<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this study, the influence of riverbed silting on the groundwater regime in a lowland area was investigated. The study area is situated at the Rye Island (Žitný Ostrov) in Slovakia, along the Gabčíkovo – Topoľníky canal, which is part of the drainage-irrigation canal system constructed in this locality. The Rye Island is an area with very low slope (0.25 10<sup>–4</sup>) and good climatic conditions for aquatic vegetation, therefore the canals are influenced by intensive silting processes. The spatial and temporal patterns of surface water – groundwater exchange are significantly influenced by the thickness of riverbed sediments and their permeability. The aim of this study was to evaluate the thickness and hydraulic conductivity of bed sediments in the Gabčíkovo – Topoľníky canal and to examine their influence on the groundwater – surface water interaction in the area. The hydraulic conductivity of the sediments was assessed from undisturbed samples by the falling head method. The obtained data were used for numerical simulations of groundwater heads by the TRIWACO model for different drainage and infiltration resistance conditions in the area of interest. The results of this study can support the planning of canal maintenance.</p>
</abstract>

In this study, the influence of riverbed silting on the groundwater regime in a lowland area was investigated. The study area is situated at the Rye Island (Žitný Ostrov) in Slovakia, along the Gabčíkovo – Topoľníky canal, which is part of the drainage-irrigation canal system constructed in this locality. The Rye Island is an area with very low slope (0.25 10–4) and good climatic conditions for aquatic vegetation, therefore the canals are influenced by intensive silting processes. The spatial and temporal patterns of surface water – groundwater exchange are significantly influenced by the thickness of riverbed sediments and their permeability. The aim of this study was to evaluate the thickness and hydraulic conductivity of bed sediments in the Gabčíkovo – Topoľníky canal and to examine their influence on the groundwater – surface water interaction in the area. The hydraulic conductivity of the sediments was assessed from undisturbed samples by the falling head method. The obtained data were used for numerical simulations of groundwater heads by the TRIWACO model for different drainage and infiltration resistance conditions in the area of interest. The results of this study can support the planning of canal maintenance.

Impacts of riverbed aggradation on groundwater regime in a lowland area

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Impacts of riverbed aggradation on groundwater regime in a lowland area"}

In this study, the influence of riverbed silting on the groundwater regime in a lowland area was investigated. The study area is situated at the Rye Island...

Impacts of riverbed aggradation on groundwater regime in a lowland area

Publié en ligne: 09 mai 2024

Pages: 185 - 198

Reçu: 19 avr. 2023

Accepté: 11 janv. 2024

DOI: https://doi.org/10.2478/johh-2024-0002

Mots clés
Groundwater – surface water interaction, Groundwater heads, Numerical modelling, TRIWACO, Sediment deposits, Rye Island

© 2024 Márta Koczka Bara et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Impacts of riverbed aggradation on groundwater regime in a lowland area

Publié en ligne: 09 mai 2024

Pages: 185 - 198

Reçu: 19 avr. 2023

Accepté: 11 janv. 2024

DOI: https://doi.org/10.2478/johh-2024-0002

Mots clésGroundwater – surface water interaction, Groundwater heads, Numerical modelling, TRIWACO, Sediment deposits, Rye Island

© 2024 Márta Koczka Bara et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
Groundwater – surface water interaction, Groundwater heads, Numerical modelling, TRIWACO, Sediment deposits, Rye Island