Identification of dredged sediment-derived soils in the alluvial plains of the leie and the upper and sea scheldt rivers (belgium) based on physico-chemical soil properties
Vandecasteele, B.; De Vos, B.; Tack, F.M.G. (2002). Identification of dredged sediment-derived soils in the alluvial plains of the leie and the upper and sea scheldt rivers (belgium) based on physico-chemical soil properties. J. Environ. Monit. 4(2): 306-312. http://dx.doi.org/10.1039/b108881e
In: Journal of Environmental Monitoring. The Royal Society of Chemistry: Cambridge. ISSN 1464-0325; e-ISSN 1464-0333, more
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| Keywords |
Environmental management > Dredging
Pollution > Soil pollution
Properties > Physicochemical properties
Belgium, Bovenschelde [Marine Regions]; Belgium, Zeeschelde [Marine Regions]
Brackish water |
| Authors | | Top |
- Vandecasteele, B.
- De Vos, B., more
- Tack, F.M.G., more
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| Abstract |
An approach was developed to identify surface soils affected by historical dredged sediment disposal in the alluvial plains of the Upper Scheldt, the Sea Scheldt and the Leie river. Dredged sediment-derived soils were identified based on field observations, comparative granulometric analyses and chemical analyses. Criteria developed were based on a comparison between reference data from 102 aerobic soil samples of areas known to be affected by dredged sediment disposal and 104 samples from undisturbed alluvial soils along the studied rivers. A comparative grain size analysis with optical laser diffractometry between the A and C horizon proved useful for the identification of levelled-up sites. The chemical soil characteristics that were most useful in identifying dredged sediment-derived soils were CaCO3, sulfur (S), organic carbon (OC) and phosphorus (P) contents, electrical conductivity (EC), and the C/P and C/S ratios. Criteria for concluding the origin of an investigated soil were specific for the studied area, but the approach presented may provide useful guidelines for developing criteria valid for different regions. |
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