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| 21. |  | SÁ, T. D. de A.; FREIRE, G. S.; COIMBRA, H. M.; ARAUJO, A. C. de. Características espectrais da radiação solar em Igarapé-Açu, PA: variáveis associadas a respostas biológicas. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 11.; REUNIÃO LATINO AMERICANO DE AGROMETEOROLOGIA, 2., 1999, Florianópolis. Programa e resumo de anais. Florianópolis: Sociedade Brasileira de Agrometeorologia, 1999. p. 219. CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 23. | | OLIVEIRA, B. C. S. de; ARAUJO, A. C. de; OLIVEIRA, L. R. de; MANZI, A. O. Caracterização da variação diária e sazonal do CO2 atmosférico em cultivo da palma de óleo com híbridos interespecíficos (Elaeis guineensis X Elaeis oleifera) no leste da Amazônia. In: WORKSHOP BRASILEIRO DE MICROMETEOROLOGIA, 9., 2015, Santa Maria, RS. Anais. Santa Maria, RS: UFSM, 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 25. | | ARAÚJO, A. C. de; OLIVEIRA, V. C. de; SÁ, T. D. de A.; BRIENZA JUNIOR, S. Aspecto biofísico de vegetação secundária enriquecida com leguminosas de rápido crescimento no nordeste do Pará: composição espectral da luz. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA PARA O PROGRESSO DA CIÊNCIA, 49., 1997, Belo Horizonte, MG. Anais... Belo Horizonte: SBPC: UFMG, 1997. v. 2, p. 3-4.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 26. | | ARAUJO, A. C. de; SÁ, T. D. de A.; FRAZÃO, R. R.; SOMMER, R. Aplicação de técnicas de estatística descritiva à análise da precipitação sob dossel em vegetação secundária jovem no nordeste do Pará. In: SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA FCAP, 7.; SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 1., 1997, Belém, PA. Resumos. Belém, PA: FCAP, 1997. p. 98.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 27. | | ARAUJO, A. C. de; COIMBRA, H. M.; MOLLER, M. R. F.; SÁ, T. D. de A. Aspectos térmicos do solo em sistemas rotacionais de agricultura no nordeste do Pará. In: CONGRESSO BRASILEIRO DE INICIAÇÃO CIENTÍFICA EM CIÊNCIAS AGRÁRIAS, 16., 1996, Santa Maria, RS. Os desafios da iniciação científica para o desenvolvimento social, frente à globalização: resumos. Santa Maria: UFSM, 1997. p. 209.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 28. | | FREIRE, G. S.; COIMBRA, H. M.; ARAUJO, A. C. de; SÁ, T. D. de A. Caracterização espectral da radiação solar em dias de baixa nebulosidade em duas localidades na Amazônia Oriental. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA (AVALIAÇÃO 1997-1998), 8., 1998, Belém, PA. Resumos. Belém, PA: FCAP-Unidade de Apoio à Pesquisa e Pós-Graduação, 1998. p. 180.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 31. | | ARAÚJO, A. C. de; BELTRÃO, N. E. de M.; BRUNO, G. B.; MORAIS, M. dos S. Cultivares, épocas de plantio e componentes da produção no consórcio de algodão e amendoim. Revista Brasileira de Engenharia Agrícola e Ambiental, v.10,n.2,abr.-jun.,357-363,2006.| Biblioteca(s): Embrapa Algodão. |
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| 36. | | SÁ, T. D. de A.; ARAUJO, A. C. de; MÖLLER, M. R. F.; HOLSCHER, D.; BASTOS, T. X. Chuva sob dossel ao longo de sucessões vegetais: capoeiras do nordeste do Pará. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 11.; REUNIÃO LATINO AMERICANA DE AGROMETEOROLOGIA, 2., 1999, Florianópolis. Programa e resumo de anais. Florianópolis: Sociedade Brasileira de Agrometeorologia, 1999. p. 506. CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 37. | | DIAS, A. L. L.; MARTORANO, L. G.; ARAUJO, A. C. de; SOUZA, A. M. L. de; TATIANE, J. Influência do regime pluvial em superfícies de floresta e área urbana na Amazônia Oriental. In: SIMPÓSIO DE ESTUDOS E PESQUISAS EM CIÊNCIAS AMBIENTAIS NA AMAZÔNIA, 6., 2017, Belém, PA. Anais: resumos aprovados - 2017. Belém, PA: UEPA, 2017. p. 125.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 38. | | OLIVEIRA, B. C. S. de; ARAUJO, A. C. de; SOUZA, G. N. B. de; TRINDADE, I. A. Caracterização da variação do CO2 atmosférico em sistema ILPF no leste da Amazônia. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 20.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA EMBRAPA AMAZÔNIA ORIENTAL, 4., 2016, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2016. p. 287-291.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 39. | | OLIVEIRA, B. C. S. de; ARAUJO, A. C. de; PINTO, C. A. D.; SOUZA, C. M. de A. Caracterização da variação sazonal do CO2 atmosférico em sistema ILPF no leste da Amazônia. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 21., 2017, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2017.| Biblioteca(s): Embrapa Amazônia Oriental. |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/12/2023 |
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Data da última atualização: |
04/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ASPEREN, H. van; ALVES-OLIVEIRA, J. R.; WARNEKE, T.; FORSBERG, B.; ARAUJO, A. C. de; NOTHOLT, J. |
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Afiliação: |
HELLA VAN ASPEREN, University of Bremen; JOÃO RAFAEL ALVES-OLIVEIRA, INPA; THORSTEN WARNEKE, University of Bremen; BRUCE FORSBERG, INPA; ALESSANDRO CARIOCA DE ARAUJO, CPATU; JUSTUS NOTHOLT, University of Bremen. |
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Título: |
The role of termite CH4 emissions on the ecosystem scale: a case study in the Amazon rainforest. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biogeosciences, v. 18, p. 2609-2625, 2021. |
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DOI: |
https://doi.org/10.5194/bg-18-2609-2021 |
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Idioma: |
Inglês |
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Conteúdo: |
