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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
18/09/2017 |
Data da última atualização: |
22/12/2021 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
OLIVEIRA, R. R. S. de; SILVA, M. G. L. da; NARVAES, I. da S.; CORDEIRO, T. F.; VALERIANO, D. M.; GOMES, A. R.; ADAMI, M.; FREITAS, L. J. M. de. |
Afiliação: |
Rodrigo Rafael Souza de Oliveira, INPE-CRA; Marília Gabriela Lopes da Silva, INPE-CRA; Igor da Silva Narvaes, INPE-CRA; Tássio Franco Cordeiro, INPE-CRA; Dalton Morisson Valeriano, INPE; Alessandra Rodrigues Gomes, INPE-CRA; Marcos Adami, INPE-CRA; LUCAS JOSE MAZZEI DE FREITAS, CPATU. |
Título: |
Detecção de padrões espaciais ligados à exploração florestal madeireira na Amazônia Legal: o caso da COOMFLONA, na Floresta Nacional do Tapajós. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... São José dos Campos: INPE, 2017. |
Páginas: |
p. 2216-2223. |
Idioma: |
Português |
Conteúdo: |
For the protection of Amazon forest remnants, it is fundamental to know how the processes of forest exploitation occur. In this sense, it is necessary to formulate methodologies that aim at the optimization and accuracy of the mappings related to the selective cutting of forest individuals for commercial purposes. Thus, this work presents the results obtained through the application of the mapping methodology developed in DETEX project, allied to geotechnology and geostatistical methods, aiming at the identification of forest exploitation patterns related to wood selective cutting in COOMFLONA of 2013, 2014 and 2015. According to the results, logging began in 2013 with the installation of storage and infrastructure yards in the north of the area, demonstrating that the applied technique was effective in mapping the area''''''''s exploration dynamics. Subsequently, the infrastructure was installed towards the south of the area, followed by exploration. Finally, in 2015 one can see that the exploration activities were concentrated in the south of the area. During the analyzed period, results related to the spatial autocorrelation values of the Moran Local Index, as well as the surface map of forest exploitation density by interpolation by the Kernel method, showed an intense dynamics related to the implantation of storage yards and road infrastructure of forest exploitation. |
Palavras-Chave: |
Manejo florestal; Processamento de imagem. |
Thesagro: |
Sensoriamento Remoto. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163917/1/galoa-proceedings-sbsr-60014-deteccao-de-padr.pdf
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Marc: |
LEADER 02258nam a2200241 a 4500 001 2075763 005 2021-12-22 008 2017 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, R. R. S. de 245 $aDetecção de padrões espaciais ligados à exploração florestal madeireira na Amazônia Legal$bo caso da COOMFLONA, na Floresta Nacional do Tapajós.$h[electronic resource] 260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais... São José dos Campos: INPE$c2017 300 $ap. 2216-2223. 520 $aFor the protection of Amazon forest remnants, it is fundamental to know how the processes of forest exploitation occur. In this sense, it is necessary to formulate methodologies that aim at the optimization and accuracy of the mappings related to the selective cutting of forest individuals for commercial purposes. Thus, this work presents the results obtained through the application of the mapping methodology developed in DETEX project, allied to geotechnology and geostatistical methods, aiming at the identification of forest exploitation patterns related to wood selective cutting in COOMFLONA of 2013, 2014 and 2015. According to the results, logging began in 2013 with the installation of storage and infrastructure yards in the north of the area, demonstrating that the applied technique was effective in mapping the area''''''''s exploration dynamics. Subsequently, the infrastructure was installed towards the south of the area, followed by exploration. Finally, in 2015 one can see that the exploration activities were concentrated in the south of the area. During the analyzed period, results related to the spatial autocorrelation values of the Moran Local Index, as well as the surface map of forest exploitation density by interpolation by the Kernel method, showed an intense dynamics related to the implantation of storage yards and road infrastructure of forest exploitation. 650 $aSensoriamento Remoto 653 $aManejo florestal 653 $aProcessamento de imagem 700 1 $aSILVA, M. G. L. da 700 1 $aNARVAES, I. da S. 700 1 $aCORDEIRO, T. F. 700 1 $aVALERIANO, D. M. 700 1 $aGOMES, A. R. 700 1 $aADAMI, M. 700 1 $aFREITAS, L. J. M. de
