Articles liés à The Influence of Bioirrigation: Diagenisis, Mobility,...

The Influence of Bioirrigation: Diagenisis, Mobility, and Transport of Trace Metal Distribution Within Saltmarsh Burrows - Couverture souple

Shattuck, Terri

 
9783838367682: The Influence of Bioirrigation: Diagenisis, Mobility, and Transport of Trace Metal Distribution Within Saltmarsh Burrows
Couverture souple
ISBN 10 : 3838367685 ISBN 13 : 9783838367682
Editeur : LAP LAMBERT Academic Publishing, 2010

Synopsis

Near-shore marine environments are complex ecosystems where much of the global benthic flux of metals and nutrients take place between the seawater and sediment (Meile et al, 2003). Bioirrigation is the increase of solute transport resulting from introduction of oxygenated water from the surface into the more reduced environment deep within the burrow. Fe and Mn hydr-(oxides) accumulate on burrow margins in response to the oxygen flux into suboxic porewaters and has been shown to trap trace metals (Harding and Risk, 1986; Tessier and Campbell, 1988; Tessier et al., 1979, 1982). The diagenesis, mobility, and transport of metals may enhance the bioavailability of metals in the environment, possibly to the extent of harming ecosystems, especially in coastal areas with anthropogenic waste. This study assesses Fe and trace metal speciation influenced by bioirrigation in and near burrows collected off the coasts of Georgia and Washington. Overall, this study found that bioirrigation does play a role in metal distribution and retention near burrows, but sediment mineralogy, grain size and organic matter were also significant factors at the studied sites.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Near-shore marine environments are complex ecosystems where much of the global benthic flux of metals and nutrients take place between the seawater and sediment (Meile et al, 2003). Bioirrigation is the increase of solute transport resulting from introduction of oxygenated water from the surface into the more reduced environment deep within the burrow. Fe and Mn hydr-(oxides) accumulate on burrow margins in response to the oxygen flux into suboxic porewaters and has been shown to trap trace metals (Harding and Risk, 1986; Tessier and Campbell, 1988; Tessier et al., 1979, 1982). The diagenesis, mobility, and transport of metals may enhance the bioavailability of metals in the environment, possibly to the extent of harming ecosystems, especially in coastal areas with anthropogenic waste. This study assesses Fe and trace metal speciation influenced by bioirrigation in and near burrows collected off the coasts of Georgia and Washington. Overall, this study found that bioirrigation does play a role in metal distribution and retention near burrows, but sediment mineralogy, grain size and organic matter were also significant factors at the studied sites.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3838367685
ISBN 13 
9783838367682
Reliure
Broché
Nombre de pages
120
Coordonnées du fabricant
non disponible
Personne responsable
KreGa Onlinehandel GmbH
4950000000000
info@krega-onlinehandel.de

Birkenweg 31
Brakel
33034
Allemagne