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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
04/12/2000 |
Data da última atualização: |
17/06/2015 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
LEHMANN, J.; TRUJILLO, L.; ZECH, W. |
Afiliação: |
Yniversity of Bayreuth. |
Título: |
Subsoil nitrogen dynamics in Amazonian forest successions. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University, 2000. |
Páginas: |
p. 176. |
Idioma: |
Inglês |
Conteúdo: |
In this study we were mesuring mineral and total soil N to a depth of 8 m in secondary forest and under two primary forest species in three replicates, in Manaus-AM (Brasil). The results show low amounts of nitrate underneath the secondary forest to a depth of 2 m, whereas the nitrate contents under the two primary forest sites were high at 1 m - 2 m depth. Below 2 m depth, it was reversed and the mineral soil N was higher under the secondary forest than the primary forest. The N mineralization showed the same trend indicating that a large portion of the N is leached in its organic form. |
Palavras-Chave: |
Amazonas; Brasil; Manaus. |
Thesagro: |
Floresta Tropical Úmida; Latossolo Amarelo; Lixiviação; Nitrogênio; Solo. |
Thesaurus Nal: |
Ferralsols; leaching; nitrogen; tropical rain forests. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125525/1/p.-176.pdf
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Marc: |
LEADER 01393nam a2200289 a 4500 001 1670036 005 2015-06-17 008 2000 bl uuuu u00u1 u #d 100 1 $aLEHMANN, J. 245 $aSubsoil nitrogen dynamics in Amazonian forest successions. 260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University$c2000 300 $ap. 176. 520 $aIn this study we were mesuring mineral and total soil N to a depth of 8 m in secondary forest and under two primary forest species in three replicates, in Manaus-AM (Brasil). The results show low amounts of nitrate underneath the secondary forest to a depth of 2 m, whereas the nitrate contents under the two primary forest sites were high at 1 m - 2 m depth. Below 2 m depth, it was reversed and the mineral soil N was higher under the secondary forest than the primary forest. The N mineralization showed the same trend indicating that a large portion of the N is leached in its organic form. 650 $aFerralsols 650 $aleaching 650 $anitrogen 650 $atropical rain forests 650 $aFloresta Tropical Úmida 650 $aLatossolo Amarelo 650 $aLixiviação 650 $aNitrogênio 650 $aSolo 653 $aAmazonas 653 $aBrasil 653 $aManaus 700 1 $aTRUJILLO, L. 700 1 $aZECH, W.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registros recuperados : 86 | |
5. | | STEINER, C.; TEIXEIRA, W. G.; ZECH, W. The effect of charcoal in banana (Musa sp.) planting holes - an on-farm study in Central Amazonia, Brazil. In: WOODS, W. I.; TEIXEIRA, W. G.; LEHMANN, J.; STEINER, C.; WINKLERPRINS, A.; REBELLATO, L. (Ed.). Amazonian dark earths: Wim Sombroek's vision. Berlin: Springer, 2009. p. 423-432.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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8. | | STEINER, C.; GARCIA, M.; ZECH, W. Effects of charcoal as slow release nutrient carrier on N-P-K dynamics and soil microbial population: pot experiments with Ferralsol substrate. In: WOODS, W. I.; TEIXEIRA, W. G.; LEHMANN, J.; STEINER, C.; WINKLERPRINS, A.; REBELLATO, L. (Ed.). Amazonian dark earths: Wim Sombroek's vision. Berlin: Springer, 2009. p. 325-338.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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13. | | LEHMANN, J.; CRAVO, M.; ZECH, W. Single tree effects on soil organic matter. In: SHIFT PROJECT ENV 45 (Manaus-AM). Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus. Manaus: EMBRAPA-CPAA : BMBF, 1997. p. 58-66.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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Registros recuperados : 86 | |
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