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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Meio Ambiente. |
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Data corrente: |
31/03/2021 |
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Data da última atualização: |
22/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANO, E. E.; RIZZOLI, P.; KOYAMA, C. N.; WATANABE, M.; ADAMI, M.; SHIMABUKURO, Y. E.; SILVA, G. B. S. da; FREITAS, D. M. de. |
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Afiliação: |
EDSON EYJI SANO, CPAC; PAOLA RIZOLLI, Microwaves and Radar Institute, German Aerospace Center; CHRISTIAN N KOYAMA, Tokyo Denki University; MANABU WATANABE, Tokyo Denki University; MARCOS ADAMI, INPE; YOSIO EDEMIR SHIMABUKURO, INPE; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPMA; DANIEL MORAES DE FREITAS, IBAMA. |
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Título: |
Comparative analysis of the global forest/non-forest maps derived from SAR and optical sensors: case studies from brazilian Amazon and Cerrado biomes. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Remote Sensing, v. 13, n. 3, article 367, 2021. |
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DOI: |
https://doi.org/10.3390/rs13030367 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Global-scale forest/non-forest (FNF) maps are of crucial importance for applications like biomass estimation and deforestation monitoring. Global FNF maps based on optical remote sensing data have been produced by the wall-to-wall satellite image analyses or sampling strategies. The German Aerospace Center (DLR) and the Japan Aerospace Exploration Agency (JAXA) also made available their global FNF maps based on synthetic aperture radar (SAR) data. This paper attempted to answer the following scientific question: how comparable are the FNF products derived from optical and SAR data? As test sites we selected the Amazon (tropical rainforest) and Cerrado (tropical savanna) biomes, the two largest Brazilian biomes. Forest estimations from 2015 derived from TanDEM-X (X band; HH polarization) and ALOS-2 (L band; HV polarization) SAR data, as well as forest cover information derived from Landsat 8 optical data were compared with each other at the municipality and image sampling levels. The optical-based forest estimations considered in this study were derived from the MapBiomas project, a Brazilian multi-institutional project to map land use and land cover (LULC) classes of an entire country based on historical time series of Landsat data. In addition to the existing forest maps, a set of 1619 Landsat 8 RGB color composites was used to generate new independent comparison data composed of circular areas with 5-km diameter, which were visually interpreted after image segmentation. The Spearman rank correlation estimated the correlation among the data sets and the paired Mann–Whitney–Wilcoxon tested the hypothesis that the data sets are statistically equal. Results showed that forest maps derived from SAR and optical satellites are statistically different regardless of biome or scale of study (municipality or image sampling), except for the Cerrado´s forest estimations derived from TanDEM-X and ALOS-2. Nevertheless, the percentage of pixels classified as forest or non-forest by both SAR sensors were 90% and 80% for the Amazon and Cerrado biome, respectively, indicating an overall good agreement. MenosAbstract: Global-scale forest/non-forest (FNF) maps are of crucial importance for applications like biomass estimation and deforestation monitoring. Global FNF maps based on optical remote sensing data have been produced by the wall-to-wall satellite image analyses or sampling strategies. The German Aerospace Center (DLR) and the Japan Aerospace Exploration Agency (JAXA) also made available their global FNF maps based on synthetic aperture radar (SAR) data. This paper attempted to answer the following scientific question: how comparable are the FNF products derived from optical and SAR data? As test sites we selected the Amazon (tropical rainforest) and Cerrado (tropical savanna) biomes, the two largest Brazilian biomes. Forest estimations from 2015 derived from TanDEM-X (X band; HH polarization) and ALOS-2 (L band; HV polarization) SAR data, as well as forest cover information derived from Landsat 8 optical data were compared with each other at the municipality and image sampling levels. The optical-based forest estimations considered in this study were derived from the MapBiomas project, a Brazilian multi-institutional project to map land use and land cover (LULC) classes of an entire country based on historical time series of Landsat data. In addition to the existing forest maps, a set of 1619 Landsat 8 RGB color composites was used to generate new independent comparison data composed of circular areas with 5-km diameter, which were visually interpreted after image segmen... Mostrar Tudo |
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Palavras-Chave: |
ALOS-2; Forest mapping; SAR; TanDEM-X. |
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Thesagro: |
Cerrado; Floresta Tropical; Mapa; Sensoriamento Remoto. |
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Thesaurus Nal: |
Remote sensing; Savannas; Tropical forests. |
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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/227779/1/Sano-comparative-analysis.pdf
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Marc: |
LEADER 03169naa a2200349 a 4500
001 2136157
005 2022-03-22
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/rs13030367$2DOI
100 1 $aSANO, E. E.
