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Schweizerische Zeitschrift für Hydrologie

, Volume 42, Issue 2, pp 101–126 | Cite as

Sedimentation in Lake Biel, an eutrophic, hard-water lake in northwestern Switzerland

  • Richard F. Wright
  • Albert Matter
  • Marc Schweingruber
  • Ulrich Siegenthaler
Article

Abstract

A 2-year study of sedimentation in Lake Biel reveals that three major factors can account for the spatial and temporal patterns of tripton sedimentation. Allochthonous inputs of particulate matter mostly derived from the Aare river during spring snowmelt and other high-water periods, provide about 50% of the carbonate and 50% of the siliceous matter collected in sediment traps. Phytoplankton activity in this eutrophic, hard-water lake accounts for the rest of the carbonate and siliceous matter, the latter being mostly diatom frustules. Sedimentation rates are thus highest during periods of maximum river flooding, maximum phytoplankton activity and following the breakdown of the thermocline, at which time trapped particles settle out. Resuspension of sediment is important in at least one basin. Resolution of carbonate appears to be minor.

Keywords

Sedimentation Suspended Matter Sediment Trap Phytoplankton Productivity Diatom Frustule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Verlag 1980

Authors and Affiliations

  • Richard F. Wright
    • 1
  • Albert Matter
    • 1
  • Marc Schweingruber
    • 2
  • Ulrich Siegenthaler
    • 3
  1. 1.Department of GoelogyUniversity of BernBernSwitzerland
  2. 2.Department of Inorganic ChemistryUniversity of BernBernSwitzerland
  3. 3.Department of PhysicsUniversity of BernBernSwitzerland

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