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

Wright, Richard F.; Matter, Albert; Schweingruber, Marc; Siegenthaler, Ulrich (1980). Sedimentation in Lake Biel, an eutrophic, hard-water lake in northwestern Switzerland. Schweizerische Zeitschrift für Hydrologie, 42(2), pp. 101-126. Birkhäuser 10.1007/BF02502430

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Climate and Environmental Physics
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)
08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Matter, Albert

Subjects:

500 Science > 530 Physics
500 Science > 540 Chemistry
500 Science > 550 Earth sciences & geology

ISSN:

0036-7842

Publisher:

Birkhäuser

Language:

English

Submitter:

Manuela Bamert

Date Deposited:

25 Jan 2017 07:54

Last Modified:

31 Aug 2021 16:39

Publisher DOI:

10.1007/BF02502430

BORIS DOI:

10.7892/boris.94372

URI:

https://boris.unibe.ch/id/eprint/94372

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