245 $aComparative analysis of the global forest/non-forest maps derived from SAR and optical sensors$bcase studies from brazilian Amazon and Cerrado biomes.$h[electronic resource]
260 $c2021
520 $aAbstract: Global-scale forest/non-forest (FNF) maps are of crucial importance for applications like biomass estimation and deforestation monitoring. Global FNF maps based on optical remote sensing data have been produced by the wall-to-wall satellite image analyses or sampling strategies. The German Aerospace Center (DLR) and the Japan Aerospace Exploration Agency (JAXA) also made available their global FNF maps based on synthetic aperture radar (SAR) data. This paper attempted to answer the following scientific question: how comparable are the FNF products derived from optical and SAR data? As test sites we selected the Amazon (tropical rainforest) and Cerrado (tropical savanna) biomes, the two largest Brazilian biomes. Forest estimations from 2015 derived from TanDEM-X (X band; HH polarization) and ALOS-2 (L band; HV polarization) SAR data, as well as forest cover information derived from Landsat 8 optical data were compared with each other at the municipality and image sampling levels. The optical-based forest estimations considered in this study were derived from the MapBiomas project, a Brazilian multi-institutional project to map land use and land cover (LULC) classes of an entire country based on historical time series of Landsat data. In addition to the existing forest maps, a set of 1619 Landsat 8 RGB color composites was used to generate new independent comparison data composed of circular areas with 5-km diameter, which were visually interpreted after image segmentation. The Spearman rank correlation estimated the correlation among the data sets and the paired Mann–Whitney–Wilcoxon tested the hypothesis that the data sets are statistically equal. Results showed that forest maps derived from SAR and optical satellites are statistically different regardless of biome or scale of study (municipality or image sampling), except for the Cerrado´s forest estimations derived from TanDEM-X and ALOS-2. Nevertheless, the percentage of pixels classified as forest or non-forest by both SAR sensors were 90% and 80% for the Amazon and Cerrado biome, respectively, indicating an overall good agreement.
650 $aRemote sensing
650 $aSavannas
650 $aTropical forests
650 $aCerrado
650 $aFloresta Tropical
650 $aMapa
650 $aSensoriamento Remoto
653 $aALOS-2
653 $aForest mapping
653 $aSAR
653 $aTanDEM-X
700 1 $aRIZZOLI, P.
700 1 $aKOYAMA, C. N.
700 1 $aWATANABE, M.
700 1 $aADAMI, M.
700 1 $aSHIMABUKURO, Y. E.
