN, M.; HERNANDEZ, F. B. T.; ANDRADE, R. G. Balanço de energia em larga escala no município de Juazeiro - BA, Brasil. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 18., 2013, Belém, PA. Belém, PA: Sociedade Brasileira de Agrometeorologia, 2013. 6 p.| Tipo: Artigo em Anais de Congresso |
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