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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/03/2020 |
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Data da última atualização: |
25/03/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MONTIBELLER, B.; SANCHES, I. D.; LUIZ, A. J. B.; GONÇALVES, F.; AGUIAR, D. A. de. |
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Afiliação: |
BRUNO MONTIBELLER, University of Tartu; IEDA DEL'ARCO SANCHES, INPE; ALFREDO JOSE BARRETO LUIZ, CNPMA; FABIO GONÇALVES, Canopy Remote Sensing Solutions; DANIEL ALVES DE AGUIAR, Agrosatélite Geotecnologia Aplicada. |
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Título: |
Spectral-temporal profile analysis of maize, soybean and sugarcane based on OLI/Landsat-8 data. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Brazilian Journal of Agriculture, Piracicaba, v. 94, n. 3, p. 242-258, 2019. |
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ISSN: |
2318-2407 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Remote sensing (RS) technology is a viable complementary alternative to current agriculture surveying methods. RS data spectral information is the main variable used for several purposes, such as crop type identification. However, different management practices (MP) adopted in crop cultivation may alter its spectral characteristics. The objective of this work is to analyze the spectral-temporal profile (STP) variation of soybean, maize and sugarcane cultivated under different MP. We used time series of the six spectral bands of the OLI/Landsat-8 sensor and of two vegetation indexes (VI) to investigate the intraspecific variation (same crop specie) and the interspecific variation (different crop species). We applied hierarchical cluster analyses to determine the crop´s STP variation. The bands results were more efficient than the VI. This shows that despite the widely use of VI, better results are retrieved when using the bands STP, which also allows differentiating and analyzing crops cultivated under different MP. k-- Resumo: Dados de sensoriamento remoto são uma alternativa complementar aos métodos atuais de levantamento agrícola. A informação espectral dos dados de sensoriamento remoto é a principal variável utilizada para diversos propósitos como, por exemplo, a identificação do tipo de cultura. Porém, diferentes métodos de manejo (MM) adotados durante o cultivo podem alterar as características espectrais das culturas. Assim, o objetivo deste trabalho é analisar a variação do perfil espectro-temporal (PET) da soja, do milho e da cana-de-açúcar cultivadas com diferentes MM. Séries temporais de seis bandas espectrais do sensor OLI/Landsat-8 e dois índices de vegetação (IV) foram utilizados para analisar as variações intraespecíficas (mesma cultura) e interespecíficas (diferentes culturas). Para determinar as variações entre os PET das culturas, foi utilizado análises hierárquicas de clusters. Os resultados das análises baseadas nas bandas foram mais eficientes dos que as baseadas nos IV, apesar do amplo uso destes últimos. MenosAbstract: Remote sensing (RS) technology is a viable complementary alternative to current agriculture surveying methods. RS data spectral information is the main variable used for several purposes, such as crop type identification. However, different management practices (MP) adopted in crop cultivation may alter its spectral characteristics. The objective of this work is to analyze the spectral-temporal profile (STP) variation of soybean, maize and sugarcane cultivated under different MP. We used time series of the six spectral bands of the OLI/Landsat-8 sensor and of two vegetation indexes (VI) to investigate the intraspecific variation (same crop specie) and the interspecific variation (different crop species). We applied hierarchical cluster analyses to determine the crop´s STP variation. The bands results were more efficient than the VI. This shows that despite the widely use of VI, better results are retrieved when using the bands STP, which also allows differentiating and analyzing crops cultivated under different MP. k-- Resumo: Dados de sensoriamento remoto são uma alternativa complementar aos métodos atuais de levantamento agrícola. A informação espectral dos dados de sensoriamento remoto é a principal variável utilizada para diversos propósitos como, por exemplo, a identificação do tipo de cultura. Porém, diferentes métodos de manejo (MM) adotados durante o cultivo podem alterar as características espectrais das culturas. Assim, o objetivo deste trabalho é analisa... Mostrar Tudo |
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Palavras-Chave: |
Agricultural dynamics; Análise de clusters; Dinâmica agrícola; Índices de vegetação; Variação interespecífica; Variação intraespecífica. |
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Thesagro: |
Cana de Açúcar; Levantamento; Milho; Sensoriamento Remoto; Soja. |
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Thesaurus Nal: |
Cluster analysis; Interspecific variation; Intraspecific variation; Remote sensing; Vegetation index. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212009/1/Luiz-spectral-temporal-2019.pdf
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Marc: |
LEADER 03233naa a2200373 a 4500
001 2121366
005 2020-03-25
008 2019 bl uuuu u00u1 u #d
022 $a2318-2407
100 1 $aMONTIBELLER, B.
