Floodplain Connectivity

  • József DezsőEmail author
  • Dénes Lóczy
  • Ali Mohamed Salem
  • Gábor Nagy
Part of the Springer Geography book series (SPRINGERGEOGR)


Floodplains fulfil vital ecosystem services (supporting water management, biodiversity, agricultural production, ecotourism and others). Since a satisfactory water supply is indispensable for the provision of such services, in addition to longitudinal channel connectivity, lateral channel/floodplain hydrological connectivity is of primary importance. As a consequence of river regulation, however, floodplains shrunk considerably in area, ‘protected’ floodplains connection with the river channel which had produced them and became severely threatened ecosystems. In the Drava Plain, too, disconnected (or ‘geographically isolated’) oxbows became typical. With reduced surface connectivity, groundwater flow becomes the main driver of connecting processes (profundal type of oxbow). Effective porosity and hydraulic conductivity of alluvial deposits and seepage from an oxbow lake (the degree of clogging of floor deposits) were calculated to estimate groundwater movements and to reveal water exchange between oxbow lakes and the active river channel. Subsurface connectivity under drought conditions was simulated by hydrological modelling with the help of HYDRUS-1D and MODFLOW 6 packages. Planning rehabilitation efforts subsurface connectivity too should be considered.


Channel/floodplain connectivity Land drainage Groundwater flow Hydraulic conductivity Seepage Hydraulic modelling Rehabilitation 



The authors are grateful for financial support from the Hungarian National Scientific Fund (OTKA, contract no. 104552) and for cooperation with the South-Transdanubian Water Management Directorate.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • József Dezső
    • 1
    Email author
  • Dénes Lóczy
    • 1
  • Ali Mohamed Salem
    • 2
  • Gábor Nagy
    • 2
  1. 1.Department of Physical and Environmental GeographyInstitute of Geography and Earth Sciences, Faculty of Sciences, University of PécsPécsHungary
  2. 2.Earth Sciences Doctoral SchoolUniversity of PécsPécsHungary

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