Litho- and palynostratigraphy at Lobsigensee: Evidences for trophic changes during the Holocene

Ammann, Brigitta (1986). Litho- and palynostratigraphy at Lobsigensee: Evidences for trophic changes during the Holocene. Hydrobiologia, 143(1), pp. 301-307. Springer 10.1007/BF00026674

Preview

Text 1986_Hydrobiologia_143_301.pdf - Published Version Available under License Publisher holds Copyright. Download (567kB) | Preview

In the pond of Lobsigensee (2 ha, on the Swiss Plateau) lithostratigraphic and palynostratigraphic units for the Late-glacial and the Holocene have been described. During the Late-Glacial the sediment types are mainly controlled by climate (the end of clay deposition coincides with the end of the Oldest Dryas, i.e. with reforestation at the beginning of Bölling) or by facies (lake marl in the littoral, gyttja in the profundal during Bölling and Alleröd). During the Holocene the facies and the changes in the trophic status, partly combined with water level changes, seem to determine the types of sediment. Two phases of natural eutrophication are deduced from laminated sections during the Boreal and the early Older Atlantic. Towards the end of the Younger Atlantic an early example of a probably anthropogenic eutrophication is found in the layers contemporaneous with the neolithic settlement of the Cortaillod culture. Since the Roman colonization the amount of erosional input has markedly increased.

Interest & Impact

Downloads

34 since deposited on 15 Jan 2018
30 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item