Abstract
A budget for net accumulation of fine-grained sediment (<63 μm) has been set up for the Sylt-Rømø tidal basin. Net accumulation within the basin was computed from210Pb core dating and mapping of the intertidal and supratidal surface sediments. It was found that a yearly mean value of 58·103 tons of sediment was deposited in the tidal basin. The largest sediment source for the net input of fine-grained sediment is the North Sea contributing about 64% to the net budget; the fluvial input and primary production contribute 14% and 15%, respectively. Local salt marsh erosion accounts for about 5% of the budget and atmospheric deposition for only 2%. The total amount of sediment deposited in the investigated area was low compared with earlier investigations in the Wadden Sea. This is explained partly by the intensive diking of the natural salt marshes fringing the area in the past, and partly by the exposed conditions of most of the intertidal flats. An index describing the trapping efficiency of the water exchanged between the North Sea and the Sylt-Rømø tidal area is defined as the ratio between yearly net sediment input from the North Sea and yearly exchanged water volume between the tidal basin and the sea. This index shows that in the Sylt-Rømø tidal basin, fine-grained suspended sediment “filters” out of the exchanged sea water at a rate that is 12 times lower than in the Gr»dyb tidal basin. It is concluded that the net deposition of fine-grained sediment in a tidal basin is mainly a function of physiographical and hydrodynamical parameters and to a lesser degree of sediment availability
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Literature Cited
Appleby, P. G. & Oldfield, F., 1978. The calculation of lead 210 dates assuming a constant rate of supply of unsupported210Pb to the sediment.—Catena,5, 1–8.
Asmus, H. & Asmus, R., 1985. The importance of grazing food chain for energy flow and production in three intertidal sand bottom communities of the northern Wadden Sea.—Helgoländer Meeresunters.39, 273–301.
Bartholdy, J. & Pheiffer-Madsen, P., 1985. Accumulation of fine-grained material in a Danish tidal area.—Mar. Geol.67, 121–137.
Breuning-Madsen, H., (Ed.), 1995. Deposition of fine-grained sediment in the Königshafen tidal area.—Meddr. Skalling-Lab.34, 1–39.
Broecker, W. S., Torekian, K. K. & Heerzen, B. C., 1958. The relation of deep sea sedimentation rates to variations in climate.—Am. J. Sci.256, 503–517.
Bruns, R., Hollinde, M. & Meyer-Reil, L.-A., 1995. Untersuchung zu mikrobiellen Nährstoffumset-zungen. SWAP Teilprojeckt 2.1/3.4b. Bundesministerium für Forschung und Technologie, Bonn, 114 pp.
Cadée, G. C. & Hegeman, J., 1974. Primary production of the benthic microflora living on tidal flats in the Dutch Wadden Sea.—Neth. J. Sea Res.8, 260–291.
Davis, J. L. H., 1964. A morphogenic approach to world shorelines.—Z. Geomorph.8 (Sonderh.), 127–142.
Dronkers, J., 1986. Tide-induced residual transport of fine-sediment. In: Physics of shallow estuaries and bays. Ed. by J van de Kreeke. Springer, New York, 228–244.
Edelvang, K., 1995. Falddiametre af flokkuleret sediment: variationen over en tidevandsperiode. In: Præsentationer ved det 8. Danske Havforskermøde. Ed. by B. Larsen. Fyns amt, Odense, 20–24.
Edelvang, K. & Austen, I., 1997. The temporal variation of flocs and fecal pellets in a tidal channel. —Estuar. coast. Shelf Sci.44, 361–367.
Edelvang, K., Larsen, M. & Pejrup, M., 1993. Deposition of fine-grained sediment in the Sylt-Rømø tidal area. SWAP Teilprojekt B 4.2. Bundesministerium für Forschung und Technologie, Bonn, 20 pp.
Eisma, D. & Irion, G., 1988. Suspended matter and sediment transport. In: Pollution of the North Sea. An assessment. Ed. by W. Salomons, B. L. Bayne, E. K. Duursma & U. Förstner. Springer, Berlin, 20–35.
El-Daoushy, F., 1988. A summary on the lead-210 cycle in nature and related applications in Scandinavia. —Environ. int.14, 305–319.
Es, F. B. van, 1977. Preliminary carbon budget for a part of the Ems estuary: The Dollard.—Helgoländer wiss. Meeresunters.30, 283–294.
Flemming, B. W. & Nyandwi, N., 1994. Land reclamation as a cause of fine-grained sediment depletion in backbarrier tidal flats (southern North Sea).—Neth. J. aquat. Ecol.28, 299–307.
