2018
DOI: 10.1002/esp.4371
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Evolution of river planforms downstream of dams: Effect of dam construction or earlier human‐induced changes?

Abstract: When studying the evolution of landscape, it is difficult to discriminate the influence of anthropogenic from natural causes, or recognise changes caused by different sources of human action. This is especially challenging when the influence of certain sources is overprinted. For instance, although dam closure is the most common method of altering river courses, dam construction is often preceded by hydro-technical works such as channel straightening, embankment construction or sediment mining. Both dam constr… Show more

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Cited by 48 publications
(34 citation statements)
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“…It also shows that the number and area of the lateral inter-island channels decreases. The results reflect the siltation of side channels, a process also observed below dams by Smith et al [68] in the Saskatchewan River and by Słowik et al [47] in the Drava River. In the period 2003 to 2015, a 20% decrease in the main channel cross-section area was found, which is particularly notable in the accumulative zones (hydrological cross-section no.…”
Section: Monitoring Of Channel Processes (Mcp)supporting
confidence: 82%
See 1 more Smart Citation
“…It also shows that the number and area of the lateral inter-island channels decreases. The results reflect the siltation of side channels, a process also observed below dams by Smith et al [68] in the Saskatchewan River and by Słowik et al [47] in the Drava River. In the period 2003 to 2015, a 20% decrease in the main channel cross-section area was found, which is particularly notable in the accumulative zones (hydrological cross-section no.…”
Section: Monitoring Of Channel Processes (Mcp)supporting
confidence: 82%
“…The zone of intensive bed erosion below dams occurs at a certain reach and moves at various rates as time goes on. The movement rate of the erosion front is closely connected to the dynamics of reservoir discharges, topography, and the geological structure [20,23,38,44,46,47].…”
Section: Introductionmentioning
confidence: 99%
“…Soil thickness is highly variable, from a few centimeters to a meter, the top 0.5 m has more organic material. In addition to particle size distribution, soils were studied using GPR (ground penetrating radar) and satellite image analysis, in combination with the survey of landforms [68,69]. (Figure 2b).…”
Section: Soil Datamentioning
confidence: 99%
“…These changes may be the natural features of a hydrological regime, and can be characterized by cyclic (seasonal) character. However, in many cases such changes are caused by anthropogenic actions such as dam closure, sand mining and constructions of drainage or irrigation canals (e.g., Surian 1999;Rinaldi 2003;Horn et al 2012;David et al 2016;Słowik et al 2018). Global damming of rivers resulted in changes that have no reference in the evolution of rivers in the past.…”
Section: Introductionmentioning
confidence: 99%
“…This process was enhanced by dams constructions since 1958. The effect was the exposure of channel bars, which, in turn, caused vegetation encroachment, stabilization of bars and formation of alluvial islands (Kiss and Balogh 2015;Słowik et al 2018). Rivers may react in a variety of ways to dam closure.…”
Section: Introductionmentioning
confidence: 99%