Hidrológiai Közlöny 2011 (91. évfolyam)

3. szám - Csáfordi Péter–Kalicz Péter–Gribovszki Zoltán: Erdősült kisvízgyűjtő éves hordalékhozamának becslése – és egy hordalékkúp hatásának vizsgálata

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P. 1989: Sediment concentration versus water discharge during single hydrologic events in rivers. Journal of Hydrology, Vol. Ill, pp. 89-106 A kézirat beérkezett 2010. november 16.: CSÁFORDI PÉTER Okleveles környezetmérnök, PhD-hallgató (Nyugat-magyarországi Egyetem, Erdőmérnöki Kar, Geomatikai, Erdőfeltárási és Vízgazdálkodási Intézet). KALICZ PÉTER PhD, okleveles környezetmérnök, egyetemi docens (Nyugat-magyarországi Egyetem, Erdőmérnöki Kar, Geomatikai, Erdőfeltárási és Vízgazdálkodási Intézet). GRIBOVSZKI ZOLTÁN PhD, PhD, okleveles erdőmérnök, egyetemi szakmérnök, vízépítő, vízkészlet-feltárás, vízrajz, egyetemi docens (Nyugat-magyarországi Egyetem, Erdőmémöki Kar, Geomatikai, Erdőfeltárási és Vízgazdálkodási Intézet). Estimation of annual sediment load of a forested catchment and examination of the effect of an alluvial fan Csáfordi, P. - Kalicz, P. - Gribovszki, Z. Abstract: Sediment transport of forested catchments has strong spatial and temporal fluctuation, to which the periodical filling up and washing out of natural and artificial alluvial fans also contributes. Knowledge of dynamics of sediment transport is important for technical reasons and environmental protection. Total sediment yield has been calculated for the period between October 2008 and October 2009 with suspended sediment transport model and measuring of bedload in a side valley of Sopron Hills. Other methods were used for calculating suspended sediment yield of the rising and falling limb of flood waves and for the discharge range which was above respectively under the medium flow. Antecedent precipitation index and rainfall erosivity were also considered besides the discharge at flood waves. Significant alluvial fan was accumulated in the channel of the stream in front of a culvert, which hindered the stream to across under the road. The alluvial fan was artificially set in motion, and sediment excess as an effect of the moving alluvial fan has been determined in the stream by geodetic techniques and trend analysis. Keywords: suspended sediment transport model, alluvial fan, forested catchment.