245 $aSpectral-temporal profile analysis of maize, soybean and sugarcane based on OLI/Landsat-8 data.$h[electronic resource]
260 $c2019
520 $aAbstract: Remote sensing (RS) technology is a viable complementary alternative to current agriculture surveying methods. RS data spectral information is the main variable used for several purposes, such as crop type identification. However, different management practices (MP) adopted in crop cultivation may alter its spectral characteristics. The objective of this work is to analyze the spectral-temporal profile (STP) variation of soybean, maize and sugarcane cultivated under different MP. We used time series of the six spectral bands of the OLI/Landsat-8 sensor and of two vegetation indexes (VI) to investigate the intraspecific variation (same crop specie) and the interspecific variation (different crop species). We applied hierarchical cluster analyses to determine the crop´s STP variation. The bands results were more efficient than the VI. This shows that despite the widely use of VI, better results are retrieved when using the bands STP, which also allows differentiating and analyzing crops cultivated under different MP. k-- Resumo: Dados de sensoriamento remoto são uma alternativa complementar aos métodos atuais de levantamento agrícola. A informação espectral dos dados de sensoriamento remoto é a principal variável utilizada para diversos propósitos como, por exemplo, a identificação do tipo de cultura. Porém, diferentes métodos de manejo (MM) adotados durante o cultivo podem alterar as características espectrais das culturas. Assim, o objetivo deste trabalho é analisar a variação do perfil espectro-temporal (PET) da soja, do milho e da cana-de-açúcar cultivadas com diferentes MM. Séries temporais de seis bandas espectrais do sensor OLI/Landsat-8 e dois índices de vegetação (IV) foram utilizados para analisar as variações intraespecíficas (mesma cultura) e interespecíficas (diferentes culturas). Para determinar as variações entre os PET das culturas, foi utilizado análises hierárquicas de clusters. Os resultados das análises baseadas nas bandas foram mais eficientes dos que as baseadas nos IV, apesar do amplo uso destes últimos.
650 $aCluster analysis
650 $aInterspecific variation
650 $aIntraspecific variation
650 $aRemote sensing
650 $aVegetation index
650 $aCana de Açúcar
650 $aLevantamento
650 $aMilho
650 $aSensoriamento Remoto
650 $aSoja
653 $aAgricultural dynamics
653 $aAnálise de clusters
653 $aDinâmica agrícola
653 $aÍndices de vegetação
653 $aVariação interespecífica
653 $aVariação intraespecífica
700 1 $aSANCHES, I. D.
700 1 $aLUIZ, A. J. B.
700 1 $aGONÇALVES, F.
700 1 $aAGUIAR, D. A. de
773 $tBrazilian Journal of Agriculture, Piracicaba$gv. 94, n. 3, p. 242-258, 2019.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
08/10/2012 |
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Data da última atualização: |
03/11/2021 |
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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: |
RACHID, C. T. C. C.; PICCOLO, M. C.; LEITE, D. C. A.; BALIEIRO, F. de C.; COUTINHO, H. L. da C.; ELSAS, J. D. van; PEIXOTO, R. S.; ROSADO, A. S. |
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Afiliação: |
CAIO T. C. C. RACHID, CENA/UFRJ; MARISA C. PICCOLO, USP; DEBORAH CATHARINE A. LEITE; FABIANO DE CARVALHO BALIEIRO, CNPS; HEITOR LUIZ DA COSTA COUTINHO, CNPS; JAN DIRK VAN ELSAS; RAQUEL S. PEIXOTO, UFRJ; ALEXANDRE S. ROSADO, UFRJ. |
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Título: |
Physical-chemical and microbiological changes in Cerrado Soil under differing sugarcane harvest management systems. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
BMC Microbiology, v. 12, 170, 2012. |
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DOI: |
https://doi.org/10.1186/1471-2180-12-170 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Background: Sugarcane cultivation plays an important role in Brazilian economy, and it is expanding fast, mainly due to the increasing demand for ethanol production. In order to understand the impact of sugarcane cultivation and management, we studied sugarcane under different management regimes (pre-harvest burn and mechanical, unburnt harvest, or green cane), next to a control treatment with native vegetation. The soil bacterial community structure (including an evaluation of the diversity of the ammonia oxidizing (amoA) and denitrifying (nirK) genes), greenhouse gas flow and several soil physicochemical properties were evaluated. Results: Our results indicate that sugarcane cultivation in this region resulted in changes in several soil properties. Moreover, such changes are reflected in the soil microbiota. No significant influence of soil management on greenhouse gas fluxes was found. However, we did find a relationship between the biological changes and the dynamics of soil nutrients. In particular, the burnt cane and green cane treatments had distinct modifications. There were significant differences in the structure of the total bacterial, the ammonia oxidizing and the denitrifying bacterial communities, being that these groups responded differently to the changes in the soil. A combination of physical and chemical factors was correlated to the changes in the structures of the total bacterial communities of the soil. The changes in the structures of the functional groups follow a different pattern than the physicochemical variables. The latter might indicate a