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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
30/11/2020 |
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Data da última atualização: |
30/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOURA, Y. M. de; BALZTER, H.; GALVÃO, L. S.; DALAGNOL, R.; ESPÍRITO-SANTO, F.; SANTOS, E. G.; GARCIA, M.; BISPO, P. da C.; OLIVEIRA JUNIOR, R. C. de; SHIMABUKURO, Y. E. |
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Afiliação: |
Yhasmin Mendes de Moura, University of Leicester; Heiko Balzter, University of Leicester; Lênio S. Galvão, INPE; Ricardo Dalagnol, INPE; Fernando Espírito-Santo, University of Leicester; Erone G. Santos, University of Helsinki; Mariano Garcia, Universidad de Alcalá; Polyanna da Conceição Bispo, University of Manchester; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Yosio E. Shimabukuro, INPE. |
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Título: |
Carbon dynamics in a human-modified tropical forest: a case study using multi-temporal LiDAR Data. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Remote Sensing, v. 12, n. 3, Article 430, 2020. |
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DOI: |
https://doi.org/10.3390/rs12030430 |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical forests hold significant amounts of carbon and play a critical role on Earth´s climate system. To date, carbon dynamics over tropical forests have been poorly assessed, especially over vast areas of the tropics that have been affected by some type of disturbance (e.g., selective logging, understory fires, and fragmentation). Understanding the multi-temporal dynamics of carbon stocks over human-modified tropical forests (HMTF) is crucial to close the carbon cycle balance in the tropics. Here, we used multi-temporal and high-spatial resolution airborne LiDAR data to quantify rates of carbon dynamics over a large patch of HMTF in eastern Amazon, Brazil. We described a robust approach to monitor changes in aboveground forest carbon stocks between 2012 and 2018. Our results showed that this particular HMTF lost 0.57 m·yr−1 in mean forest canopy height and 1.38 Mg·C·ha-1 yr-1 of forest carbon between 2012 and 2018. LiDAR-based estimates of Aboveground Carbon Density (ACD) showed progressive loss through the years, from 77.9 Mg·C·ha-1 in 2012 to 53.1 Mg·C·ha-1 in 2018, thus a decrease of 31.8%. Rates of carbon stock changes were negative for all time intervals analyzed, yielding average annual carbon loss rates of -1.34 Mg·C·ha−1·yr−1. This suggests that this HMTF is acting more as a source of carbon than a sink, having great negative implications for carbon emission scenarios in tropical forests. Although more studies of forest dynamics in HMTFs are necessary to reduce the current remaining uncertainties in the carbon cycle, our results highlight the persistent effects of carbon losses for the study area. HMTFs are likely to expand across the Amazon in the near future. The resultant carbon source conditions, directly associated with disturbances, may be essential when considering climate projections and carbon accounting methods MenosTropical forests hold significant amounts of carbon and play a critical role on Earth´s climate system. To date, carbon dynamics over tropical forests have been poorly assessed, especially over vast areas of the tropics that have been affected by some type of disturbance (e.g., selective logging, understory fires, and fragmentation). Understanding the multi-temporal dynamics of carbon stocks over human-modified tropical forests (HMTF) is crucial to close the carbon cycle balance in the tropics. Here, we used multi-temporal and high-spatial resolution airborne LiDAR data to quantify rates of carbon dynamics over a large patch of HMTF in eastern Amazon, Brazil. We described a robust approach to monitor changes in aboveground forest carbon stocks between 2012 and 2018. Our results showed that this particular HMTF lost 0.57 m·yr−1 in mean forest canopy height and 1.38 Mg·C·ha-1 yr-1 of forest carbon between 2012 and 2018. LiDAR-based estimates of Aboveground Carbon Density (ACD) showed progressive loss through the years, from 77.9 Mg·C·ha-1 in 2012 to 53.1 Mg·C·ha-1 in 2018, thus a decrease of 31.8%. Rates of carbon stock changes were negative for all time intervals analyzed, yielding average annual carbon loss rates of -1.34 Mg·C·ha−1·yr−1. This suggests that this HMTF is acting more as a source of carbon than a sink, having great negative implications for carbon emission scenarios in tropical forests. Although more studies of forest dynamics in HMTFs are nece... Mostrar Tudo |
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Thesagro: |
Carbono; Floresta Tropical. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218361/1/remotesensing-12-00430-v2.pdf
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Marc: |
LEADER 02715naa a2200277 a 4500
001 2127189
005 2020-11-30
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/rs12030430$2DOI
