Data/hora: 13/06/2024 12:44:24

Biblioteca(s): | Embrapa Solos.
Data corrente: | 13/01/2021
Data da última atualização: | 28/10/2021
Autoria: | CABREIRA, W. V.; PEREIRA, M. G.; BALIEIRO, F. de C.; MATOS, E. da S.; RODRIGUES, R. de A. R.; SANTOS, R. N. dos.
Afiliação: | WILBERT VALKINIR CABREIRA, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ; FABIANO DE CARVALHO BALIEIRO, CNPS; EDUARDO DA SILVA MATOS, SIRE; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS; RAISSA NASCIMENTO DOS SANTOS, UFRRJ.
Título: | Mixed-species plantations of Eucalyptus and Acacia mangium increase labile carbon and phosphorus levels in Ferralsol soils in the Cerrado biome, Brazil.
Ano de publicação: | 2020
Fonte/Imprenta: | Southern Forests, v. 82, n. 4, p. 342-351, 2020.
DOI: | https://doi.org/10.2989/20702620.2020.1733764
Idioma: | Inglês
Conteúdo: | In order to clarify the effect of mixed planting in the dynamics of phosporus (P), we assessed the fractions of this element in mixed plantings of Eucalyptus urophylla × E. grandis (Urograndis) and Acacia mangium in a tropical soil clay, analysing changes in the fractions of P and examining the correlation of these changes with the fractions of soil organic matter. Pure stands of Urograndis (E) and A. mangium (A) (0A:100E and 100A:0E) and mixed stands of the two species (50A:50E and 37A:66E) were established. The fractionation of P, the granulometric fractionation of organic matter and the labile carbon (POXC) were determined at soil depths of 0-5 and 5-10 cm. Regarding the availability of P, organic parts contributed 34.6% to 38.1% relative to the total P, with the highest percentages being observed for the moderately labile fraction. Highest levels of labile organic P were observed in the mixed plantations. About soil carbon (C), the highest levels of the more labile C fractions were recorded in plantations in which Acacia was present. Mixed plantations were found to show a greater balance between labile P and C fractions. The C fractions warrant particular attention in future studies, notably those related to the emission of greenhouse gases.
Thesagro: | Carbono; Eucalyptus Grandis; Eucalyptus Urophylla; Fósforo; Nutrição Vegetal.
Thesaurus Nal: | Acacia mangium; Carbon; Phosphorus.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (20602-1) - UPC - AP - DD -  -  -  - DIS