| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
12/03/2014 |
|
Data da última atualização: |
12/03/2014 |
|
Tipo da produção científica: |
Folder/Folheto/Cartilha |
|
Autoria: |
LEDO, C. A. da S.; ALVES, A. A. C.; MARTINS, M. L. L.; CARVALHO, P. C. L. de. |
|
Afiliação: |
CARLOS ALBERTO DA SILVA LEDO, CNPMF; ALFREDO AUGUSTO CUNHA ALVES, CNPMF; MÁRCIO LACERDA LOPES MARTINS; PAULO CÉZAR LEMOS DE CARVALHO. |
|
Título: |
Coleção de espécies silvestres de Manihot da Embrapa Mandioca e Fruticultura. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Cruz das Almas, BA: Embrapa Mandioca e Fruticultura, 2014. |
|
Idioma: |
Português |
|
Conteúdo: |
O gênero Manihot possui aproximadamente 100 espécies e o Brasil é considerado o maior centro de diversidade do gênero, em que cerca de 80% das espécies ocorrem. As espécies silvestres de Manihot são importantes reservatórios de alelos de interesse a serem transferidos para as espécies cultivadas, visando o desenvolvimento de variedades melhoradas que sejam mais resistentes a fatores bióticos e abióticos e que expressem maior produtividade. |
|
Thesagro: |
Mandioca. |
|
Thesaurus Nal: |
Cassava. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00974nam a2200169 a 4500
001 1982100
005 2014-03-12
008 2014 bl uuuu u0uu1 u #d
100 1 $aLEDO, C. A. da S.
245 $aColeção de espécies silvestres de Manihot da Embrapa Mandioca e Fruticultura.$h[electronic resource]
260 $aCruz das Almas, BA: Embrapa Mandioca e Fruticultura$c2014
520 $aO gênero Manihot possui aproximadamente 100 espécies e o Brasil é considerado o maior centro de diversidade do gênero, em que cerca de 80% das espécies ocorrem. As espécies silvestres de Manihot são importantes reservatórios de alelos de interesse a serem transferidos para as espécies cultivadas, visando o desenvolvimento de variedades melhoradas que sejam mais resistentes a fatores bióticos e abióticos e que expressem maior produtividade.
650 $aCassava
650 $aMandioca
700 1 $aALVES, A. A. C.
700 1 $aMARTINS, M. L. L.
700 1 $aCARVALHO, P. C. L. de
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
21/09/2018 |
|
Data da última atualização: |
07/01/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
CHEN, Y.; LU, D.; MORAN, E.; BATISTELLA, M.; DUTRA, L. V.; DEL'ARCO SANCHES, I.; SILVA, R. F. B. da; HUANG, J.; LUIZ, A. J. B.; OLIVEIRA, M. A. F. de. |
|
Afiliação: |
YAOLINAG CHEN, Zhejiang Agriculture and Forestry University, Zhejiang University, Michigan State University; DENGSHENG LU, Zhejiang Agriculture and Forestry University, Michigan State University; EMILIO MORAN, Michigan State University; MATEUS BATISTELLA, CNPTIA, Unicamp; LUCIANO VIEIRA DUTRA, INPE; IARA DEL´ARCO SANCHES, INPE; RAMON FELIPE BICUDO DA SILVA, Unicamp; JINGFENG HUANG, Zhejiang University; ALFREDO JOSE BARRETO LUIZ, CNPMA; MARIA ANTONIA FALCAO DE OLIVEIRA, INPE. |
|
Título: |
Mapping croplands, cropping patterns, and crop types using MODIS time-series data. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
International Journal of Applied Earth Observation and Geoinformation, v. 69, p. 133-147, July 2018. |
|
DOI: |
https://doi.org/10.1016/j.jag.2018.03.00 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: The importance of mapping regional and global cropland distribution in timely ways has been recognized, but separation of crop types and multiple cropping patterns is challenging due to their spectral similarity. This study developed a new approach to identify crop types (including soy, cotton and maize) and cropping patterns (Soy-Maize, Soy-Cotton, Soy-Pasture, Soy-Fallow, Fallow-Cotton and Single crop) in the state of Mato Grosso, Brazil. The Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) time series data for 2015 and 2016 and field survey data were used in this research. The major steps of this proposed approach include: (1) reconstructing NDVI time series data by removing the cloud-contaminated pixels using the temporal interpolation algorithm, (2) identifying the best periods and developing temporal indices and phenological parameters to distinguish croplands from other land cover types, and (3) developing crop temporal indices to extract cropping patterns using NDVI time-series data and group cropping patterns into crop types. Decision tree classifier was used to map cropping patterns based on these temporal indices. Croplands from Landsat imagery in 2016, cropping pattern samples from field survey in 2016, and the planted area of crop types in 2015 were used for accuracy assessment. Overall accuracies of approximately 90%, 73% and 86%, respectively were obtained for croplands, cropping patterns, and crop types. The adjusted coefficients of determination of total crop, soy, maize, and cotton areas with corresponding statistical areas were 0.94, 0.94, 0.88 and 0.88, respectively. This