strong influence of interactions among different bacterial groups in the N cycle, emphasizing the importance of biological factors in the structuring of these communities. Conclusion: Sugarcane land use significantly impacted the structure of total selected soil bacterial communities and ammonia oxidizing and denitrifier gene diversities in a Cerrado field site in Central Brazil. A high impact of land use was observed in soil under the common burnt cane management. The green cane soil also presented different profiles compared to the control soil, but to at a lesser degree. MenosAbstract Background: Sugarcane cultivation plays an important role in Brazilian economy, and it is expanding fast, mainly due to the increasing demand for ethanol production. In order to understand the impact of sugarcane cultivation and management, we studied sugarcane under different management regimes (pre-harvest burn and mechanical, unburnt harvest, or green cane), next to a control treatment with native vegetation. The soil bacterial community structure (including an evaluation of the diversity of the ammonia oxidizing (amoA) and denitrifying (nirK) genes), greenhouse gas flow and several soil physicochemical properties were evaluated. Results: Our results indicate that sugarcane cultivation in this region resulted in changes in several soil properties. Moreover, such changes are reflected in the soil microbiota. No significant influence of soil management on greenhouse gas fluxes was found. However, we did find a relationship between the biological changes and the dynamics of soil nutrients. In particular, the burnt cane and green cane treatments had distinct modifications. There were significant differences in the structure of the total bacterial, the ammonia oxidizing and the denitrifying bacterial communities, being that these groups responded differently to the changes in the soil. A combination of physical and chemical factors was correlated to the changes in the structures of the total bacterial communities of the soil. The changes in the structures of the funct... Mostrar Tudo |
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Palavras-Chave: |
DGGE; Integrated analysis; Soil microbiology. |
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Thesagro: |
Cerrado. |
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Thesaurus NAL: |
nitrogen cycle; sugarcane. |
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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/67518/1/BMC-Microbiology-Balieiro-e-Coutinho.pdf
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Marc: |
LEADER 03050naa a2200289 a 4500
001 1935854
005 2021-11-03
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1186/1471-2180-12-170$2DOI
100 1 $aRACHID, C. T. C. C.
245 $aPhysical-chemical and microbiological changes in Cerrado Soil under differing sugarcane harvest management systems.$h[electronic resource]
260 $c2012
520 $aAbstract Background: Sugarcane cultivation plays an important role in Brazilian economy, and it is expanding fast, mainly due to the increasing demand for ethanol production. In order to understand the impact of sugarcane cultivation and management, we studied sugarcane under different management regimes (pre-harvest burn and mechanical, unburnt harvest, or green cane), next to a control treatment with native vegetation. The soil bacterial community structure (including an evaluation of the diversity of the ammonia oxidizing (amoA) and denitrifying (nirK) genes), greenhouse gas flow and several soil physicochemical properties were evaluated. Results: Our results indicate that sugarcane cultivation in this region resulted in changes in several soil properties. Moreover, such changes are reflected in the soil microbiota. No significant influence of soil management on greenhouse gas fluxes was found. However, we did find a relationship between the biological changes and the dynamics of soil nutrients. In particular, the burnt cane and green cane treatments had distinct modifications. There were significant differences in the structure of the total bacterial, the ammonia oxidizing and the denitrifying bacterial communities, being that these groups responded differently to the changes in the soil. A combination of physical and chemical factors was correlated to the changes in the structures of the total bacterial communities of the soil. The changes in the structures of the functional groups follow a different pattern than the physicochemical variables. The latter might indicate a strong influence of interactions among different bacterial groups in the N cycle, emphasizing the importance of biological factors in the structuring of these communities. Conclusion: Sugarcane land use significantly impacted the structure of total selected soil bacterial communities and ammonia oxidizing and denitrifier gene diversities in a Cerrado field site in Central Brazil. A high impact of land use was observed in soil under the common burnt cane management. The green cane soil also presented different profiles compared to the control soil, but to at a lesser degree.
650 $anitrogen cycle
650 $asugarcane
650 $aCerrado
653 $aDGGE
653 $aIntegrated analysis
653 $aSoil microbiology
700 1 $aPICCOLO, M. C.
700 1 $aLEITE, D. C. A.
700 1 $aBALIEIRO, F. de C.
700 1 $aCOUTINHO, H. L. da C.
700 1 $aELSAS, J. D. van
700 1 $aPEIXOTO, R. S.
700 1 $aROSADO, A. S.
773 $tBMC Microbiology$gv. 12, 170, 2012.
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