100 1 $aMOURA, Y. M. de
245 $aCarbon dynamics in a human-modified tropical forest$ba case study using multi-temporal LiDAR Data.$h[electronic resource]
260 $c2020
520 $aTropical forests hold significant amounts of carbon and play a critical role on Earth´s climate system. To date, carbon dynamics over tropical forests have been poorly assessed, especially over vast areas of the tropics that have been affected by some type of disturbance (e.g., selective logging, understory fires, and fragmentation). Understanding the multi-temporal dynamics of carbon stocks over human-modified tropical forests (HMTF) is crucial to close the carbon cycle balance in the tropics. Here, we used multi-temporal and high-spatial resolution airborne LiDAR data to quantify rates of carbon dynamics over a large patch of HMTF in eastern Amazon, Brazil. We described a robust approach to monitor changes in aboveground forest carbon stocks between 2012 and 2018. Our results showed that this particular HMTF lost 0.57 m·yr−1 in mean forest canopy height and 1.38 Mg·C·ha-1 yr-1 of forest carbon between 2012 and 2018. LiDAR-based estimates of Aboveground Carbon Density (ACD) showed progressive loss through the years, from 77.9 Mg·C·ha-1 in 2012 to 53.1 Mg·C·ha-1 in 2018, thus a decrease of 31.8%. Rates of carbon stock changes were negative for all time intervals analyzed, yielding average annual carbon loss rates of -1.34 Mg·C·ha−1·yr−1. This suggests that this HMTF is acting more as a source of carbon than a sink, having great negative implications for carbon emission scenarios in tropical forests. Although more studies of forest dynamics in HMTFs are necessary to reduce the current remaining uncertainties in the carbon cycle, our results highlight the persistent effects of carbon losses for the study area. HMTFs are likely to expand across the Amazon in the near future. The resultant carbon source conditions, directly associated with disturbances, may be essential when considering climate projections and carbon accounting methods
650 $aAmazonia
650 $aCarbono
650 $aFloresta Tropical
700 1 $aBALZTER, H.
700 1 $aGALVÃO, L. S.
700 1 $aDALAGNOL, R.
700 1 $aESPÍRITO-SANTO, F.
700 1 $aSANTOS, E. G.
700 1 $aGARCIA, M.
700 1 $aBISPO, P. da C.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aSHIMABUKURO, Y. E.
773 $tRemote Sensing$gv. 12, n. 3, Article 430, 2020.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
08/05/2007 |
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Data da última atualização: |
19/01/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
SOARES, E. G. da S.; SILVA, S. C. da; SILVA, H. T. da; LOPES JUNIOR, S. |
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Afiliação: |
EDNEYA GOMES DA SILVA SOARES, bolsista CNPAF; SILVANDO CARLOS DA SILVA, CNPAF; HELOISA TORRES DA SILVA, CNPAF; SERGIO LOPES JUNIOR, CNPAF. |
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Título: |
Banco de dados da coleta de germoplasma de feijão no Brasil para a realização de um SIG. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE, 2007. |
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Páginas: |
p. 431-433. |
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ISBN: |
978-85-17-00031-7 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho é identificar os locais de coleta de feijão em função do mapeamento das áreas em questão. Este processo está sendo realizado através da interface do Sistema de Informações Geográficas (SIG) e do Sistema Gerenciador de Banco de Dados Relacional (SGBR) do software SPRING, para fins de armazenar e recuperar dados geográficos assim como os atributos não-espaciais. |
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Palavras-Chave: |
Banco de dados; GIS; SIG. |
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Thesagro: |
Coleta de Dados; Feijão; Sistema de Informação Geográfica. |
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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/doc/214986/1/sbsr-2011-3.pdf
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Marc: |
LEADER 01181nam a2200241 a 4500
001 1214986
005 2024-01-19
008 2007 bl uuuu u00u1 u #d
020 $a978-85-17-00031-7
100 1 $aSOARES, E. G. da S.
245 $aBanco de dados da coleta de germoplasma de feijão no Brasil para a realização de um SIG.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE$c2007
300 $ap. 431-433.
520 $aO objetivo deste trabalho é identificar os locais de coleta de feijão em função do mapeamento das áreas em questão. Este processo está sendo realizado através da interface do Sistema de Informações Geográficas (SIG) e do Sistema Gerenciador de Banco de Dados Relacional (SGBR) do software SPRING, para fins de armazenar e recuperar dados geográficos assim como os atributos não-espaciais.
650 $aColeta de Dados
650 $aFeijão
650 $aSistema de Informação Geográfica
653 $aBanco de dados
653 $aGIS
653 $aSIG
700 1 $aSILVA, S. C. da
700 1 $aSILVA, H. T. da
700 1 $aLOPES JUNIOR, S.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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