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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Dynamics of fine root distribution after establishment of monospecific and mixed-species plantations of Eucalyptus grandis and Acacia mangium

Texto completo
Autor(es):
da Silva, Eduardo Vinicius [1] ; de Moraes Goncalves, Jose Leonardo [2] ; de Freitas Coelho, Selma Regina [3] ; Moreira e Moreira, Rildo [4] ; de Miranda Mello, Sergio Luis [5] ; Bouillet, Jean-Pierre [6] ; Jourdan, Christophe [7] ; Laclau, Jean-Paul [8]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] USP. ESALQ
[2] USP. ESALQ
[3] USP. ESALQ
[4] USP. ESALQ
[5] USP. ESALQ
[6] CIRAD. UPR80
[7] CIRAD. UPR80
[8] USP. ESALQ
Número total de Afiliações: 8
Tipo de documento: Artigo Científico
Fonte: PLANT AND SOIL; v. 325, n. 1-2, SI, p. 305-318, DEC 2009.
Citações Web of Science: 21
Resumo

Introducing N-fixing species in the understorey of fast-growing plantations might be an attractive option to improve soil N status. Intensive fine root sampling was performed in a complete randomized block design to investigate the ability of Eucalyptus grandis and Acacia mangium seedlings in monospecific stands and mixed-species plantations to take up complementary resources from niche exploration of soil layers. The same soil layers were explored by the two species down to a depth of 2 m in monospecific stands. Whilst the development of E. grandis fine roots was not affected by A. mangium trees in mixed-species plantations, A. mangium fine roots were excluded from the upper soil layer from 18 months after planting onwards, despite the paramount importance of that horizon for tree nutrition in highly weathered soils, and were only found deeper and close to A. mangium trees 30 months after planting. (AU)

Processo FAPESP: 02/11827-9 - Processos de transferência e balanço de água e nutrientes em povoamentos de Eucalyptus que receberam aplicações de nitrogênio e de biossolido:reflexos sobre a sustentabilidade
Beneficiário:José Leonardo de Moraes Gonçalves
Linha de fomento: Auxílio à Pesquisa - Regular