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| Gomes,Felipe Haenel; Ker,João Carlos; Ferreira,Tiago Osório; Moreau,Ana Maria Souza dos Santos; Moreau,Maurício Santana. |
| ABSTRACT Despite its importance, studies of mangrove soils are scarce, especially from a pedological perspective. The objective of this work was to study the genesis of soils in a mangrove environment in northeastern Brazil (Ilhéus, Bahia) through a morphological, physical, chemical and mineralogical characterization. All soils presented a sandy texture, which is related to the parent material (Quaternary sand deposits). The tidal flooding and resulting hydromorphic conditions is responsible for dominance of dark grey colors, and high organic matter contents (paludization process). As well as the high values of electrical conductivity (EC) and dominance of Na+ in the saturation extract (salinization and solodization processes, respectively). Contrastingly,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangrove ecosystem; Sulfidization; Paludization; Salinization; Solodization; Soil organic fractions. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400599 |
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| Velásquez-López,Patricio Colón; López-Sánchez,Ivonne Yadira; Rivera-Velásquez,María Fernanda. |
| ABSTRACT Present study focused on the evaluation of total mercury concentration and the estimation of ecological risk (Er), the ecological risk index (IR); and the toxic risk or hazard quotient (HQ) for human health in a mangrove area that borders the mouths of the Chaguana and Siete rivers, in La Puntilla estuary in the south of Ecuador. For the determination of the Er, RI, and HQ, we identified three indicators of mercury contamination: sediments, mangrove root, and soft tissue of the bivalve mollusk Anadara tuberculosa. In the mangrove area that borders the mouth of the Chaguana river, the mercury concentration fluctuated between 0,11-0,06 mg/kg in sediments, 0.06-0,01mg/kg in mangrove root, with a more consistence presence of A. tuberculosa, but one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecological risk index; Mercury; Anadara tuberculosa; Mangrove ecosystem. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100081 |
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