Baborowski M, Büttner O, Morgenstern P, Krüger F, Lobe I, Rupp H, Tümpling W V
Department of River Ecology, Helmholtz Centre for Environmental Research, UFZ, Brückstrasse 3a, 39114 Magdeburg, Germany.
Environ Pollut. 2007 Aug;148(3):770-8. doi: 10.1016/j.envpol.2007.01.032. Epub 2007 Mar 21.
Artificial-lawn mats were used as sediment traps in floodplains to measure sediment input and composition during flood events. To estimate the natural variability, 10 traps were installed during two flood waves at three different morphological units in a meander loop of the River Elbe. The geochemical composition of deposited and suspended matter was compared. The sediment input showed weak correlations with concentration and composition of river water. It also correlated poorly with flood duration and level as well as distance of trap position from the main river. This is due to the high variability of the inundation, different morphological conditions and the variability of sources. The composition of the deposits and the suspended matter in the river water was comparable. Hence, for the investigated river reach, the expected pollution of the floodplain sediments can be derived from the pollution of the suspended matter in the river during the flood wave.
人工草坪垫被用作洪泛区的沉积物捕获器，以测量洪水事件期间的沉积物输入量和成分。为了估计自然变异性，在易北河一个河曲段的三个不同形态单元的两次洪水波期间安装了10个捕获器。比较了沉积物质和悬浮物的地球化学组成。沉积物输入量与河水浓度和成分的相关性较弱。它与洪水持续时间、水位以及捕获器位置与主河的距离也相关性较差。这是由于淹没的高度变异性、不同的形态条件以及来源的变异性。河水中沉积物和悬浮物的组成具有可比性。因此，对于所研究的河段，洪泛区沉积物的预期污染可以从洪水波期间河流中悬浮物的污染情况推导出来。