research indicates that the proposed approach is promising for mapping large-scale croplands, their cropping patterns and crop types. MenosAbstract: The importance of mapping regional and global cropland distribution in timely ways has been recognized, but separation of crop types and multiple cropping patterns is challenging due to their spectral similarity. This study developed a new approach to identify crop types (including soy, cotton and maize) and cropping patterns (Soy-Maize, Soy-Cotton, Soy-Pasture, Soy-Fallow, Fallow-Cotton and Single crop) in the state of Mato Grosso, Brazil. The Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) time series data for 2015 and 2016 and field survey data were used in this research. The major steps of this proposed approach include: (1) reconstructing NDVI time series data by removing the cloud-contaminated pixels using the temporal interpolation algorithm, (2) identifying the best periods and developing temporal indices and phenological parameters to distinguish croplands from other land cover types, and (3) developing crop temporal indices to extract cropping patterns using NDVI time-series data and group cropping patterns into crop types. Decision tree classifier was used to map cropping patterns based on these temporal indices. Croplands from Landsat imagery in 2016, cropping pattern samples from field survey in 2016, and the planted area of crop types in 2015 were used for accuracy assessment. Overall accuracies of approximately 90%, 73% and 86%, respectively were obtained for croplands, cropping patterns, and crop t... Mostrar Tudo |
|
Palavras-Chave: |
Crop types; Croplands; Cropping patterns; Decision tree classifier; Índice de vegetação; MODIS NDVI; Séries temporais. |
|
Thesagro: |
Algodão; Milho; Sensoriamento Remoto; Sistema de Informação Geográfica; Soja. |
|
Thesaurus NAL: |
Geographic information systems; Normalized difference vegetation index; Remote sensing; Time series analysis. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 03130naa a2200433 a 4500
001 2096162
005 2020-01-07
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jag.2018.03.00$2DOI
100 1 $aCHEN, Y.
245 $aMapping croplands, cropping patterns, and crop types using MODIS time-series data.$h[electronic resource]
260 $c2018
520 $aAbstract: The importance of mapping regional and global cropland distribution in timely ways has been recognized, but separation of crop types and multiple cropping patterns is challenging due to their spectral similarity. This study developed a new approach to identify crop types (including soy, cotton and maize) and cropping patterns (Soy-Maize, Soy-Cotton, Soy-Pasture, Soy-Fallow, Fallow-Cotton and Single crop) in the state of Mato Grosso, Brazil. The Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) time series data for 2015 and 2016 and field survey data were used in this research. The major steps of this proposed approach include: (1) reconstructing NDVI time series data by removing the cloud-contaminated pixels using the temporal interpolation algorithm, (2) identifying the best periods and developing temporal indices and phenological parameters to distinguish croplands from other land cover types, and (3) developing crop temporal indices to extract cropping patterns using NDVI time-series data and group cropping patterns into crop types. Decision tree classifier was used to map cropping patterns based on these temporal indices. Croplands from Landsat imagery in 2016, cropping pattern samples from field survey in 2016, and the planted area of crop types in 2015 were used for accuracy assessment. Overall accuracies of approximately 90%, 73% and 86%, respectively were obtained for croplands, cropping patterns, and crop types. The adjusted coefficients of determination of total crop, soy, maize, and cotton areas with corresponding statistical areas were 0.94, 0.94, 0.88 and 0.88, respectively. This research indicates that the proposed approach is promising for mapping large-scale croplands, their cropping patterns and crop types.
650 $aGeographic information systems
650 $aNormalized difference vegetation index
650 $aRemote sensing
650 $aTime series analysis
650 $aAlgodão
650 $aMilho
650 $aSensoriamento Remoto
650 $aSistema de Informação Geográfica
650 $aSoja
653 $aCrop types
653 $aCroplands
653 $aCropping patterns
653 $aDecision tree classifier
653 $aÍndice de vegetação
653 $aMODIS NDVI
653 $aSéries temporais
700 1 $aLU, D.
700 1 $aMORAN, E.
700 1 $aBATISTELLA, M.
700 1 $aDUTRA, L. V.
700 1 $aDEL'ARCO SANCHES, I.
700 1 $aSILVA, R. F. B. da
700 1 $aHUANG, J.
700 1 $aLUIZ, A. J. B.
700 1 $aOLIVEIRA, M. A. F. de
773 $tInternational Journal of Applied Earth Observation and Geoinformation$gv. 69, p. 133-147, July 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
