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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

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Beschikbaar in	Auteurs
VLIZ: Non-open access 274063 [ aanvragen ]

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Trefwoorden

Environmental management > Dredging Pollution > Soil pollution Properties > Physicochemical properties België, Bovenschelde [Marine Regions]; België, Zeeschelde [Marine Regions] Brak water

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Auteurs		Top
Vandecasteele, B. De Vos, B. Tack, F.M.G.

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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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