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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
24/01/2011 |
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Data da última atualização: |
04/09/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PARRON, L. M.; BUSTAMANTE, M. M. C.; MARKEWITZ, D. |
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Afiliação: |
LUCILIA MARIA PARRON VARGAS, CNPF; Mercedes Maria Cunha Bustamante, UnB; Daniel Markewitz, University of Georgia. |
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Título: |
Fluxes of nitrogen and phosphorus in a gallery forest in the Cerrado of central Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Biogeochemistry, v. 105, n. 1-3, p. 89-104, 2011. |
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DOI: |
10.1007/s10533-010-9537-z |
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Idioma: |
Inglês |
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Conteúdo: |
The Gallery forests of the Cerrado biome play a critical role in controlling stream chemistry but little information about biogeochemical processes in these ecosystems is available. This work describes the fluxes of N and P in solutions along a topographic gradient in a gallery forest. Three distinct floristic communities were identified along the gradient: a wet community nearest the stream, an upland dry community adjacent to the woodland savanna and an intermediate community between the two. Transects were marked in the three communities for sampling. Fluxes of N from bulk precipitation to these forests resulted in deposition of 12.6 kg ha-1 y-1 of total N of which 8.8 kg ha-1 was as inorganic N. The throughfall flux of total N was generally\8.4 kg ha-1 year-1. Throughfall NO3?N fluxes were higher (7?32%) while NH4?N and organic N fluxes were lower (54?69%and 5?46%) than those in bulk precipitation. The throughfall flux was slightly lower for the wet forest community compared to other communities. Litter leachate fluxes differed among floristic communities with higher NH4?N in the wet community. The total N flux was greater in the wet forest than in the dry forest (13.5 vs. 9.4 kg ha-1 year-1, respectively). The stream water had totalNflux of 0.3 kg ha-1 year-1. The flux of total P through bulk precipitation was 0.7 kg ha-1 year-1 while the mean fluxes of total P in throughfall (0.6 kg ha-1 year-1) and litter leachate (0.5 kg ha-1 year-1) declined but did not differ between communities. The low concentrations presented in soil solution and low fluxes in stream water (0.3 and 0.1 kg ha-1 year-1 for N and P, respectively) relative to other flowpaths emphasize the conservative nutrient cycling of these forests and the importance of internal recycling processes for the maintenance and conservation of riparian and stream ecosystems in the Cerrado. MenosThe Gallery forests of the Cerrado biome play a critical role in controlling stream chemistry but little information about biogeochemical processes in these ecosystems is available. This work describes the fluxes of N and P in solutions along a topographic gradient in a gallery forest. Three distinct floristic communities were identified along the gradient: a wet community nearest the stream, an upland dry community adjacent to the woodland savanna and an intermediate community between the two. Transects were marked in the three communities for sampling. Fluxes of N from bulk precipitation to these forests resulted in deposition of 12.6 kg ha-1 y-1 of total N of which 8.8 kg ha-1 was as inorganic N. The throughfall flux of total N was generally\8.4 kg ha-1 year-1. Throughfall NO3?N fluxes were higher (7?32%) while NH4?N and organic N fluxes were lower (54?69%and 5?46%) than those in bulk precipitation. The throughfall flux was slightly lower for the wet forest community compared to other communities. Litter leachate fluxes differed among floristic communities with higher NH4?N in the wet community. The total N flux was greater in the wet forest than in the dry forest (13.5 vs. 9.4 kg ha-1 year-1, respectively). The stream water had totalNflux of 0.3 kg ha-1 year-1. The flux of total P through bulk precipitation was 0.7 kg ha-1 year-1 while the mean fluxes of total P in throughfall (0.6 kg ha-1 year-1) and litter leachate (0.5 kg ha-1 year-1) declined but did not differ betwe... Mostrar Tudo |
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Palavras-Chave: |
Biogeochemical processe; Bulk precipitation; Floresta de galeria; Litter leachate; Processo biogeoquímico; Riparian zone. |
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Thesagro: |
Fósforo; Nitrogênio; Solo. |
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Thesaurus Nal: |
soil solution; throughfall. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02719naa a2200289 a 4500
001 1874109
005 2019-09-04
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1007/s10533-010-9537-z$2DOI
100 1 $aPARRON, L. M.