French, J. R., Spencer, T., Murray, A. L. & Arnold N. S., 1994. Geostatistical analysis of sediment deposition in two small tidal wetlands, Norfolk, U. K..—J. coast. Res.11 308–321.
Haven, D. S. & Morales-Alamo, R., 1972. Biodeposition as a factor in sedimentation of fine suspended solids in estuaries.—Mem. geol. Soc. Am.133, 121–130.
Hayes, M. O., 1979. Barrier island morphology as a function of tidal and wave regime. In: Barrier Islands. Ed. by S. P. Leatherman. Acad. Press, New York, 1–27.
Köster, R., Austen, G., Austen, I., Bayerl, K.-A. & Ricklefs, K., 1995. Sedimentation, erosion und biodeposition. SWAP Teilprojekt 1.2b/3.1 Abschlußbericht. Christian-Albrechts-Univ. Kiel, FTZ, Büsum, 89 pp.
Larsen, M., Edelvang, K. & Pejrup, M., 1996. A fine-grained sediment budget for a small tidal area, Königshafen, Sylt, Germany.—Geogr. Tidsskr.96, 10–19.
Larsen, M., Pejrup, M. & Edelvang, K., 1994. Deposition of fine-grained sediment in the Sylt-Rømø tidal area. SWAP Teilprojekt, B 4.2. Bundesministerium für Forschung und Technologie, Bonn, 27 pp.
Leonard, L. A., Hine, A. C. & Luther, M. E., 1994. Surficial sediment transport and deposition processes in aJuncus roemerianus marsh, west-central Florida.—J. coast. Res.11, 322–336.
McCave, I. N., 1973. Mud in the North Sea. In: North Sea science. Ed. by E. D. Goldberg MIT Press, Cambridge, Mass., 75–100.
Pejrup, M., 1988a. Suspended sediment transport across a tidal flat.—Mar. Geol.82, 187–198.
Pejrup, M., 1988b. Flocculated suspended sediment in a micro-tidal environment.—Sediment. Geol.57, 249–256.
Pejrup, M., 1991. The influence of flocculation on cohesive sediment transport in a microtidal estuary.—Mem. Can. Soc. Petroleum Geologists16, 283–290.
Pejrup, M. & Bartholdy, J., 1991. Deposition of fine-grained sediment in the Königshafen tidal area. SWAP Teilprojekt B 4.2. Vorlaufprojekt. Bundesministerium für Forschung und Technologie, Bonn, 19 pp.
Pejrup, M., Larsen, M. & Edelvang, K., 1995. Deposition of fine-grained sediment in the Sylt-Rømø tidal area. SWAP Teilprojekt, B 4.2. Bundesministerium für Forschung und Technologie, Bonn, 45 pp.
Pheiffer-Madsen, P. & Sørensen, J., 1979. Validation of the lead-210 dating method.—J. radioanalyt. Chem.54, 39–48.
Postma, H., 1967. Sediment transport and sedimentation in estuarine environment. In: Estuaries. Ed. by G. H. Lauff. Am. Assn Adv. Sci., Washington, D. C., 158–179.
Schubel, J. R. & Carter, H. H., 1984. The estuary as a filter for fine-grained suspended sediment. In: The estuary as a filter. Ed. by V. S. Kennedy. Acad. Press., Orlando, 81–105.
Schulz, M., 1993. Räumliche und zeitliche Verteilung atmosphärischer Einträge von Spurenelementen in die Nordsee.—SchrR. angew. Analyt.17, 1–191.
Straaten, L. M. J. U. van & Kuenen, P. H., 1957. Accumulation of fine-grained sediment in the Dutch Wadden Sea.—Geologie Mijnb.19, 329–354.
Straaten, L. M. J. U. van & Kuenen, P. H., 1958. Tidal action as a cause of clay accumulation.—J. sedim. Petrol.28, 406–413.
Sønderjyllands Amtsr⇘d, 1993. “Afstrømningsm⇘linger 1992 i Sønderjyllands Amt”. Sønderjyllands Amtsr⇘d, Tønder.
Sønderjyllands Amtsr⇘d, 1994. “Afstrømningsm⇘linger 1993 i Sønderjyllands Amt”. Sønderjyllands Amtsr⇘d, Tønder.
Sønderjyllands Amtsr⇘d, 1995. “Afstrømningsm⇘linger 1994 i Sønderjyllands Amt”. Sønderjyllands Amtsr⇘d, Tønder.
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Pejrup, M., Larsen, M. & Edelvang, K. A fine-grained sediment budget for the Sylt-Rømø tidal basin. Helgoländer Meeresunters. 51, 253–268 (1997). https://doi.org/10.1007/BF02908714
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DOI: https://doi.org/10.1007/BF02908714