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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
05/11/2014 |
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Data da última atualização: |
18/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERENGUER, E.; FERREIRA, J.; GARDNER, T. A.; ARAGÃO, L. E. O. C.; CAMARGO, P. B. de; CERRI, C. E.; DURIGAN, M.; OLIVEIRA JUNIOR, R. C. de; VIEIRA, I. C. G.; BARLOW, J. |
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Afiliação: |
ERIKA BERENGUER, Lancaster University; JOICE NUNES FERREIRA, CPATU; TOBY ALAN GARDNER, University of Cambridge / International Institute for Sustainability / Stockholm Environment Institute; LUIZ EDUARDO OLIVEIRA CRUZ ARAGÃO, University of Exeter / INPE; PLÍNIO BARBOSA DE CAMARGO, CENA/USP; CARLOS EDUARDO CERRI, ESALQ/USP; MARIANA DURIGAN, ESALQ/USP; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; IMA CELIA GUIMARÃES VIEIRA, MPEG; JOS BARLOW, Lancaster University / MPEG. |
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Título: |
A large-scale field assessment of carbon stocks in human-modified tropical forests. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Global Change Biology, v. 20, n. 12, p. 3713-3726, 2014. |
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DOI: |
10.1111/gcb.12627 |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical rainforests store enormous amounts of carbon, the protection of which represents a vital component of efforts to mitigate global climate change. Currently, tropical forest conservation, science, policies, and climate mitigation actions focus predominantly on reducing carbon emissions from deforestation alone. However, every year vast areas of the humid tropics are disturbed by selective logging, understory fires, and habitat fragmentation. There is an urgent need to understand the effect of such disturbances on carbon stocks, and how stocks in disturbed forests compare to those found in undisturbed primary forests as well as in regenerating secondary forests. Here, we present the results of the largest field study to date on the impacts of human disturbances on above and belowground carbon stocks in tropical forests. Live vegetation, the largest carbon pool, was extremely sensitive to disturbance: forests that experienced both selective logging and understory fires stored, on average, 40% less aboveground carbon than undisturbed forests and were structurally similar to secondary forests. Edge effects also played an important role in explaining variability in aboveground carbon stocks of disturbed forests. Results indicate a potential rapid recovery of the dead wood and litter carbon pools, while soil stocks (0?30 cm) appeared to be resistant to the effects of logging and fire. Carbon loss and subsequent emissions due to human disturbances remain largely unaccounted for in greenhouse gas inventories, but by comparing our estimates of depleted carbon stocks in disturbed forests with Brazilian government assessments of the total forest area annually disturbed in the Amazon, we show that these emissions could represent up to 40% of the carbon loss from deforestation in the region. We conclude that conservation programs aiming to ensure the long-term permanence of forest carbon stocks, such as REDD+, will remain limited in their success unless they effectively avoid degradation as well as deforestation. MenosTropical rainforests store enormous amounts of carbon, the protection of which represents a vital component of efforts to mitigate global climate change. Currently, tropical forest conservation, science, policies, and climate mitigation actions focus predominantly on reducing carbon emissions from deforestation alone. However, every year vast areas of the humid tropics are disturbed by selective logging, understory fires, and habitat fragmentation. There is an urgent need to understand the effect of such disturbances on carbon stocks, and how stocks in disturbed forests compare to those found in undisturbed primary forests as well as in regenerating secondary forests. Here, we present the results of the largest field study to date on the impacts of human disturbances on above and belowground carbon stocks in tropical forests. Live vegetation, the largest carbon pool, was extremely sensitive to disturbance: forests that experienced both selective logging and understory fires stored, on average, 40% less aboveground carbon than undisturbed forests and were structurally similar to secondary forests. Edge effects also played an important role in explaining variability in aboveground carbon stocks of disturbed forests. Results indicate a potential rapid recovery of the dead wood and litter carbon pools, while soil stocks (0?30 cm) appeared to be resistant to the effects of logging and fire. Carbon loss and subsequent emissions due to human disturbances rem... Mostrar Tudo |
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Thesagro: |
Biomassa; Floresta Secundaria; Solo; Vegetação. |
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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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Marc: |
LEADER 02893nga a2200301 a 4500
001 1999228
005 2022-10-18
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1111/gcb.12627$2DOI
100 1 $aBERENGUER, E.
245 $aA large-scale field assessment of carbon stocks in human-modified tropical forests.
