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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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| Nóbrega,Gabriel Nuto; Romero,Danilo Jefferson; Otero,Xosé Luis; Ferreira,Tiago Osório. |
| ABSTRACT: Seagrass meadows are considered one of the most important and valuable ecosystems on the planet, but also one of the most threatened. Missing knowledge about their existence and their subtidal nature are the main reasons for the lack of information about seagrass soils, especially in Brazil and other tropical areas. This study discussed the paradoxical lack of information about subaqueous soils, with a view to stimulate research on soil properties of seagrass meadows. This short communication provides information about the ecosystem and first descriptions of seagrass soils along the Brazilian Coast, marked by gleyzation, sulfidization, salinization, paludization, solonization, and classified as Gleissolos tiomórficos. Pedological studies on these... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Coastal wetlands; Blue carbon; Sulfidization; Gleization; Submerged soils. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100302 |
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| Souza-Júnior,Valdomiro Severino de; Vidal-Torrado,Pablo; Garcia-González,Maria Teresa; Macías,Felipe; Otero,Xosé Luis. |
| Smectitic clay minerals are frequently identified in mangrove soils, but there is little information about their types and origins. Besides their importance in the agronomical and geotechnical areas, smectites play an important environmental role by adsorbing nutrients, organic pollutants and heavy metals. Smectites found in mangrove soils can be of marine or continental detrital origin, or of neoformation origin. Thus, the objective of this study was to identify the types of smectites present in the State of São Paulo mangrove soils (Brazil), and to relate them to their possible origins. Soil samples were taken in five mangroves along the State of Sao Paulo State coast line. The mineral composition of the clay fraction was identified by X-ray... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Greene-Kelly test; Neoformation; Nontronite. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100007 |
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