245 $aFluxes of nitrogen and phosphorus in a gallery forest in the Cerrado of central Brazil.$h[electronic resource]
260 $c2011
520 $aThe Gallery forests of the Cerrado biome play a critical role in controlling stream chemistry but little information about biogeochemical processes in these ecosystems is available. This work describes the fluxes of N and P in solutions along a topographic gradient in a gallery forest. Three distinct floristic communities were identified along the gradient: a wet community nearest the stream, an upland dry community adjacent to the woodland savanna and an intermediate community between the two. Transects were marked in the three communities for sampling. Fluxes of N from bulk precipitation to these forests resulted in deposition of 12.6 kg ha-1 y-1 of total N of which 8.8 kg ha-1 was as inorganic N. The throughfall flux of total N was generally\8.4 kg ha-1 year-1. Throughfall NO3?N fluxes were higher (7?32%) while NH4?N and organic N fluxes were lower (54?69%and 5?46%) than those in bulk precipitation. The throughfall flux was slightly lower for the wet forest community compared to other communities. Litter leachate fluxes differed among floristic communities with higher NH4?N in the wet community. The total N flux was greater in the wet forest than in the dry forest (13.5 vs. 9.4 kg ha-1 year-1, respectively). The stream water had totalNflux of 0.3 kg ha-1 year-1. The flux of total P through bulk precipitation was 0.7 kg ha-1 year-1 while the mean fluxes of total P in throughfall (0.6 kg ha-1 year-1) and litter leachate (0.5 kg ha-1 year-1) declined but did not differ between communities. The low concentrations presented in soil solution and low fluxes in stream water (0.3 and 0.1 kg ha-1 year-1 for N and P, respectively) relative to other flowpaths emphasize the conservative nutrient cycling of these forests and the importance of internal recycling processes for the maintenance and conservation of riparian and stream ecosystems in the Cerrado.
650 $asoil solution
650 $athroughfall
650 $aFósforo
650 $aNitrogênio
650 $aSolo
653 $aBiogeochemical processe
653 $aBulk precipitation
653 $aFloresta de galeria
653 $aLitter leachate
653 $aProcesso biogeoquímico
653 $aRiparian zone
700 1 $aBUSTAMANTE, M. M. C.
700 1 $aMARKEWITZ, D.
773 $tBiogeochemistry$gv. 105, n. 1-3, p. 89-104, 2011.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
04/03/2008 |
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Data da última atualização: |
06/03/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Circulação/Nível: |
-- - -- |
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Autoria: |
SOUZA, B. J.; LEITE, J. M.; MORAIS, R. F.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. |
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Título: |
Potássio e outros nutrientes na biomassa de capim elefante (Pennisetum purpureum Schum.) para uso na produção de carvão vegetal. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 7., 2007, Seropédica, RJ. Resumos... Seropédica: Embrapa Agrobiologia, 2007. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
Parceria: UFRRJ |
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Thesagro: |
Capim Elefante; Carvão Vegetal; Pennisetum Purpureum; Potássio. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00794naa a2200241 a 4500
001 1629795
005 2008-03-06
008 2007 bl --- 0-- u #d
100 1 $aSOUZA, B. J.
245 $aPotássio e outros nutrientes na biomassa de capim elefante (Pennisetum purpureum Schum.) para uso na produção de carvão vegetal.
260 $c2007
300 $c1 CD-ROM.
500 $aParceria: UFRRJ
650 $aCapim Elefante
650 $aCarvão Vegetal
650 $aPennisetum Purpureum
650 $aPotássio
700 1 $aLEITE, J. M.
700 1 $aMORAIS, R. F.
700 1 $aALVES, B. J. R.
700 1 $aBODDEY, R. M.
700 1 $aURQUIAGA, S.