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Roraima. |
Data corrente: |
17/11/2020 |
Data da última atualização: |
17/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, C. V. J.; ARAGÃO, L. E. O. C.; YOUNG, P. J.; ESPIRITO-SANTO, F.; BERENGUER, E.; ANDERSON, L. O.; BRASIL, I.; PONTES-LOPES, A.; FERREIRA, J. N.; WITHEY, K.; FRANÇA, F.; GRAÇA, P. M. L. A.; KIRSTEN, L.; XAUD, H. A. M.; SALIMON, C.; SCARANELLO, M. A.; CASTRO, B.; SEIXAS, M.; FARIAS, R.; BARLOW, J. |
Afiliação: |
Camila V. J. Silva, Lancaster University; Luiz E. O. C. Aragão, INPE / University of Exeter; Paul J. Young, Lancaster University; Fernando Espirito-Santo, University of Leicester; Erika Berenguer, Lancaster University / University of Oxford; Liana O. Anderson, CEMADEN; Izaias Brasil, UEMA; Aline Pontes-Lopes, INPE; JOICE NUNES FERREIRA, CPATU; Kieran Withey, Lancaster University; Filipe França, Lancaster University; Paulo M. L. A. Graça, INPA; Leticia Kirsten, INPA; HARON ABRAHIM MAGALHAES XAUD, CPAF-RR; Cleber Salimon, Universidade Estadual da Paraíba; Marcos A. Scaranello, COLABORADOR CNPTIA; Bruno Castro, IMAFLORA; Marina Seixas, COLABORADORA CPATU; Renato Farias, Instituto Centro de Vida; Jos Barlow, Lancaster University / UFLA. |
Título: |
Estimating the multi-decadal carbon deficit of burned Amazonian forests. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Environmental Research Letters, v. 15, Article 114023, 2020. |
DOI: |
https://doi.org/10.1088/1748-9326/abb62c |
Idioma: |
Inglês |
Conteúdo: |
Wildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At present, Brazil's National Determined Contribution (NDC) for emissions fails to consider forest fires as a significant source, even though these are likely to make a substantial and long-term impact on the net carbon balance of Amazonia. Considering long-term post-fire necromass decomposition and vegetation regrowth is crucial for improving global carbon budget estimates and national greenhouse gases (GHG) inventories for tropical forest countries. MenosWildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At pre... Mostrar Tudo |
Thesagro: |
Absorção; Caule; Combustão; Floresta Tropical; Incêndio Florestal; Mortalidade. |
Thesaurus NAL: |
Combustion; Tropical forests; Wildfires. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217856/1/Silva-2020-Environ.-Res.-Lett.-15-114023.pdf
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Marc: |
LEADER 03226naa a2200469 a 4500 001 2126660 005 2020-11-17 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1088/1748-9326/abb62c$2DOI 100 1 $aSILVA, C. V. J. 245 $aEstimating the multi-decadal carbon deficit of burned Amazonian forests.$h[electronic resource] 260 $c2020 520 $aWildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At present, Brazil's National Determined Contribution (NDC) for emissions fails to consider forest fires as a significant source, even though these are likely to make a substantial and long-term impact on the net carbon balance of Amazonia. Considering long-term post-fire necromass decomposition and vegetation regrowth is crucial for improving global carbon budget estimates and national greenhouse gases (GHG) inventories for tropical forest countries. 650 $aCombustion 650 $aTropical forests 650 $aWildfires 650 $aAbsorção 650 $aCaule 650 $aCombustão 650 $aFloresta Tropical 650 $aIncêndio Florestal 650 $aMortalidade 700 1 $aARAGÃO, L. E. O. C. 700 1 $aYOUNG, P. J. 700 1 $aESPIRITO-SANTO, F. 700 1 $aBERENGUER, E. 700 1 $aANDERSON, L. O. 700 1 $aBRASIL, I. 700 1 $aPONTES-LOPES, A. 700 1 $aFERREIRA, J. N. 700 1 $aWITHEY, K. 700 1 $aFRANÇA, F. 700 1 $aGRAÇA, P. M. L. A. 700 1 $aKIRSTEN, L. 700 1 $aXAUD, H. A. M. 700 1 $aSALIMON, C. 700 1 $aSCARANELLO, M. A. 700 1 $aCASTRO, B. 700 1 $aSEIXAS, M. 700 1 $aFARIAS, R. 700 1 $aBARLOW, J. 773 $tEnvironmental Research Letters$gv. 15, Article 114023, 2020.
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