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| Bomfim,Marcela Rebouças; Santos,Jorge Antonio Gonzaga; Costa,Oldair Vinhas; Otero,Xosé Luis; Boas,Geraldo da Silva Vilas; Capelão,Valdinei da Silva; Santos,Edson de Souza dos; Nacif,Paulo Gabriel Soledade. |
| ABSTRACT Preservation of mangroves, a very significant ecosystem from a social, economic, and environmental viewpoint, requires knowledge on soil composition, genesis, morphology, and classification. These aspects are of paramount importance to understand the dynamics of sustainability and preservation of this natural resource. In this study mangrove soils in the Subaé river basin were described and classified and inorganic waste concentrations evaluated. Seven pedons of mangrove soil were chosen, five under fluvial influence and two under marine influence and analyzed for morphology. Samples of horizons and layers were collected for physical and chemical analyses, including heavy metals (Pb, Cd, Mn, Zn, and Fe). The moist soils were suboxidic, with Eh... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pedogenesis; Hydromorphism; Heavy metals. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501247 |
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| Boechat,Cácio Luiz; Santos,Jorge Antonio Gonzaga; Accioly,Adriana Maria de Aguiar; Bomfim,Marcela Rebouças; Santos,Adailton Conceição dos. |
| Microbial processes have been used as indicators of soil quality, due to the high sensitivity to small changes in management to evaluate, e.g., the impact of applying organic residues to the soil. In an experiment in a completely randomized factorial design 6 x 13 + 4, (pot without soil and residue or absolute control) the effect of following organic wastes was evaluated: pulp mill sludge, petrochemical complex sludge, municipal sewage sludge, dairy factory sewage sludge, waste from pulp industry and control (soil without organic waste) after 2, 4, 6, 12, 14, 20, 28, 36, 44, 60, 74, 86, and 98 days of incubation on some soil microbial properties, with four replications. The soil microbial activity was highly sensitive to the carbon/nitrogen ratio of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial respiration; Microbial carbon; Microbial nitrogen; Metabolic quotient; Organic sludge. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500027 |
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