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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
31/08/2005 |
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Data da última atualização: |
09/02/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
COSTA, J. G. C. da; RAVA, C. A. |
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Afiliação: |
JOAQUIM GERALDO CAPRIO DA COSTA, CNPAF; CARLOS AGUSTIN RAVA SEIJAS, CNPAF. |
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Título: |
Reação de acessos de feijoeiro comum à antracnose, mancha angular e crestamento bacteriano comum . |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 29, p. S63, ago. 2004. Suplemento, ref. 116. Edição de Resumos do XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, ago. 2004. |
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Idioma: |
Português |
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Palavras-Chave: |
Crestamento bacteriano. |
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Thesagro: |
Doença de Planta; Feijão; Mancha Angular; Phaseolus Vulgaris. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/208114/1/fb-2004-p63.pdf
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Marc: |
LEADER 00655nam a2200169 a 4500
001 1208114
005 2023-02-09
008 2004 bl uuuu u00u1 u #d
100 1 $aCOSTA, J. G. C. da
245 $aReação de acessos de feijoeiro comum à antracnose, mancha angular e crestamento bacteriano comum .
260 $aFitopatologia Brasileira, v. 29, p. S63, ago. 2004. Suplemento, ref. 116. Edição de Resumos do XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, ago. 2004.$c2004
650 $aDoença de Planta
650 $aFeijão
650 $aMancha Angular
650 $aPhaseolus Vulgaris
653 $aCrestamento bacteriano
700 1 $aRAVA, C. A.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
16/11/2021 |
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Data da última atualização: |
16/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
NOVAIS, J. J.; LACERDA, M. P. C.; SANO, E. E.; DEMATTÊ, J. A. M.; OLIVEIRA JÚNIOR, M. P. |
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Afiliação: |
JEAN J. NOVAIS; MARILUSA P. C. LACERDA; EDSON EYJI SANO, CPAC; JOSÉ A. M. DEMATTÊ; MANUEL P. OLIVEIRA, JR. |
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Título: |
Digital Soil Mapping Using Multispectral Modeling with Landsat Time Series Cloud Computing Based. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Remote Sensing, v. 13, n. 1181, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Geotechnologies allow natural resources to be surveyed more quickly and cheaply than traditional methods. This paper aimed to produce a digital soil map (DSM) based on Landsat time series data. The study area, located in the eastern part of the Brazilian Federal District (Rio Preto hydrographic basin), comprises a representative basin of the Central Brazil plateau in terms of pedodiversity. A spectral library was produced based on the soil spectroscopy (from the visible to shortwave infrared spectral range) of 42 soil samples from 0?15 cm depth using the Fieldspec Pro equipment in a laboratory. Pearson?s correlation and principal component analysis of the soil attributes revealed that the dataset could be grouped based on the texture content. Hierarchical clustering analysis allowed for the extraction of 13 reference spectra. We interpreted the spectra morphologically and resampled them to the Landsat 5 Thematic Mapper satellite bands. Afterward, we elaborated a synthetic soil/rock image (SySI) and a soil frequency image (number of times the bare soil was captured) from the Landsat time series (1984?2020) in the Google Earth Engine platform. Multiple Endmember Spectral Mixture Analysis (MESMA) was used to model the SySI, using the endmembers as the input and generating a DSM, which was validated by the Kappa index and the confusion matrix. MESMA successfully modeled 9 of the 13 endmembers: Dystric Rhodic Ferralsol (clayic); Dystric Rhodic Ferralsol (very clayic); Dystric Haplic Ferralsol (loam-clayic); Dystric Haplic Ferralsol (clayic); Dystric Petric Plinthosol (clayic); Dystric Petric Plinthosol (very clayic); Dystric Regosol (clayic); Dystric Regosol (very clayic); and Dystric, Haplic Cambisol (clayic). The root mean squared error (RMSE) varied from 0 to 1.3%. The accuracy of DSM achieved a Kappa index of 0.74, describing the methodology?s effectiveness to differentiate the studied