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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
06/11/2008 |
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Data da última atualização: |
16/03/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MACEDO, M. O.; RESENDE, A. S. de; GARCIA, P. C.; BODDEY, R. M.; JANTALIA, C. P.; URQUIAGA, S.; CAMPELLO, E. F. C.; FRANCO, A. A. |
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Afiliação: |
M. O. Macedo, UFRRJ; Alexander Silva de Resende, Embrapa Agrobiologia; P. C. Garcia, UFRRJ; Robert Michael Boddey, Embrapa Agrobiologia; Claudia Pozzi Jantalia, Embrapa Agrobiologia; Segundo Urquiaga, Embrapa Agrobiologia; Eduardo Francia Carneiro Campello, Embrapa Agrobiologia; Avílio Antonio Franco, Embrapa Agrobiologia. |
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Título: |
Changes in soil C and N stocks and nutrient dynamics 13 years after recovery of degraded land nursing leguminous nitrogen-fixing trees. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Forest Ecology and Management, Amsterdam, v. 255, n. 5-6, p. 1516-1524, apr. 2008. |
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Idioma: |
Inglês |
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Notas: |
Parceria: UFRRJ. |
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Conteúdo: |
In tropical forest areas with highly weathered soils, organic matter plays an important role in soil functioning and forest sustainability. When forests are clear-cut, the soil begins almost immediately to lose organic matter, triggering a series of soil degradation processes, the extent and intensity of which depends on soil management. Depending on the level of soil degradation, the rate at which the system can re-establish itself can be slow and may require the use of degraded land restoration techniques. This study aimed at evaluating the potential of pioneer leguminous nitrogen-fixing trees to recuperate degraded land. The area studied ? located in the coastal town of Angra dos Reis in the State of Rio de Janeiro, Brazil ? was planted with seven species of fast-growing leguminous nitrogen-fixing trees in 1991. The nutrient concentrations (Ca, Mg, P and K) and N and C stocks in the soil and litter were determined, in addition to the free- and occluded-light fractions of soil organic matter. Soil samples were also collected from two reference areas: (1) an area of undisturbed native forest; and (2) a deforested area spontaneously colonised by Guinea grass (Panicum maximum). The nutrient stocks in the litter of the restored area were similar to those found in native forest. The recuperation technique used was able to re-establish the soil C and N stocks after 13 years. C and N increased by 1.73 and 0.13 Mg ha-1 year-1, respectively. The free-light fraction was highest in the recuperated area and lowest in the deforested area. The occluded-light fraction of the recuperated area was higher than that of the native forest only in the 0?5 cm layer. Both the free-light and occluded fractions were higher in the native forest and recuperated areas than in the deforested area. Since the free-light and the occluded-light fractions are the result of litterfall and decomposition, these results ? combined with the data of litter stocks and soil C and N stocks ? indicate that the use of legume trees was efficient in re-establishing the nutrient cycling processes of the systems. These results also show that recovering degraded land with this technique is effective in sequestering carbon dioxide from the atmosphere at high rates. MenosIn tropical forest areas with highly weathered soils, organic matter plays an important role in soil functioning and forest sustainability. When forests are clear-cut, the soil begins almost immediately to lose organic matter, triggering a series of soil degradation processes, the extent and intensity of which depends on soil management. Depending on the level of soil degradation, the rate at which the system can re-establish itself can be slow and may require the use of degraded land restoration techniques. This study aimed at evaluating the potential of pioneer leguminous nitrogen-fixing trees to recuperate degraded land. The area studied ? located in the coastal town of Angra dos Reis in the State of Rio de Janeiro, Brazil ? was planted with seven species of fast-growing leguminous nitrogen-fixing trees in 1991. The nutrient concentrations (Ca, Mg, P and K) and N and C stocks in the soil and litter were determined, in addition to the free- and occluded-light fractions of soil organic matter. Soil samples were also collected from two reference areas: (1) an area of undisturbed native forest; and (2) a deforested area spontaneously colonised by Guinea grass (Panicum maximum). The nutrient stocks in the litter of the restored area were similar to those found in native forest. The recuperation technique used was able to re-establish the soil C and N stocks after 13 years. C and N increased by 1.73 and 0.13 Mg ha-1 year-1, respectively. The free-light fraction was highest in t... Mostrar Tudo |
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Palavras-Chave: |
Ciclo do nutriente; Reabilitação de terras. |
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Categoria do assunto: |
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Marc: |
LEADER 03025naa a2200241 a 4500
001 1630311
005 2015-03-16
008 2008 bl --- 0-- u #d
100 1 $aMACEDO, M. O.
