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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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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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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
19/10/2015 |
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Data da última atualização: |
23/02/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
FOCHESATTO, E.; DALMAGO, G. A.; BERGAMASCHI, H.; PINTO, D. G.; GOUVEA, J. A. de; CUNHA, G. R. da; VICARI, M. B.; KOVALESKI, S. |
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Afiliação: |
ELIZANDRO FOCHESATTO; GENEI ANTONIO DALMAGO, CNPT; HOMERO BERGAMASCHI, UFRGS; DANIELE GUTTERRES PINTO; JORGE ALBERTO DE GOUVEA, CNPT; GILBERTO ROCCA DA CUNHA, CNPT; MATHEUS BONI VICARI; SAMUEL KOVALESKI. |
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Título: |
Índice de área das estruturas reprodutivas e eficiência de interceptação da radiação solar em canola sob diferentes doses de nitrogênio. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 19., 2015, Lavras, MG. Anais... Ecofisiologia vegetal, p. 2501-2506. |
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Idioma: |
Português |
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Palavras-Chave: |
Brassica napus L. |
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Thesagro: |
Radiação Solar. |
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Thesaurus NAL: |
canola; solar radiation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/131308/1/ID43274-2015CBAgro-p2501.pdf
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Marc: |
LEADER 00812nam a2200229 a 4500
001 2026699
005 2016-02-23
008 2015 bl uuuu u00u1 u #d
100 1 $aFOCHESATTO, E.
245 $aÍndice de área das estruturas reprodutivas e eficiência de interceptação da radiação solar em canola sob diferentes doses de nitrogênio.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 19., 2015, Lavras, MG. Anais... Ecofisiologia vegetal, p. 2501-2506.$c2506
650 $acanola
650 $asolar radiation
650 $aRadiação Solar
653 $aBrassica napus L
700 1 $aDALMAGO, G. A.
700 1 $aBERGAMASCHI, H.
700 1 $aPINTO, D. G.
700 1 $aGOUVEA, J. A. de
700 1 $aCUNHA, G. R. da
700 1 $aVICARI, M. B.
700 1 $aKOVALESKI, S.
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Registro original: |
Embrapa Trigo (CNPT) |
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