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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
02/12/2014 |
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Data da última atualização: |
02/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEIVAS, J. F.; TEIXEIRA, A. H. de C.; ANDRADE, R. G.; VICTORIA, D. de C.; BOLFE, E. L.; CRUZ, C. R. |
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Afiliação: |
JANICE FREITAS LEIVAS, CNPM; ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; RICARDO GUIMARAES ANDRADE, CNPM; DANIEL DE CASTRO VICTORIA, CNPM; EDSON LUIS BOLFE, CNPM; CAROLINE R. CRUZ, PUC-CAMPINAS. |
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Título: |
Biophysical parameters in a wheat production region in southern Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Proceedings of SPIE, v. 9239, p. 923924-1 - 923924-8, 2014. |
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ISBN: |
0277-786X |
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DOI: |
10.1117/12.2067477 |
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Idioma: |
Inglês |
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Notas: |
Presented at the 16th Remote Sensing for Agriculture, Ecosystems, and Hydrology. |
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Conteúdo: |
Wheat (Triticum aestivum) is the second most produced cereal in the world, and has major importance in the global agricultural economy. Brazil is a large producer of wheat, especially the Rio Grande do Sul state, located in the south of the country. The purpose of this study was to analyze the estimation of biophysical parameters ? evapotranspiration (ET), biomass (BIO) and water productivity (WP) ? from satellite images of the municipalities with large areas planted with wheat in Rio Grande do Sul (RS). The evapotranspiration rate was obtained using the SAFER Model (Simple Algorithm for Retrieving Evapotranspiration) on MODIS (Moderate Resolution Imaging Spectroradiometer) images taken in the agricultural year 2012. In order to obtain biomass and water productivity rates we applied the Monteith model and the ratio between BIO and ET. In the beginning of the cycle (the planting period) we observed low values for ET, BIO and WP. During the development period, we observed an increase in the values of the parameters and decline at the end of the cycle, for the period of the wheat harvest. The SAFER model proved effective for estimating the biophysical parameters evapotranspiration, biomass production and water productivity in areas planted with wheat in Brazilian Southern. The methodology can be used for monitoring the crops' water conditions and biomass using satellite images, assisting in estimates of productivity and crop yield. The results may assist the understanding of biophysical properties of important agro-ecosystems, like wheat crop, and are important to improve the rational use of water resources. MenosWheat (Triticum aestivum) is the second most produced cereal in the world, and has major importance in the global agricultural economy. Brazil is a large producer of wheat, especially the Rio Grande do Sul state, located in the south of the country. The purpose of this study was to analyze the estimation of biophysical parameters ? evapotranspiration (ET), biomass (BIO) and water productivity (WP) ? from satellite images of the municipalities with large areas planted with wheat in Rio Grande do Sul (RS). The evapotranspiration rate was obtained using the SAFER Model (Simple Algorithm for Retrieving Evapotranspiration) on MODIS (Moderate Resolution Imaging Spectroradiometer) images taken in the agricultural year 2012. In order to obtain biomass and water productivity rates we applied the Monteith model and the ratio between BIO and ET. In the beginning of the cycle (the planting period) we observed low values for ET, BIO and WP. During the development period, we observed an increase in the values of the parameters and decline at the end of the cycle, for the period of the wheat harvest. The SAFER model proved effective for estimating the biophysical parameters evapotranspiration, biomass production and water productivity in areas planted with wheat in Brazilian Southern. The methodology can be used for monitoring the crops' water conditions and biomass using satellite images, assisting in estimates of productivity and crop yield. The results may assist the understanding of bi... Mostrar Tudo |
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Palavras-Chave: |
Water production. |
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Thesaurus Nal: |
Biomass; Evapotranspiration; Wheat. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/112787/1/4203.pdf
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Marc: |
LEADER 02447naa a2200265 a 4500
001 2001291
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008 2014 bl uuuu u00u1 u #d
022 $a0277-786X
024 7 $a10.1117/12.2067477$2DOI
100 1 $aLEIVAS, J. F.
245 $aBiophysical parameters in a wheat production region in southern Brazil.$h[electronic resource]
260 $c2014
500 $aPresented at the 16th Remote Sensing for Agriculture, Ecosystems, and Hydrology.
520 $aWheat (Triticum aestivum) is the second most produced cereal in the world, and has major importance in the global agricultural economy. Brazil is a large producer of wheat, especially the Rio Grande do Sul state, located in the south of the country. The purpose of this study was to analyze the estimation of biophysical parameters ? evapotranspiration (ET), biomass (BIO) and water productivity (WP) ? from satellite images of the municipalities with large areas planted with wheat in Rio Grande do Sul (RS). The evapotranspiration rate was obtained using the SAFER Model (Simple Algorithm for Retrieving Evapotranspiration) on MODIS (Moderate Resolution Imaging Spectroradiometer) images taken in the agricultural year 2012. In order to obtain biomass and water productivity rates we applied the Monteith model and the ratio between BIO and ET. In the beginning of the cycle (the planting period) we observed low values for ET, BIO and WP. During the development period, we observed an increase in the values of the parameters and decline at the end of the cycle, for the period of the wheat harvest. The SAFER model proved effective for estimating the biophysical parameters evapotranspiration, biomass production and water productivity in areas planted with wheat in Brazilian Southern. The methodology can be used for monitoring the crops' water conditions and biomass using satellite images, assisting in estimates of productivity and crop yield. The results may assist the understanding of biophysical properties of important agro-ecosystems, like wheat crop, and are important to improve the rational use of water resources.
650 $aBiomass
650 $aEvapotranspiration
650 $aWheat
653 $aWater production
700 1 $aTEIXEIRA, A. H. de C.
700 1 $aANDRADE, R. G.
700 1 $aVICTORIA, D. de C.
700 1 $aBOLFE, E. L.
700 1 $aCRUZ, C. R.
773 $tProceedings of SPIE$gv. 9239, p. 923924-1 - 923924-8, 2014.
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Embrapa Territorial (CNPM) |
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| 1. |  | LEIVAS, J. F.; TEIXEIRA, A. H. de C.; ANDRADE, R. G.; VICTORIA, D. de C.; BOLFE, E. L.; CRUZ, C. R. Biophysical parameters in a wheat production region in southern Brazil. Proceedings of SPIE, v. 9239, p. 923924-1 - 923924-8, 2014. Presented at the 16th Remote Sensing for Agriculture, Ecosystems, and Hydrology.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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