soils. MenosAbstract: Geotechnologies allow natural resources to be surveyed more quickly and cheaply than traditional methods. This paper aimed to produce a digital soil map (DSM) based on Landsat time series data. The study area, located in the eastern part of the Brazilian Federal District (Rio Preto hydrographic basin), comprises a representative basin of the Central Brazil plateau in terms of pedodiversity. A spectral library was produced based on the soil spectroscopy (from the visible to shortwave infrared spectral range) of 42 soil samples from 0?15 cm depth using the Fieldspec Pro equipment in a laboratory. Pearson?s correlation and principal component analysis of the soil attributes revealed that the dataset could be grouped based on the texture content. Hierarchical clustering analysis allowed for the extraction of 13 reference spectra. We interpreted the spectra morphologically and resampled them to the Landsat 5 Thematic Mapper satellite bands. Afterward, we elaborated a synthetic soil/rock image (SySI) and a soil frequency image (number of times the bare soil was captured) from the Landsat time series (1984?2020) in the Google Earth Engine platform. Multiple Endmember Spectral Mixture Analysis (MESMA) was used to model the SySI, using the endmembers as the input and generating a DSM, which was validated by the Kappa index and the confusion matrix. MESMA successfully modeled 9 of the 13 endmembers: Dystric Rhodic Ferralsol (clayic); Dystric Rhodic Ferralsol (very clayic); D... Mostrar Tudo |
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Palavras-Chave: |
Espectroscopia; Mapeamento digital do solo. |
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Thesaurus NAL: |
Spectroscopy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227794/1/Sano-livre-Digital-soil-mapping-using.pdf
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Marc: |
LEADER 02555naa a2200205 a 4500
001 2136172
005 2021-11-16
008 2021 bl uuuu u00u1 u #d
100 1 $aNOVAIS, J. J.
245 $aDigital Soil Mapping Using Multispectral Modeling with Landsat Time Series Cloud Computing Based.$h[electronic resource]
260 $c2021
520 $aAbstract: Geotechnologies allow natural resources to be surveyed more quickly and cheaply than traditional methods. This paper aimed to produce a digital soil map (DSM) based on Landsat time series data. The study area, located in the eastern part of the Brazilian Federal District (Rio Preto hydrographic basin), comprises a representative basin of the Central Brazil plateau in terms of pedodiversity. A spectral library was produced based on the soil spectroscopy (from the visible to shortwave infrared spectral range) of 42 soil samples from 0?15 cm depth using the Fieldspec Pro equipment in a laboratory. Pearson?s correlation and principal component analysis of the soil attributes revealed that the dataset could be grouped based on the texture content. Hierarchical clustering analysis allowed for the extraction of 13 reference spectra. We interpreted the spectra morphologically and resampled them to the Landsat 5 Thematic Mapper satellite bands. Afterward, we elaborated a synthetic soil/rock image (SySI) and a soil frequency image (number of times the bare soil was captured) from the Landsat time series (1984?2020) in the Google Earth Engine platform. Multiple Endmember Spectral Mixture Analysis (MESMA) was used to model the SySI, using the endmembers as the input and generating a DSM, which was validated by the Kappa index and the confusion matrix. MESMA successfully modeled 9 of the 13 endmembers: Dystric Rhodic Ferralsol (clayic); Dystric Rhodic Ferralsol (very clayic); Dystric Haplic Ferralsol (loam-clayic); Dystric Haplic Ferralsol (clayic); Dystric Petric Plinthosol (clayic); Dystric Petric Plinthosol (very clayic); Dystric Regosol (clayic); Dystric Regosol (very clayic); and Dystric, Haplic Cambisol (clayic). The root mean squared error (RMSE) varied from 0 to 1.3%. The accuracy of DSM achieved a Kappa index of 0.74, describing the methodology?s effectiveness to differentiate the studied soils.
650 $aSpectroscopy
653 $aEspectroscopia
653 $aMapeamento digital do solo
700 1 $aLACERDA, M. P. C.
700 1 $aSANO, E. E.
700 1 $aDEMATTÊ, J. A. M.
700 1 $aOLIVEIRA JÚNIOR, M. P.
773 $tRemote Sensing$gv. 13, n. 1181, 2021.
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Embrapa Cerrados (CPAC) |
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