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The temporal and spatial quantification of Holocene sediment dynamics in a meso-scale catchment in northern Bavaria, Germany

Title data

Fuchs, Markus ; Will, Matthias ; Kunert, Eva ; Kreutzer, Sebastian ; Fischer, Manfred ; Reverman, Rebecca:
The temporal and spatial quantification of Holocene sediment dynamics in a meso-scale catchment in northern Bavaria, Germany.
In: The Holocene. Vol. 21 (November 2011) Issue 7 . - pp. 1093-1104.
ISSN 1477-0911
DOI: https://doi.org/10.1177/0959683611400459

Project information

Project financing: Andere

Abstract in another language

The Aufsess River catchment (97 km²)in northern Bavaria, Germany, is studied to establish a Holocene sediment budget and to investigate the sediment dynamics since the early times of farming in the third millennium BCE. The temporal characterization of the sediment dynamics is based on an intensive dating program with 73 OSL and 14 ¹⁴C ages. To estimate soil erosion and deposition, colluvial and alluvial archives are investigated in the field by piling and trenching, supported by laboratory analyses. The sediment budget shows that 58% of these sediments are stored as colluvium in on- and foot-slope positions, 9% are stored as alluvium in the floodplains and 33% are exported from the Aufsess River catchment. Colluviation starts in the end-Neolithic (c. 3100 BCE), while first indicators of soil erosion-derived alluviation is recorded c.2–3 ka later. The pattern of sedimentation rates also displays differences between the colluvial and alluvial system, with a distinct increase in the Middle Ages (c.1000 CE)for the alluvial system, while the colluvial system records low sedimentation rates for this period. A contrast is also observed since Modern times (c.1500 CE), with increasing sedimentation rates for the colluvial system, whereas the alluvial system records decreasing rates. The different behavior of the colluvial and alluvial systems clearly shows the non-linear behavior of the catchment’s fluvial system. The results further suggest that human impact is most probably the dominant factor influencing the sediment dynamics of the catchment since the introduction of farming.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: alluvium; colluvium; Holocene; optical dating, sediment budget; sediment dynamics; soil erosion
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Geomorphology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Geomorphology - Univ.-Prof. Dr. Ludwig Zöller
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 550 Earth sciences, geology
Date Deposited: 15 Feb 2017 10:15
Last Modified: 15 Feb 2017 10:15
URI: https://eref.uni-bayreuth.de/id/eprint/36083