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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
18/08/2016 |
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Data da última atualização: |
24/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PIPONIOT, C.; CABON, A.; DESCROIX, L.; DOURDAIN, A.; MAZZEI, L.; OULIAC, B.; RUTISHAUSER, E.; SIST, P.; HÉRAULT, B. |
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Afiliação: |
Camille Piponiot, Université de la Guyane; Antoine Cabon, Centre Tecnològic Forestal de Catalunya; Laurent Descroix, ONF-Guyane, Réserve de Montabo; Aurélie Dourdain, CIRAD; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Benjamin Ouliac, Guyane Energie Climat; Ervan Rutishauser, CarboForExpert; Plinio Sist, CIRAD; Bruno Hérault, CIRAD. |
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Título: |
A methodological framework to assess the carbon balance of tropical managed forests. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Carbon Balance and Management, v. 11, n. 1, Dec. 2016. |
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DOI: |
10.1186/s13021-016-0056-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions MenosBackground: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclus... Mostrar Tudo |
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Palavras-Chave: |
Ciclo do carbono; Error propagation; Production forests; Selective logging. |
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Thesagro: |
Floresta. |
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Thesaurus Nal: |
Amazonia; carbon cycle. |
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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/146542/1/10.1186-s13021-016-0056-7.pdf
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Marc: |
LEADER 02586naa a2200313 a 4500
001 2051226
005 2022-05-24
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1186/s13021-016-0056-7$2DOI
100 1 $aPIPONIOT, C.
245 $aA methodological framework to assess the carbon balance of tropical managed forests.$h[electronic resource]
260 $c2016
520 $aBackground: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions
650 $aAmazonia
650 $acarbon cycle
650 $aFloresta
653 $aCiclo do carbono
653 $aError propagation
653 $aProduction forests
653 $aSelective logging
700 1 $aCABON, A.
700 1 $aDESCROIX, L.
700 1 $aDOURDAIN, A.
700 1 $aMAZZEI, L.
700 1 $aOULIAC, B.
700 1 $aRUTISHAUSER, E.
700 1 $aSIST, P.
700 1 $aHÉRAULT, B.
773 $tCarbon Balance and Management$gv. 11, n. 1, Dec. 2016.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
01/11/2019 |
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Data da última atualização: |
01/11/2019 |
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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: |
BORTOLI, M.; KUNZ, A.; PRÁ, M. C. de; SILVA, M. L. B. da; CÉ, A.; SOARES, H. M. |
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Afiliação: |
MARCELO BORTOLI, UTFPR; AIRTON KUNZ, CNPSA; MARINA CELANT DE PRÁ, UTFPR; MARCIO LUIS BUSI DA SILVA; ANA CÉ, UTFPR; HUGO MOREIRA SOARES, UFSC. |
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Título: |
Simultaneous removal of nitrogen and organic carbon from swine wastewater using the pre-denitrification/nitrification process. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista Ambiente & Água, v.14, n. 2, e2241, 2019. |
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DOI: |
10.4136/ambi-agua.2241. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Wastewater from confined animal feeding operations (CAFOs) can interfere significantly with the natural nitrogen and phosphorus balance in the environment if not treated adequately prior to disposal. In this work, a modified Lutzak-Ettinger (MLE) consisting of sequential predenitrification/ nitrification was used to determine the effects of nutrient loading rates and hydraulic retention times (HRT) on total nitrogen (TN) and organic carbon (TOC) removal from swine wastewater. MLE reactor was continuously fed swine wastewater for over 205 days using different recycle ratios (Rr) and HRT. Higher TN and TOC removal efficiencies (90.7% and 96.1%, respectively) were obtained when recycling effluent from the nitrification tank (4.5:1) combined with effluent from the final clarifier (1:1). Removal efficiencies of 96% for TOC and 90% for TN were obtained for the maximum loading rates of 0.56 gTN L-1d-1 and 2.15 g TOC L-1d-1, respectively. TN and TOC removal rates were achieved with HRT in as little as 3.5 days. Overall, MLE was a robust bioprocess withstanding variations in wastewater physical-chemical composition and/or changes in operational conditions without significant impairment of N and TOC removal efficiencies. |
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Palavras-Chave: |
High organic rate. |
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Thesagro: |
Águas Residuais; Dejeto; Desnitrificação; Suinocultura. |
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Thesaurus NAL: |
Ammonia; Denitrification; Swine; Wastewater treatment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02119naa a2200301 a 4500
001 2113778
005 2019-11-01
008 2019 bl uuuu u00u1 u #d
024 7 $a10.4136/ambi-agua.2241.$2DOI
100 1 $aBORTOLI, M.
245 $aSimultaneous removal of nitrogen and organic carbon from swine wastewater using the pre-denitrification/nitrification process.$h[electronic resource]
260 $c2019
520 $aAbstract: Wastewater from confined animal feeding operations (CAFOs) can interfere significantly with the natural nitrogen and phosphorus balance in the environment if not treated adequately prior to disposal. In this work, a modified Lutzak-Ettinger (MLE) consisting of sequential predenitrification/ nitrification was used to determine the effects of nutrient loading rates and hydraulic retention times (HRT) on total nitrogen (TN) and organic carbon (TOC) removal from swine wastewater. MLE reactor was continuously fed swine wastewater for over 205 days using different recycle ratios (Rr) and HRT. Higher TN and TOC removal efficiencies (90.7% and 96.1%, respectively) were obtained when recycling effluent from the nitrification tank (4.5:1) combined with effluent from the final clarifier (1:1). Removal efficiencies of 96% for TOC and 90% for TN were obtained for the maximum loading rates of 0.56 gTN L-1d-1 and 2.15 g TOC L-1d-1, respectively. TN and TOC removal rates were achieved with HRT in as little as 3.5 days. Overall, MLE was a robust bioprocess withstanding variations in wastewater physical-chemical composition and/or changes in operational conditions without significant impairment of N and TOC removal efficiencies.
650 $aAmmonia
650 $aDenitrification
650 $aSwine
650 $aWastewater treatment
650 $aÁguas Residuais
650 $aDejeto
650 $aDesnitrificação
650 $aSuinocultura
653 $aHigh organic rate
700 1 $aKUNZ, A.
700 1 $aPRÁ, M. C. de
700 1 $aSILVA, M. L. B. da
700 1 $aCÉ, A.
700 1 $aSOARES, H. M.
773 $tRevista Ambiente & Água$gv.14, n. 2, e2241, 2019.
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Embrapa Suínos e Aves (CNPSA) |
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