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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
11/04/2002 |
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Data da última atualização: |
11/04/2002 |
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Autoria: |
ROCHA, C. M. C. da; MADEIRA NETTO, J. da S. |
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Título: |
Desarrollo agricola del Cerrado y la contribucion de la investigacion. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: SEMINARIO MANEJO Y UTILIZACION DE PASTOS Y FORRAJES EN SISTEMAS DE PRODUCION ANIMAL, 8., 2002, Barinas. Memorias.... Barinas: Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora, 2002. |
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Páginas: |
p. 50-63. |
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Idioma: |
Espanhol |
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Notas: |
UNELLEZ - Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora. |
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Conteúdo: |
El presente trabajo tiene como objetivo principal describir las alternativas y contribuciones en produccion y produtividad de los sistemas agropecuarias en la region del cerrado brasileiro. Este ecossistema cubre aproximadamente 2.040.000 Km, existe gran diversidad de ambientes, condiciones de baja fertilidad natural y tecnoloia inapropriada en una etapa inicial. Luego se muestra la evolucion de la ocupacion agricola en el cerrado y los avances en crescimiento agricola y sustentabilidad. A continuacion se describen las condiciones ambientales dominantes, descripcion de suelos e tecnologias desarroladas por EMBRAPA-Cerrados y otras instituciones de investigaciones para el desrrollo de este ecossistema. Finalmente se describe la revolucion agricola del Cerrado y su produccion potencial y como conclusion final la tecnologia desarrollada localmente senala la separacion de factores ambientales restrictivos, asi como ganancias continuas de produccion y produtividad en los últimos 25 anos. |
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Palavras-Chave: |
Agricultural development; Brasil; Embrapa Cerrados; Sustainability; Sustentabilidade. |
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Thesagro: |
Cerrado; Desenvolvimento Agrícola; Pesquisa; Tecnologia. |
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Thesaurus Nal: |
Brazil; research; technology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02034naa a2200301 a 4500
001 1564653
005 2002-04-11
008 2002 bl uuuu u00u1 u #d
100 1 $aROCHA, C. M. C. da
245 $aDesarrollo agricola del Cerrado y la contribucion de la investigacion.
260 $c2002
300 $ap. 50-63.
500 $aUNELLEZ - Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora.
520 $aEl presente trabajo tiene como objetivo principal describir las alternativas y contribuciones en produccion y produtividad de los sistemas agropecuarias en la region del cerrado brasileiro. Este ecossistema cubre aproximadamente 2.040.000 Km, existe gran diversidad de ambientes, condiciones de baja fertilidad natural y tecnoloia inapropriada en una etapa inicial. Luego se muestra la evolucion de la ocupacion agricola en el cerrado y los avances en crescimiento agricola y sustentabilidad. A continuacion se describen las condiciones ambientales dominantes, descripcion de suelos e tecnologias desarroladas por EMBRAPA-Cerrados y otras instituciones de investigaciones para el desrrollo de este ecossistema. Finalmente se describe la revolucion agricola del Cerrado y su produccion potencial y como conclusion final la tecnologia desarrollada localmente senala la separacion de factores ambientales restrictivos, asi como ganancias continuas de produccion y produtividad en los últimos 25 anos.
650 $aBrazil
650 $aresearch
650 $atechnology
650 $aCerrado
650 $aDesenvolvimento Agrícola
650 $aPesquisa
650 $aTecnologia
653 $aAgricultural development
653 $aBrasil
653 $aEmbrapa Cerrados
653 $aSustainability
653 $aSustentabilidade
700 1 $aMADEIRA NETTO, J. da S.
773 $tIn: SEMINARIO MANEJO Y UTILIZACION DE PASTOS Y FORRAJES EN SISTEMAS DE PRODUCION ANIMAL, 8., 2002, Barinas. Memorias.... Barinas: Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora, 2002.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
28/08/2015 |
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Data da última atualização: |
30/05/2022 |
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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: |
BERENGUER, E.; GARDNER, T. A.; FERREIRA, J.; ARAGÃO, L. E. O. C.; CAMARGO, P. B.; CERRI, C. E.; DURIGAN, M.; OLIVEIRA JUNIOR, R. C.; VIEIRA, I. C. G.; BARLOW, J. |
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Afiliação: |
Erika Berenguer, Lancaster University; Toby A. Gardner, Stockholm Environment Institute / International Institute for Sustainability; JOICE NUNES FERREIRA, CPATU; Luiz E. O. C. Aragão, University of Exeter / INPE; Plínio B. Camargo, CENA/USP; Carlos E. Cerri, ESALQ/USP; Mariana Durigan, ESALQ/USP; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Ima C. G. Vieira, MPEG; Jos Barlow, Lancaster University / MPEG. |
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Título: |
Developing cost-effective field assessments of carbon stocks in human-modified tropical forests. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plos One, v. 10, n. 8, e0133139, 2015. |
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DOI: |
10.1371/journal.pone.0133139 |
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Idioma: |
Inglês |
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Conteúdo: |