245 $aChanges in soil C and N stocks and nutrient dynamics 13 years after recovery of degraded land nursing leguminous nitrogen-fixing trees.
260 $c2008
500 $aParceria: UFRRJ.
520 $aIn tropical forest areas with highly weathered soils, organic matter plays an important role in soil functioning and forest sustainability. When forests are clear-cut, the soil begins almost immediately to lose organic matter, triggering a series of soil degradation processes, the extent and intensity of which depends on soil management. Depending on the level of soil degradation, the rate at which the system can re-establish itself can be slow and may require the use of degraded land restoration techniques. This study aimed at evaluating the potential of pioneer leguminous nitrogen-fixing trees to recuperate degraded land. The area studied ? located in the coastal town of Angra dos Reis in the State of Rio de Janeiro, Brazil ? was planted with seven species of fast-growing leguminous nitrogen-fixing trees in 1991. The nutrient concentrations (Ca, Mg, P and K) and N and C stocks in the soil and litter were determined, in addition to the free- and occluded-light fractions of soil organic matter. Soil samples were also collected from two reference areas: (1) an area of undisturbed native forest; and (2) a deforested area spontaneously colonised by Guinea grass (Panicum maximum). The nutrient stocks in the litter of the restored area were similar to those found in native forest. The recuperation technique used was able to re-establish the soil C and N stocks after 13 years. C and N increased by 1.73 and 0.13 Mg ha-1 year-1, respectively. The free-light fraction was highest in the recuperated area and lowest in the deforested area. The occluded-light fraction of the recuperated area was higher than that of the native forest only in the 0?5 cm layer. Both the free-light and occluded fractions were higher in the native forest and recuperated areas than in the deforested area. Since the free-light and the occluded-light fractions are the result of litterfall and decomposition, these results ? combined with the data of litter stocks and soil C and N stocks ? indicate that the use of legume trees was efficient in re-establishing the nutrient cycling processes of the systems. These results also show that recovering degraded land with this technique is effective in sequestering carbon dioxide from the atmosphere at high rates.
653 $aCiclo do nutriente
653 $aReabilitação de terras
700 1 $aRESENDE, A. S. de
700 1 $aGARCIA, P. C.
700 1 $aBODDEY, R. M.
700 1 $aJANTALIA, C. P.
700 1 $aURQUIAGA, S.
700 1 $aCAMPELLO, E. F. C.
700 1 $aFRANCO, A. A.
773 $tForest Ecology and Management, Amsterdam$gv. 255, n. 5-6, p. 1516-1524, apr. 2008.
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Embrapa Agrobiologia (CNPAB) |
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| 3. |  | NACHTIGALL, G. R. Diagnose foliar. Cultivar Hortaliças e Frutas, Pelotas, v. 7, n. 43, p. 6-8, abr./maio 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Local - A |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 11. | | NACHTIGALL, G. R. Manual de identificação e controle de desequilíbrios da macieira. In: VALDEBENITO SANHUEZA, R. M.; NACHTIGALL, G. R.; KOVALESKI, A.; SANTOS, R. S. S. dos; SPOLTI, P. Manual de |dentificação e controle de doenças, pragas e desequilíbrio nutricional da macieira. Bento Gonçalves: Embrapa Uva e Vinho, 2008. p. 45-58. il., color.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 12. | | NACHTIGALL, G. R. (ed.). Maçã: produção. Brasília, DF: Embrapa Informação Tecnológica; Bento Gonçalves: Embrapa Uva e Vinho, 2004. 169 p. il. (Frutas do Brasil, 37).| Tipo: Autoria/Organização/Edição de Livros |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 16. | | NACHTIGALL, G. R. Projeto Inovamaçã. In: FRUTAL CONE SUL, 1., 2009, Bento Gonçalves. Frutas, flores e agroindústria: [anais]. Fortaleza: Instituto Frutal, 2009. p. 1-4. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 17. | | NACHTIGALL, G. R. O projeto INOVAMAÇÃ. In: NACHTIGALL, G. R. (Ed.). Inovações tecnológicas para o setor da maçã - Inovamaçã. Bento Gonçalves: Embrapa Uva e Vinho, 2011. p. 13-22. il., color.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 20. | | NACHTIGALL, G. R. Irrigação e fertirrigação em pomares de macieira nas condições do sul do Brasil. In: SEMINÁRIO NACIONAL SOBRE FRUTICULTURA DE CLIMA TEMPERADO, 13., 2018. Anais... São Joaquim, SC: SENAFRUT, 12 a 14 de junho, 2018. p. 49. Agropecuária catarinense, suplemento especial, v. 31, n. 2, mai./ago. 2018. p. 47-54| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| Registros recuperados : 254 | |
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