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Carbon and nutrients inputs to the soil in a mixed plantations trial

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Resumo:The present study was conducted in an 11 year old trial of mixed plantation located in the Northeast of Portugal. Sampling occurred in the three following treatments: pure black locust (PR), pure wild cherry (PP) and admixture of wild cherry and black locust (MPR). To better understand the effect of the consociation of the N-fixing species (black locust) with broadleaves quality timber production (wild cherry) we assessed the inputs of the litterfall, carbon and nutrients (N, P and K) to the soil. Until now, litterfall production was not significantly different among treatments. The amounts of litterfall ranged from 1.1-1.9 Mg ha-1. The corresponding inputs of carbon ranged from 0.56-0.96 Mg ha-1. The treatments containing black locust cycled higher quantities of N through litterfall than the wild cherry monoculture. The quantities of K returned to the soil through litterfall were greater in the pure black locust plantation than in the other treatments. The amounts of P were similar among treatments.
Autores principais:Pereira, Ermelinda
Outros Autores:Nunes, Luís; Patrício, Maria Sameiro
Assunto:Black locust Wild cherry N-fixing species Carbon Mixed plantations
Ano:2011
País:Portugal
Tipo de documento:documento de conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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