Současné trendy v zrnitostním složení sedimentů štěrkových lavic toků Moravskoslezských Beskyd – příkladová studie Sihelský potok

Roč. 15 (2008)

Changes in sediment delivery to mountain stream channels are a typical feature of present-day geomorphological evolution of channel morphology. There is a high level of transport of coarse-grained sediments typical for Carpathian region built by flysch rocks. Evaluation of the effect of man-induced changes in the study area is focused on the quantification of this phenomenon through the use of automated sizing of coarse-grained sediments. Tendency in the composition of gravel bars is studied along the longitudinal profile and with regard to adjacent landforms.

Klíčová slova:
Silesian Unit, Moravskoslezské Beskydy Mts., Sihelský potok Brook, automated particle-size analyses, gravel bars

Brummer, C. J. − Montgomery, D. R. (2003): Downstream coarsening in headwater channels. − Water Resour. Res., 39, 10, 1294−1307.
Bunte, K. − Abt, S. R. (2001): Sampling surface and subsurface particle-size distributions in wadable gravel-and cobble-bed streams for analyses in sediment transport, hydraulics, and streambed monitoring. − 1−428, Gen. Tech. Rep. RMRS-GTR-74. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station.
Folk, R. L. − Ward, W. C. (1957): Brazos River Bar: a study in the significance of grain size parameters. − Journal of Sedimentary Petrology, 27, 1, 3−26.
Graham, D. J. − Reid, I. − Rice, S. P. (2005): Automated sizing of coarse grained sediments: Image-processing procedures. − Mathematical Geology, 37, 1, 1−28.
Kondolf, G. M. − Piégay, H. (2003): Tools in fluvial geomorphology. − 1−696, Wiley, Chichester.
Montgomery, D. R. − Buffington, J. M. (1998): Channel processes, classification, and response. − In: Naiman, R., Bilby, R. (Eds.): River Ecology and Management, 13−42, Springer-Verlag, New York.
Owczarek, P. (2008): Hillslope deposits in gravel-bed rivers and their effects on the evolution of alluvial channel forms: A case study from the Sudetes and Carpathian Mountains. – Geomorphology, 98, 1–2, 111–125.





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