700 1 $aSILVA, G. B. S. da
700 1 $aFREITAS, D. M. de
773 $tRemote Sensing$gv. 13, n. 3, article 367, 2021.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Unidades Centrais. |
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Data corrente: |
08/09/2022 |
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Data da última atualização: |
20/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SAYD, R. M.; AMABILE, R. F.; FALEIRO, F. G.; BRIGE, F. A. A.; MELO, J. V. P. |
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Afiliação: |
RICARDO MENESES SAYD, CENTRO UNIVERSITÁRIO ICESP; RENATO FERNANDO AMABILE, CPAC; FABIO GELAPE FALEIRO, CPAC; FELIPE AUGUSTO ALVES BRIGE, CENTRO UNIVERSITÁRIO ICESP; JOÃO VICTOR PINHEIRO MELO, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Molecular and agronomic genetic diversity between barley genotypes under irrigation in the Brazilian Cerrado. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 57, e02731, 2022. |
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DOI: |
https://doi. org/10.1590/S1678-3921.pab2022.v57.02731 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Diversidade genética molecular e agronômica entre genótipos de cevada sob irrigação no Cerrado brasileiro. |
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Conteúdo: |
ABSTRACT - The objective of this work was to evaluate and compare the genetic diversity of 29 barley genotypes, on the basis of molecular markers
and quantitative agronomic traits, under irrigation in the Brazilian Cerrado. The randomly amplified polymorphic DNA (RAPD), inter sequence simple
repeats (ISSR), and simple sequence repeat (SSR) molecular markers were used. The quantitative agronomic traits were evaluated in two irrigated
environments in the Brazilian Cerrado, for the following parameters: estimated grain yield, grain size, thousand seed weight, plant height, lodging degree, and days to heading. Marker polymorphisms were 91, 51.46, and 85% for RAPD, ISSR, and SSR, respectively. The RAPD, ISSR, and SSR markers are complementary for the identification of genetic variability among barley genotypes. The low correlations between the distances estimated on the basis of molecular markers and the distances estimated on the basis of agronomic traits emphasize the importance of using complementary analyses of molecular markers for more complete studies on genetic variability. The agronomic traits of the genotypes are different in the two environments. The selected genotypes can compose the working collection of irrigated barley in the Brazilian Cerrado because of their wide genetic variability.
RESUMO - O objetivo deste trabalho foi avaliar e comparar a diversidade genética de 29 genótipos de cevada, com base em marcadores moleculares e
características agronômicas quantitativas, sob irrigação no Cerrado. Foram utilizados os marcadores moleculares ?randomly amplified polymorphic DNA? (RAPD), ?inter simple sequence repeats? (ISSR) e ?simple sequence repeat? (SSR). As características agronômicas quantitativas foram avaliadas em dois ambientes, sob irrigação no Cerrado, quanto aos seguintes parâmetros: rendimento estimado de grãos, tamanho do grão, peso de mil sementes, altura
de plantas, grau de acamamento e dias para espigamento. Os polimorfismos dos marcadores foram 91, 51,46 e 85% para RAPD, ISSR e SSR, respectivamente. Os marcadores RAPD, ISSR e SSR são complementares quanto à identificação da variabilidade genética dos genótipos de cevada. As baixas correlações entre as distâncias calculadas com base nos marcadores moleculares e as distâncias calculadas com base nas características agronômicas enfatizam a importância da utilização de análises complementares de marcadores moleculares para estudos mais completos quanto à variabilidade genética. As características agronômicas dos genótipos são distintas nos dois ambientes. Os genótipos selecionados podem compor a coleção de trabalho de cevada irrigada no Cerrado, em razão de sua ampla variabilidade genética. MenosABSTRACT - The objective of this work was to evaluate and compare the genetic diversity of 29 barley genotypes, on the basis of molecular markers
and quantitative agronomic traits, under irrigation in the Brazilian Cerrado. The randomly amplified polymorphic DNA (RAPD), inter sequence simple
repeats (ISSR), and simple sequence repeat (SSR) molecular markers were used. The quantitative agronomic traits were evaluated in two irrigated
environments in the Brazilian Cerrado, for the following parameters: estimated grain yield, grain size, thousand seed weight, plant height, lodging degree, and days to heading. Marker polymorphisms were 91, 51.46, and 85% for RAPD, ISSR, and SSR, respectively. The RAPD, ISSR, and SSR markers are complementary for the identification of genetic variability among barley genotypes. The low correlations between the distances estimated on the basis of molecular markers and the distances estimated on the basis of agronomic traits emphasize the importance of using complementary analyses of molecular markers for more complete studies on genetic variability. The agronomic traits of the genotypes are different in the two environments. The selected genotypes can compose the working collection of irrigated barley in the Brazilian Cerrado because of their wide genetic variability.
