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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
14/12/2020 |
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Data da última atualização: |
14/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BISPO, P. da C.; RODRÍGUEZ-VEIGA, P.; ZIMBRES, B.; MIRANDA, S. do C. de; CEZARE, C. H. G.; FLEMING, S.; BALDACCHINO, F.; LOUIS, V.; RAINS, D.; GARCIA, M.; ESPIRITO-SANTO, F. D. B.; ROITMAN, I.; PACHECO-PASCAGAZA, A. M.; GOU, Y.; ROBERTS, J.; BARRETT, K.; FERREIRA, L. G.; SHIMBO, J. Z.; ALENCAR, A.; BUSTAMANTE, M.; WOODHOUSE, I. H.; SANO, E. E.; OMETTO, J. P.; TANSEY, K.; BALZTER, H. |
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Afiliação: |
EDSON EYJI SANO, CPAC. |
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Título: |
Woody Aboveground Biomass Mapping of the Brazilian Savanna with a Multi-Sensor and Machine Learning Approach. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Remote Sensing, v. 12, n. 17, 2020. |
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Idioma: |
Português |
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Conteúdo: |
The tropical savanna in Brazil known as the Cerrado covers circa 23% of the Brazilian territory, but only 3% of this area is protected. High rates of deforestation and degradation in the woodland and forest areas have made the Cerrado the second-largest source of carbon emissions in Brazil. However, data on these emissions are highly uncertain because of the spatial and temporal variability of the aboveground biomass (AGB) in this biome. Remote-sensing data combined with local vegetation inventories provide the means to quantify the AGB at large scales. Here, we quantify the spatial distribution of woody AGB in the Rio Vermelho watershed, located in the centre of the Cerrado, at a high spatial resolution of 30 metres, with a random forest (RF) machine-learning approach. We produced the first high-resolution map of the AGB for a region in the Brazilian Cerrado using a combination of vegetation inventory plots, airborne light detection and ranging (LiDAR) data, and multispectral and radar satellite images (Landsat 8 and ALOS-2/PALSAR-2). A combination of random forest (RF) models and jackknife analyses enabled us to select the best remote-sensing variables to quantify the AGB on a large scale. Overall, the relationship between the ground data from vegetation inventories and remote-sensing variables was strong (R2 = 0.89), with a root-mean-square error (RMSE) of 7.58 Mg ha−1 and a bias of 0.43 Mg ha−1. View Full-Text |
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Thesagro: |
Biomassa; Carbono; Cerrado; Sensoriamento Remoto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/219145/1/SANO-WOODY-ABOVEGROUND-BIOMASS-MAPPING-OF-THE-BRAZILIAN-SAVANNA.pdf
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Marc: |
LEADER 02683naa a2200457 a 4500
001 2128070
005 2020-12-14
008 2020 bl uuuu u00u1 u #d
100 1 $aBISPO, P. da C.
245 $aWoody Aboveground Biomass Mapping of the Brazilian Savanna with a Multi-Sensor and Machine Learning Approach.$h[electronic resource]
260 $c2020
520 $aThe tropical savanna in Brazil known as the Cerrado covers circa 23% of the Brazilian territory, but only 3% of this area is protected. High rates of deforestation and degradation in the woodland and forest areas have made the Cerrado the second-largest source of carbon emissions in Brazil. However, data on these emissions are highly uncertain because of the spatial and temporal variability of the aboveground biomass (AGB) in this biome. Remote-sensing data combined with local vegetation inventories provide the means to quantify the AGB at large scales. Here, we quantify the spatial distribution of woody AGB in the Rio Vermelho watershed, located in the centre of the Cerrado, at a high spatial resolution of 30 metres, with a random forest (RF) machine-learning approach. We produced the first high-resolution map of the AGB for a region in the Brazilian Cerrado using a combination of vegetation inventory plots, airborne light detection and ranging (LiDAR) data, and multispectral and radar satellite images (Landsat 8 and ALOS-2/PALSAR-2). A combination of random forest (RF) models and jackknife analyses enabled us to select the best remote-sensing variables to quantify the AGB on a large scale. Overall, the relationship between the ground data from vegetation inventories and remote-sensing variables was strong (R2 = 0.89), with a root-mean-square error (RMSE) of 7.58 Mg ha−1 and a bias of 0.43 Mg ha−1. View Full-Text
650 $aBiomassa
650 $aCarbono
650 $aCerrado
650 $aSensoriamento Remoto
700 1 $aRODRÍGUEZ-VEIGA, P.
700 1 $aZIMBRES, B.
