Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1117/12.2242007 http://hdl.handle.net/11449/169418 |
Resumo: | 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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Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, BrazilActual EvapotranspirationBiomass ProductionLandsat 8SAFERThe 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.UNESP-Sao Paulo State University, P.O. Box 34UNSA - National University of Saint Augustine Dept. of BiologyEmbrapa Satellite MonitoringWater for Food Global Institute at the University of NebraskaUNESP-Sao Paulo State University, P.O. Box 34Universidade Estadual Paulista (Unesp)Dept. of BiologyEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Water for Food Global Institute at the University of NebraskaCoaguila, Daniel N. [UNESP]Hernandez, Fernando B. T. [UNESP]De CTeixeira, Antônio H.Neale, Christopher M.Franco, Renato A. M. [UNESP]Leivas, Janice F.2018-12-11T16:45:48Z2018-12-11T16:45:48Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1117/12.2242007Proceedings of SPIE - The International Society for Optical Engineering, v. 9998.1996-756X0277-786Xhttp://hdl.handle.net/11449/16941810.1117/12.22420072-s2.0-850110927102-s2.0-85011092710.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of SPIE - The International Society for Optical Engineeringinfo:eu-repo/semantics/openAccess2024-01-25T06:30:11Zoai:repositorio.unesp.br:11449/169418Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:54:40.717195Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
title |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
spellingShingle |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil Coaguila, Daniel N. [UNESP] Actual Evapotranspiration Biomass Production Landsat 8 SAFER |
title_short |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
title_full |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
title_fullStr |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
title_full_unstemmed |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
title_sort |
Annual variability of water productivity components in the watershed of Cabeceira Comprida stream, Santa Fé do Sul, Brazil |
author |
Coaguila, Daniel N. [UNESP] |
author_facet |
Coaguila, Daniel N. [UNESP] Hernandez, Fernando B. T. [UNESP] De CTeixeira, Antônio H. Neale, Christopher M. Franco, Renato A. M. [UNESP] Leivas, Janice F. |
author_role |
author |
author2 |
Hernandez, Fernando B. T. [UNESP] De CTeixeira, Antônio H. Neale, Christopher M. Franco, Renato A. M. [UNESP] Leivas, Janice F. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Dept. of Biology Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Water for Food Global Institute at the University of Nebraska |
dc.contributor.author.fl_str_mv |
Coaguila, Daniel N. [UNESP] Hernandez, Fernando B. T. [UNESP] De CTeixeira, Antônio H. Neale, Christopher M. Franco, Renato A. M. [UNESP] Leivas, Janice F. |
dc.subject.por.fl_str_mv |
Actual Evapotranspiration Biomass Production Landsat 8 SAFER |
topic |
Actual Evapotranspiration Biomass Production Landsat 8 SAFER |
description |
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. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-12-11T16:45:48Z 2018-12-11T16:45:48Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1117/12.2242007 Proceedings of SPIE - The International Society for Optical Engineering, v. 9998. 1996-756X 0277-786X http://hdl.handle.net/11449/169418 10.1117/12.2242007 2-s2.0-85011092710 2-s2.0-85011092710.pdf |
url |
http://dx.doi.org/10.1117/12.2242007 http://hdl.handle.net/11449/169418 |
identifier_str_mv |
Proceedings of SPIE - The International Society for Optical Engineering, v. 9998. 1996-756X 0277-786X 10.1117/12.2242007 2-s2.0-85011092710 2-s2.0-85011092710.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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Proceedings of SPIE - The International Society for Optical Engineering |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
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Universidade Estadual Paulista (UNESP) |
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UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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