RESUMO - O objetivo deste trabalho foi avaliar e comparar a diversidade genética de 29 genótipos de cevada, com base em marcadores moleculares e
características agronômicas quantita... Mostrar Tudo |
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Thesagro: |
Cerrado; Cevada; Genética Molecular; Genótipo; Hordeum Vulgare; Irrigação; Marcador Molecular. |
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Thesaurus NAL: |
Barley; Irrigation; Molecular genetics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146258/1/Molecular-agronomic-genetic-2022.pdf
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Marc: |
LEADER 03796naa a2200313 a 4500
001 2146648
005 2022-09-20
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi. org/10.1590/S1678-3921.pab2022.v57.02731$2DOI
100 1 $aSAYD, R. M.
245 $aMolecular and agronomic genetic diversity between barley genotypes under irrigation in the Brazilian Cerrado.$h[electronic resource]
260 $c2022
500 $aTítulo em português: Diversidade genética molecular e agronômica entre genótipos de cevada sob irrigação no Cerrado brasileiro.
520 $aABSTRACT - The objective of this work was to evaluate and compare the genetic diversity of 29 barley genotypes, on the basis of molecular markers and quantitative agronomic traits, under irrigation in the Brazilian Cerrado. The randomly amplified polymorphic DNA (RAPD), inter sequence simple repeats (ISSR), and simple sequence repeat (SSR) molecular markers were used. The quantitative agronomic traits were evaluated in two irrigated environments in the Brazilian Cerrado, for the following parameters: estimated grain yield, grain size, thousand seed weight, plant height, lodging degree, and days to heading. Marker polymorphisms were 91, 51.46, and 85% for RAPD, ISSR, and SSR, respectively. The RAPD, ISSR, and SSR markers are complementary for the identification of genetic variability among barley genotypes. The low correlations between the distances estimated on the basis of molecular markers and the distances estimated on the basis of agronomic traits emphasize the importance of using complementary analyses of molecular markers for more complete studies on genetic variability. The agronomic traits of the genotypes are different in the two environments. The selected genotypes can compose the working collection of irrigated barley in the Brazilian Cerrado because of their wide genetic variability. RESUMO - O objetivo deste trabalho foi avaliar e comparar a diversidade genética de 29 genótipos de cevada, com base em marcadores moleculares e características agronômicas quantitativas, sob irrigação no Cerrado. Foram utilizados os marcadores moleculares ?randomly amplified polymorphic DNA? (RAPD), ?inter simple sequence repeats? (ISSR) e ?simple sequence repeat? (SSR). As características agronômicas quantitativas foram avaliadas em dois ambientes, sob irrigação no Cerrado, quanto aos seguintes parâmetros: rendimento estimado de grãos, tamanho do grão, peso de mil sementes, altura de plantas, grau de acamamento e dias para espigamento. Os polimorfismos dos marcadores foram 91, 51,46 e 85% para RAPD, ISSR e SSR, respectivamente. Os marcadores RAPD, ISSR e SSR são complementares quanto à identificação da variabilidade genética dos genótipos de cevada. As baixas correlações entre as distâncias calculadas com base nos marcadores moleculares e as distâncias calculadas com base nas características agronômicas enfatizam a importância da utilização de análises complementares de marcadores moleculares para estudos mais completos quanto à variabilidade genética. As características agronômicas dos genótipos são distintas nos dois ambientes. Os genótipos selecionados podem compor a coleção de trabalho de cevada irrigada no Cerrado, em razão de sua ampla variabilidade genética.
650 $aBarley
650 $aIrrigation
650 $aMolecular genetics
650 $aCerrado
650 $aCevada
650 $aGenética Molecular
650 $aGenótipo
650 $aHordeum Vulgare
650 $aIrrigação
650 $aMarcador Molecular
700 1 $aAMABILE, R. F.
700 1 $aFALEIRO, F. G.
700 1 $aBRIGE, F. A. A.
700 1 $aMELO, J. V. P.
773 $tPesquisa Agropecuária Brasileira$gv. 57, e02731, 2022.
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