773 $tIn: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 7., 2007, Seropédica, RJ. Resumos... Seropédica: Embrapa Agrobiologia, 2007.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
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Registro completo
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Biblioteca(s): |
Catálogo Coletivo de Periódicos Embrapa; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia; Embrapa Semiárido; Embrapa Soja; Embrapa Trigo; Embrapa Uva e Vinho. MenosCatálogo Coletivo de Periódicos Embrapa; Embrapa Algodão; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia... Mostrar Todas |
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Identificador: |
2826 |
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Data corrente: |
09/05/2002 |
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Data da última atualização: |
09/05/2002 |
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Código do título: |
0900592 |
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ISSN: |
0100-6967 |
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Código CCN: |
027582-4 |
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Título e Subtítulo: |
DIVULGACAO AGRONOMICA |
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Entidade: |
Shell Quimica S.A. |
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Local de publicação: |
Sao Paulo-SP |
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Periodicidade: |
irregular |
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Inicio de publicação: |
1959 |
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Coleções da unidade: |
Embrapa Algodão
1961/79 (3,5-9,11,13,14-19,21-46)
Classificação: 632.05
Embrapa Amapá
1966 (22); 1969 (27); 1972 (32); 1973 (33); 1975 (36); 1976 (39-41); 1978 (43-44); 1979 (46)
Embrapa Amazônia Oriental
1959 (1); 1960 (2); 1961 (3-4); 1962 (5-8); 1963 (10); 1964 (11-13); 1965 (14-17); 1966 (18-22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-41); 1977 (42); 1978 (43-44); 1979 (45-46); 1980 (47)
Classificação: 632.05D518
Embrapa Arroz e Feijão
1960 (1); 1962 (6); 1963 (10); 1964 (12-13,15); 1965 (16-17); 1966 (19,22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-40); 1977 (42); 1978 (43-44); 1979 (45)
Embrapa Cerrados
1959-60 (1-2); 1961 (4); 1962 (6); 1964 (11); 1965; 1966 (18-22); 1968 (24,26); 1969 (27); 1970-80 (28-47)
Classificação: 632.05
Embrapa Mandioca e Fruticultura
1960(1-2); 1961(3-4); 1962(5-8); 1963(9-10); 1964(11-13); 1965(14-17); 1966(18-22); 1967(23); 1968(24-26); 1969(27); 1970(28-29); 1971(30-31); 1972(32); 1973(33); 1974(34-35); 1975(36-37); 1976(38-41); 1977(42); 1978(43-44); 1979(45-46); 1980(47);
Embrapa Meio-Norte
1961 (4); 1964 (12); 1965 (14-17); 1966 (18-21); 1967 (23); 1968/78 (25-44); 1979 (45)
Classificação: 632.05
Embrapa Pantanal
1971-80 (30,33,38-40,42-47)
Classificação: 23A
Embrapa Rondônia
1967 (23); 1969-71 (27-30); 1973-74 33-35; 1976 (39); 1978 (43-44); 1979-80 (45-47);
Classificação: 632.05
Embrapa Semiárido
1960 (2); 1961 (1,3); 1962 (7-8); 1965 (14-16); 1966 (20); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (39-41); 1978 (43-44); 1979 (45-46); 1980 (47);
Embrapa Soja
1965 (17); 1966(20); 1970 (28-29); 1971 (30); 1972 (32); 1973 (33); 1974 (34-35); 1975 (36-37); 1976 (38-41); 1977 (42); 1978(43-44); 1979 (46); 1980 (47)
Classificação: 632.05
Embrapa Trigo
1960/80 (1-2) 1960; (3-4) 1961; (5-8) 1962; (9-10) 1963; (11-13) 1964; (15-16) 1965; (18-22) 1966; (23) 1967; (24-26) 1968; (27) 1969; (28-29) 1970; (30-31) 1971; (32) 1972; (33) 1973; (34-35) 1974; (36-37) 1975; (38-41) 1976; (42) 1977; (43-44) 1978; (45-46) 1979; (47) 1980.
Classificação: 632.05
Embrapa Uva e Vinho
1961 (1); 1962 (8); 1963 (10); 1964 (11-13); 1965 (14-17); 1966 (18-22); 1967 (23); 1968 (24-26); 1969 (27); 1970 (28-29); 1971 (30-31); 1972 (32); 1973 (33); 1974 (34); 1975 (35-37); 1976 (38-41); 1977 (42); 1978 (44); 1979 (45-46); 1980 (47)
Classificação: 632.05 |
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