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  • 4 - Fluvial Processes

  • from Part II - Connectivity in Process Domains
  • Edited by Ronald Pöppl, BOKU University Vienna, Anthony Parsons, University of Sheffield, Saskia Keesstra, Wageningen Universiteit, The Netherlands
  • Book:
    Connectivity in Geomorphology
    Published online:
    10 April 2025
    Print publication:
    17 April 2025, pp 48-79

  • Summary

    This chapter discusses what is meant by connectivity in fluvial systems and how the connectivity approach differs from preceding research, the way in which it increases understanding of fluvial processes, and how knowledge of mechanisms and dynamics of processes fits into this framework. The focus is on longitudinal connectivity through river systems, mainly in large catchments and river channels and much of the attention is on sediment connectivity. The application of connectivity indices and graph theory are exemplified and the patterns, distributions and controls produced by connectivity analysis are demonstrated. Lateral connectivity is important in relation to the link of channels to floodplains and in maintaining functioning of wetlands. Recent developments of techniques and models have allowed additional factors to be incorporated and controls on connectivity of fluvial processes to be identified. The use of connectivity analysis as a framework is highly beneficial in management of fluvial systems and facilitates targeting of hotspots of sediment accumulation or depletion.