Riparian vegetation as a marker for bankfull and management discharge evaluation: The case study of Rio Torbido river basin (central Italy)


  • Ciro Apollonio Department of Agriculture and Forest Sciences (DAFNE), Tuscia University, Viterbo, Italy.
  • Andrea Petroselli | Department of Economy, Engineering, Society and Business (DEIM), Tuscia University, Viterbo, Italy.
  • Paolo Cornelini Italian Association for Soil and Water Bioengineering (AIPIN), Florence, Italy.
  • Vito Manzari Department of Landscape and Biodiversity, City of Annecy, France.
  • Federico Preti Italian Association for Soil and Water Bioengineering (AIPIN), Florence, Italy; Department of Agricultural, Food, Environmental and Forestry Sciences and Technologies, University of Florence, Florence, Italy.
  • Salvatore Grimaldi Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), Tuscia University, Viterbo, Italy.


Bankfull discharge estimation is a crucial step in river basin management. Such evaluation can be carried out using hydrological and hydraulic modelling to estimate flow-depths, flow velocities and flood prone areas related to a specific return period. However, different methodological approaches are described in the scientific literature. Such approaches are typically based either on the assumption that the bankfull discharge corresponds to a narrow range of return periods, or on the correlation to the river geomorphological or local descriptors, such as vegetation. In this study, we used high-resolution topographic data and a combined hydrological-hydraulic modelling approach in order to estimate bankfull discharge in the ungauged basin of Rio Torbido River (Central Italy). The field survey of plant species made it possible to investigate the link between the riparian areas and the bankfull discharge. Our results were in line with previous studies and showed a promising agreement between the results of the hydraulic modelling and the plant species present in the investigated river cross sections. The plant species position could be indeed used for a preliminary delineation of the riparian areas to be verified more deeply with the hydrological-hydraulic approach.



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Original Articles
Bankfull discharge, bank vegetation, floristic indicators, hydraulic modelling, hydrological modelling, riparian vegetation, unmanned aerial vehicle.
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How to Cite
Apollonio, C., Petroselli, A., Cornelini, P., Manzari, V., Preti, F., & Grimaldi, S. (2021). Riparian vegetation as a marker for bankfull and management discharge evaluation: The case study of Rio Torbido river basin (central Italy). Journal of Agricultural Engineering, 52(2).

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