Local variability of sedimentation rate in Lake Arendsee, Germany

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• 作者：Burkhard W. Scharf ; Bertram Boehrer ; Olaf Buettner ; Conrad Kopsch ; Frank Niessen
• 关键词：Sedimentation rate ; Resuspension ; Lake morphometry ; Stratification ; Oxygen distribution ; Lake Arendsee
• 刊名：Limnologica - Ecology and Management of Inland Waters
• 出版年：2010
• 出版时间：May 2010
• 年：2010
• 卷：40
• 期：2
• 页码：97-101
• 全文大小：382 K

文摘

We measured the thickness and the dry weight of recently deposited sediment along several transects across Lake Arendsee in order to quantify the sedimentation rate and its local variability. As a time marker, we used an artificial marl layer that was deposited by a remediation program in the year 1995. A portion of the sediment deposited during the year was transported from the littoral and the top of the submerged hills to the foot of the slope, where we found the greatest deposition. Within the same lake, the deposited sediment layer varied by a factor of 4 between minimal and maximal values over the same time periods. Lake Arendsee is a holomictic and eutrophic lake with depletion of oxygen in summer time.