700 1 $aMIRANDA, S. do C. de
700 1 $aCEZARE, C. H. G.
700 1 $aFLEMING, S.
700 1 $aBALDACCHINO, F.
700 1 $aLOUIS, V.
700 1 $aRAINS, D.
700 1 $aGARCIA, M.
700 1 $aESPIRITO-SANTO, F. D. B.
700 1 $aROITMAN, I.
700 1 $aPACHECO-PASCAGAZA, A. M.
700 1 $aGOU, Y.
700 1 $aROBERTS, J.
700 1 $aBARRETT, K.
700 1 $aFERREIRA, L. G.
700 1 $aSHIMBO, J. Z.
700 1 $aALENCAR, A.
700 1 $aBUSTAMANTE, M.
700 1 $aWOODHOUSE, I. H.
700 1 $aSANO, E. E.
700 1 $aOMETTO, J. P.
700 1 $aTANSEY, K.
700 1 $aBALZTER, H.
773 $tRemote Sensing$gv. 12, n. 17, 2020.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
12/12/2016 |
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Data da última atualização: |
12/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
MACIEL, E. S.; SONATI, J. G.; LIMA, L. K. F.; SAVAY-DA-SILVA, L. K.; GALVÃO, J. A.; OETTERER, M. |
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Afiliação: |
E. S. MACIEL, CENTRO UNIVERSITÁRIO LUTERANO DE PALMAS-TO; J. G. SONATI, UNICAMP; LEANDRO KANAMARU FRANCO DE LIMA, CNPASA; L. K. SAVAY-DA-SILVA, UFMT; J. A. GALVÃO, ESALQ; M. OETTERER, ESALQ. |
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Título: |
Similarities and distinctions of fish consumption in Brazil and Portugal measured through electronic survey. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
International Food Research Journal, v. 23, n. 1, p. 395-402, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Volunteers from Brazil and Portugal responded a questionnaire about their habits of fish consumption. In terms of amount of fish consumed monthly in Brazil, the intake was between 200 and 500 g, while the Portuguese (66.1%) reported a monthly consumption of more than 500g of fish. Salmon is the most commonly consumed species and was mentioned in both countries, but the hake is the favorite in Portugal. The preservation method adopted in both countries is freezing. In Brazil, the common fish cut was the filet and in Portugal, it was the fish flitch or ?clean fish?. The guarantee of origin proved to be an important factor for volunteers. Consumers also reported the importance of the identification of sustainable production of fish on the package. The eating habits of fish in both countries were related to consumers? perceptions and preferences of preparation, preservation and marketing conditions. The results show unsatisfaction of the Brazilian consumers about the diversity and quality of fish products available on the market. |
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Thesagro: |
Consumidor; Consumo alimentar; Peixe; Pesquisa de mercado. |
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Thesaurus NAL: |
Consumer preferences; Fish consumption; Marketing. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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Marc: |
LEADER 01837naa a2200265 a 4500
001 2058444
005 2016-12-12
008 2016 bl uuuu u00u1 u #d
100 1 $aMACIEL, E. S.
245 $aSimilarities and distinctions of fish consumption in Brazil and Portugal measured through electronic survey.$h[electronic resource]
260 $c2016
520 $aVolunteers from Brazil and Portugal responded a questionnaire about their habits of fish consumption. In terms of amount of fish consumed monthly in Brazil, the intake was between 200 and 500 g, while the Portuguese (66.1%) reported a monthly consumption of more than 500g of fish. Salmon is the most commonly consumed species and was mentioned in both countries, but the hake is the favorite in Portugal. The preservation method adopted in both countries is freezing. In Brazil, the common fish cut was the filet and in Portugal, it was the fish flitch or ?clean fish?. The guarantee of origin proved to be an important factor for volunteers. Consumers also reported the importance of the identification of sustainable production of fish on the package. The eating habits of fish in both countries were related to consumers? perceptions and preferences of preparation, preservation and marketing conditions. The results show unsatisfaction of the Brazilian consumers about the diversity and quality of fish products available on the market.
650 $aConsumer preferences
650 $aFish consumption
650 $aMarketing
650 $aConsumidor
650 $aConsumo alimentar
650 $aPeixe
650 $aPesquisa de mercado
700 1 $aSONATI, J. G.
700 1 $aLIMA, L. K. F.
700 1 $aSAVAY-DA-SILVA, L. K.
700 1 $aGALVÃO, J. A.
700 1 $aOETTERER, M.
773 $tInternational Food Research Journal$gv. 23, n. 1, p. 395-402, 2016.
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Embrapa Pesca e Aquicultura (CNPASA) |
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