260 $c2014
520 $aTropical rainforests store enormous amounts of carbon, the protection of which represents a vital component of efforts to mitigate global climate change. Currently, tropical forest conservation, science, policies, and climate mitigation actions focus predominantly on reducing carbon emissions from deforestation alone. However, every year vast areas of the humid tropics are disturbed by selective logging, understory fires, and habitat fragmentation. There is an urgent need to understand the effect of such disturbances on carbon stocks, and how stocks in disturbed forests compare to those found in undisturbed primary forests as well as in regenerating secondary forests. Here, we present the results of the largest field study to date on the impacts of human disturbances on above and belowground carbon stocks in tropical forests. Live vegetation, the largest carbon pool, was extremely sensitive to disturbance: forests that experienced both selective logging and understory fires stored, on average, 40% less aboveground carbon than undisturbed forests and were structurally similar to secondary forests. Edge effects also played an important role in explaining variability in aboveground carbon stocks of disturbed forests. Results indicate a potential rapid recovery of the dead wood and litter carbon pools, while soil stocks (0?30 cm) appeared to be resistant to the effects of logging and fire. Carbon loss and subsequent emissions due to human disturbances remain largely unaccounted for in greenhouse gas inventories, but by comparing our estimates of depleted carbon stocks in disturbed forests with Brazilian government assessments of the total forest area annually disturbed in the Amazon, we show that these emissions could represent up to 40% of the carbon loss from deforestation in the region. We conclude that conservation programs aiming to ensure the long-term permanence of forest carbon stocks, such as REDD+, will remain limited in their success unless they effectively avoid degradation as well as deforestation.
650 $aAmazonia
650 $aBiomassa
650 $aFloresta Secundaria
650 $aSolo
650 $aVegetação
700 1 $aFERREIRA, J.
700 1 $aGARDNER, T. A.
700 1 $aARAGÃO, L. E. O. C.
700 1 $aCAMARGO, P. B. de
700 1 $aCERRI, C. E.
700 1 $aDURIGAN, M.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aVIEIRA, I. C. G.
700 1 $aBARLOW, J.
773 $tGlobal Change Biology$gv. 20, n. 12, p. 3713-3726, 2014.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
21/11/2013 |
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Data da última atualização: |
21/11/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
STEINMETZ, S.; MAGALHAES JUNIOR, A. M. de; FAGUNDES, P. R. R.; PETRINI, J. A.; ALMEIDA, I. R. de; SCIVITTARO, W. B.; RANDIN, B.; PRESTES, S. D.; SILVA, M. F. da. |
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Afiliação: |
SILVIO STEINMETZ, CPACT; ARIANO MARTINS DE MAGALHAES JUNIOR, CPACT; PAULO RICARDO REIS FAGUNDES, CPACT; JOSE ALBERTO PETRINI, CPACT; IVAN RODRIGUES DE ALMEIDA, CPACT; WALKYRIA BUENO SCIVITTARO, CPACT; Bernadete Radin, Pesquisadora da Fepagro; Solimar Damé Prestes, 8º DISME/Inmet; Matheus Fernandes da Silva, Bolsista da Embrapa Clima Temperado. |
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Título: |
Uso de graus-dia para estimar a data de ocorrência dos principais estádios de desenvolvimento de subgrupos de cultivares de arroz irrigado no Rio Grande do sul. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai, 2013. |
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Idioma: |
Português |
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Palavras-Chave: |
Fases de desenvolvimento da planta; Oryza sativa L; Soma térmica; Temperatura do ar. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/92840/1/trab-1246-79.pdf
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Marc: |
LEADER 00964nam a2200241 a 4500
001 1971765
005 2013-11-21
008 2013 bl uuuu u00u1 u #d
100 1 $aSTEINMETZ, S.
245 $aUso de graus-dia para estimar a data de ocorrência dos principais estádios de desenvolvimento de subgrupos de cultivares de arroz irrigado no Rio Grande do sul.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai$c2013
653 $aFases de desenvolvimento da planta
653 $aOryza sativa L
653 $aSoma térmica
653 $aTemperatura do ar
700 1 $aMAGALHAES JUNIOR, A. M. de
700 1 $aFAGUNDES, P. R. R.
700 1 $aPETRINI, J. A.
700 1 $aALMEIDA, I. R. de
700 1 $aSCIVITTARO, W. B.
700 1 $aRANDIN, B.
700 1 $aPRESTES, S. D.
700 1 $aSILVA, M. F. da
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