The magnitude of termite methane (CH4) emissions is still an uncertain part of the global CH4 budget and current emission estimates are based on limited field studies. We present in situ CH4 emission measurements of termite mounds and termite mound subsamples performed in the Amazon rainforest. Emissions from five termite mounds of the species Neocapritermes brasiliensis were measured by use of a large flux chamber connected to a portable gas analyser measuring CH4 and CO2. In addition, the emissions of mound subsamples were measured, after which the termites were counted so that a termite CH4 and CO2 emission factor could be determined. Mound emissions were found to range between 17.0 and for CH4 and between 1.1 and for CO2. A termite emission factor of was found, which is almost twice as high as the only other reported value for the Amazon. By combining mound emission measurements with the termite emission factor, colony sizes could be estimated, which were found to range between 55?125 thousand individuals. Estimates were similar to literature values, and we therefore propose that this method can be used as a quick non-intrusive method to estimate termite colony size in the field. The role of termites in the ecosystem's CH4 budget was evaluated by use of two approaches. Termite mound emission values were combined with local mound density numbers, leading to an estimate of , on average, emitted by termite mounds. In addition, the termite CH4 emission factor from this study was combined with termite biomass numbers, resulting in an estimate of termite-emitted CH4 of . Considering the relatively low net CH4 emissions previously measured at this ecosystem, we expect that termites play an important role in the CH4 budget of this terra firme ecosystem. MenosThe magnitude of termite methane (CH4) emissions is still an uncertain part of the global CH4 budget and current emission estimates are based on limited field studies. We present in situ CH4 emission measurements of termite mounds and termite mound subsamples performed in the Amazon rainforest. Emissions from five termite mounds of the species Neocapritermes brasiliensis were measured by use of a large flux chamber connected to a portable gas analyser measuring CH4 and CO2. In addition, the emissions of mound subsamples were measured, after which the termites were counted so that a termite CH4 and CO2 emission factor could be determined. Mound emissions were found to range between 17.0 and for CH4 and between 1.1 and for CO2. A termite emission factor of was found, which is almost twice as high as the only other reported value for the Amazon. By combining mound emission measurements with the termite emission factor, colony sizes could be estimated, which were found to range between 55?125 thousand individuals. Estimates were similar to literature values, and we therefore propose that this method can be used as a quick non-intrusive method to estimate termite colony size in the field. The role of termites in the ecosystem's CH4 budget was evaluated by use of two approaches. Termite mound emission values were combined with local mound density numbers, leading to an estimate of , on average, emitted by termite mounds. In addition, the termite CH4 emission factor from this study... Mostrar Tudo |
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Thesagro: |
Floresta Tropical. |
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Thesaurus NAL: |
Forestry. |
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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/1159139/1/The-role-of-termite-CH4.pdf
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Marc: |
LEADER 02442naa a2200217 a 4500
001 2159139
005 2023-12-04
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5194/bg-18-2609-2021$2DOI
100 1 $aASPEREN, H. van
245 $aThe role of termite CH4 emissions on the ecosystem scale$ba case study in the Amazon rainforest.$h[electronic resource]
260 $c2021
520 $aThe magnitude of termite methane (CH4) emissions is still an uncertain part of the global CH4 budget and current emission estimates are based on limited field studies. We present in situ CH4 emission measurements of termite mounds and termite mound subsamples performed in the Amazon rainforest. Emissions from five termite mounds of the species Neocapritermes brasiliensis were measured by use of a large flux chamber connected to a portable gas analyser measuring CH4 and CO2. In addition, the emissions of mound subsamples were measured, after which the termites were counted so that a termite CH4 and CO2 emission factor could be determined. Mound emissions were found to range between 17.0 and for CH4 and between 1.1 and for CO2. A termite emission factor of was found, which is almost twice as high as the only other reported value for the Amazon. By combining mound emission measurements with the termite emission factor, colony sizes could be estimated, which were found to range between 55?125 thousand individuals. Estimates were similar to literature values, and we therefore propose that this method can be used as a quick non-intrusive method to estimate termite colony size in the field. The role of termites in the ecosystem's CH4 budget was evaluated by use of two approaches. Termite mound emission values were combined with local mound density numbers, leading to an estimate of , on average, emitted by termite mounds. In addition, the termite CH4 emission factor from this study was combined with termite biomass numbers, resulting in an estimate of termite-emitted CH4 of . Considering the relatively low net CH4 emissions previously measured at this ecosystem, we expect that termites play an important role in the CH4 budget of this terra firme ecosystem.
650 $aForestry
650 $aFloresta Tropical
700 1 $aALVES-OLIVEIRA, J. R.
700 1 $aWARNEKE, T.
700 1 $aFORSBERG, B.
700 1 $aARAUJO, A. C. de
700 1 $aNOTHOLT, J.
773 $tBiogeosciences$gv. 18, p. 2609-2625, 2021.
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