Organic matter and dissolved inorganic nitrogen distributions in estuarine muddy deposits
| Autor: | Margaret Chen, Leo Goeyens, Stanislas Wartel, Natacha Brion, Willy Baeyens, Les M. Lavkulich |
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| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Hydrology geography Biogeochemical cycle geography.geographical_feature_category Ecology Discharge Sediment Estuary Management Monitoring Policy and Law Aquatic Science Sedimentation chemistry.chemical_compound Oceanography Water column Nitrate chemistry Environmental science Organic matter |
| Zdroj: | Aquatic Ecosystem Health & Management. 10:69-85 |
| ISSN: | 1539-4077 1463-4988 |
| DOI: | 10.1080/14634980701211896 |
| Popis: | Organic matter (OM) and dissolved inorganic nitrogen (DIN: nitrite, nitrate and ammonium) in the sediments as well as in the water column of two temperate estuaries, the Scheldt Estuary in Belgium and the Netherlands, and the Fraser Estuary in Canada, were investigated. Three representative stations, differing in salinity and representing areas of fast sedimentation, were selected in each estuary. Samples were taken during periods of high and low river discharge. The results show, in both estuaries, that the vertical distributions of OM and DIN in a sediment layer are affected by the instability, caused by episodic resuspension and re-deposition, of the uppermost sediment layer. The findings of this study suggest a hypothesis, next to biogeochemical processes, that the OM and DIN distributions in upper sediment layers are influenced by sedimentary processes in the estuarine environment. The same sedimentary processes even in different estuaries affect OM and DIN distributions in an equivalent way. Corresp... |
| Databáze: | OpenAIRE |
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