Across the tropics, there is a growing financial investment in activities that aim to reduce emissions from deforestation and forest degradation, such as REDD+. However, most tropical countries lack on-the-ground capacity to conduct reliable and replicable assessments of forest carbon stocks, undermining their ability to secure long-term carbon finance for forest conservation programs. Clear guidance on how to reduce the monetary and time costs of field assessments of forest carbon can help tropical countries to overcome this capacity gap. Here we provide such guidance for cost-effective one-off field assessments of forest carbon stocks. We sampled a total of eight components from four different carbon pools (i.e. aboveground, dead wood, litter and soil) in 224 study plots distributed across two regions of eastern Amazon. For each component we estimated survey costs, contribution to total forest carbon stocks and sensitivity to disturbance. Sampling costs varied thirty-one-fold between the most expensive component, soil, and the least, leaf litter. Large live stems (10 cm DBH), which represented only 15% of the overall sampling costs, was by far the most important component to be assessed, as it stores the largest amount of carbon and is highly sensitive to disturbance. If large stems are not taxonomically identified, costs can be reduced by a further 51%, while incurring an error in aboveground carbon estimates of only 5% in primary forests, but 31% in secondary forests. For rapid assessments, necessary to help prioritize locations for carbon- conservation activities, sampling of stems 20cm DBH without taxonomic identification can predict with confidence (R 2 = 0.85) whether an area is relatively carbon-rich or carbon-poor ? an approach that is 74% cheaper than sampling and identifying all the stems 10cm DBH. We use these results to evaluate the reliability of forest carbon stock estimates provided by the IPCC and FAO when applied to human-modified forests, and to highlight areas where cost savings in carbon stock assessments could be most easily made. MenosAcross the tropics, there is a growing financial investment in activities that aim to reduce emissions from deforestation and forest degradation, such as REDD+. However, most tropical countries lack on-the-ground capacity to conduct reliable and replicable assessments of forest carbon stocks, undermining their ability to secure long-term carbon finance for forest conservation programs. Clear guidance on how to reduce the monetary and time costs of field assessments of forest carbon can help tropical countries to overcome this capacity gap. Here we provide such guidance for cost-effective one-off field assessments of forest carbon stocks. We sampled a total of eight components from four different carbon pools (i.e. aboveground, dead wood, litter and soil) in 224 study plots distributed across two regions of eastern Amazon. For each component we estimated survey costs, contribution to total forest carbon stocks and sensitivity to disturbance. Sampling costs varied thirty-one-fold between the most expensive component, soil, and the least, leaf litter. Large live stems (10 cm DBH), which represented only 15% of the overall sampling costs, was by far the most important component to be assessed, as it stores the largest amount of carbon and is highly sensitive to disturbance. If large stems are not taxonomically identified, costs can be reduced by a further 51%, while incurring an error in aboveground carbon estimates of only 5% in primary forests, but 31% in secondary forests. Fo... Mostrar Tudo |
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Palavras-Chave: |
Estoque de carbono. |
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Thesagro: |
Floresta Tropical. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/128802/1/ERIKAetaL2015.pdf
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Marc: |
LEADER 02873naa a2200265 a 4500
001 2022899
005 2022-05-30
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0133139$2DOI
100 1 $aBERENGUER, E.
245 $aDeveloping cost-effective field assessments of carbon stocks in human-modified tropical forests.$h[electronic resource]
260 $c2015
520 $aAcross the tropics, there is a growing financial investment in activities that aim to reduce emissions from deforestation and forest degradation, such as REDD+. However, most tropical countries lack on-the-ground capacity to conduct reliable and replicable assessments of forest carbon stocks, undermining their ability to secure long-term carbon finance for forest conservation programs. Clear guidance on how to reduce the monetary and time costs of field assessments of forest carbon can help tropical countries to overcome this capacity gap. Here we provide such guidance for cost-effective one-off field assessments of forest carbon stocks. We sampled a total of eight components from four different carbon pools (i.e. aboveground, dead wood, litter and soil) in 224 study plots distributed across two regions of eastern Amazon. For each component we estimated survey costs, contribution to total forest carbon stocks and sensitivity to disturbance. Sampling costs varied thirty-one-fold between the most expensive component, soil, and the least, leaf litter. Large live stems (10 cm DBH), which represented only 15% of the overall sampling costs, was by far the most important component to be assessed, as it stores the largest amount of carbon and is highly sensitive to disturbance. If large stems are not taxonomically identified, costs can be reduced by a further 51%, while incurring an error in aboveground carbon estimates of only 5% in primary forests, but 31% in secondary forests. For rapid assessments, necessary to help prioritize locations for carbon- conservation activities, sampling of stems 20cm DBH without taxonomic identification can predict with confidence (R 2 = 0.85) whether an area is relatively carbon-rich or carbon-poor ? an approach that is 74% cheaper than sampling and identifying all the stems 10cm DBH. We use these results to evaluate the reliability of forest carbon stock estimates provided by the IPCC and FAO when applied to human-modified forests, and to highlight areas where cost savings in carbon stock assessments could be most easily made.
650 $aFloresta Tropical
653 $aEstoque de carbono
700 1 $aGARDNER, T. A.
700 1 $aFERREIRA, J.
700 1 $aARAGÃO, L. E. O. C.
700 1 $aCAMARGO, P. B.
700 1 $aCERRI, C. E.
700 1 $aDURIGAN, M.
700 1 $aOLIVEIRA JUNIOR, R. C.
700 1 $aVIEIRA, I. C. G.
700 1 $aBARLOW, J.
773 $tPlos One$gv. 10, n. 8, e0133139, 2015.
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Embrapa Amazônia Oriental (CPATU) |
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