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Assessment of sediment connectiv.ty using modelling and field-based approaches in the slav.č Riv.r catchment(Morav.koslezskéBeskydy Mts,Czech Republic)

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Journal of Mountain Science 2024年第3期21卷 734-753页

作者： MACUROv. Tereza ŠKARPICH v.clav Department of Physical Geography and Geoecology Faculty of ScienceUniversity of OstravaChittussiho 1071000 OstravaCzech Republic

Mountain streams act as conv.yors of sediments within the riv.r continuum,where the physical transport of sediments between riv.r reaches through the catchment or between indiv.dual parts(e.g.,between hillslopes and channels)of the catchment is *** study focused on sediment connectiv.ty analysis in the slav.čRiv.r catchment in the Morav.koslezskéBeskydy Mts in the eastern part of the Czech *** connectiv.ty index and connectiv.ty index target modelling were combined with an analysis of anthropogenic ***,field mapping,grain size of bed sediments and stream power analysis were used to obtain information about connectiv.ty in the *** on the analysis and obtained results,terrain topography is the current main driv.ng factor affecting the connectiv.ty of sediment mov.ment in the slav.čRiv.r ***,the modelling prov.ded v.luable information about high sediment connectiv.ty despite different recent land use conditions(highly forested area of the catchment)than those in historical times from the 16th to 19th centuries when the slav.čRiv.r catchment was highly deforested and sediment connectiv.ty was probably *** analysis of anthropogenic interv.ntions,field mapping,grain size of bed sediments and stream power analysis rev.aled more deceleration of sediment mov.ment through the catchment,decreased sediment connectiv.ty with bed erosion,and gradual riv.r channel process transformation in some *** mapping has identified v.rious natural formations and human-induced changes impacting the longitudinal and lateral connectiv.ty in the slav.č*** instance,embankments along 48%of the riv.r's length,both on the right and left banks,significantly hinder lateral sediment supply to the *** power index analysis indicates increased energy lev.ls in the flowing water in the riv.r's upper reaches(up to 404.8 W m^(-2)).This high energy is also observ.d in certain downstream sections(up to 337.6 W

关键词： Mountain stream Connectiv.ty analysis Modelling Grain size analysis slav.čRiv.r Morav.koslezskéBeskydy Mts

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