Data/hora: 19/06/2024 05:59:04

Biblioteca(s): | Embrapa Amazônia Ocidental.
Data corrente: | 04/12/2000
Data da última atualização: | 17/06/2015
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: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/125525/1/p.-176.pdf
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (5620-1) - UPC - RA - PP - R634.99 - G375p - 2000.00193 - DIS