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Variability of Suspended Sediment Runoff as an Expression of the Long-Term Dynamics of Loess Gully Development—An Example from the Lublin Upland (Eastern Poland)

Author

Listed:
  • Jan Rodzik

    (Institute of Earth and Environmental Sciences, Maria Curie-Skłodowska University in Lublin, 20-718 Lublin, Poland)

  • Grzegorz Janicki

    (Institute of Earth and Environmental Sciences, Maria Curie-Skłodowska University in Lublin, 20-718 Lublin, Poland)

  • Krzysztof Stępniewski

    (Institute of Earth and Environmental Sciences, Maria Curie-Skłodowska University in Lublin, 20-718 Lublin, Poland)

  • Waldemar Kociuba

    (Institute of Earth and Environmental Sciences, Maria Curie-Skłodowska University in Lublin, 20-718 Lublin, Poland)

Abstract

In the 20-year period from 2003 to 2022, water runoff and suspended sediment load in a forested gully system with a total length of 7.5 km was recorded. The branching gully system cuts through an agricultural catchment of 1.24 km 2 located within the loess plateau of the Nałęczów Plateau (E Poland). A rain gauge was installed close to the watershed and in the gully mouth water runoff was monitored using a limnigraph, installed with a water gauge on a Thomson triangular weir. To determine suspended sediment concentrations during erosion episodes, water was sampled at a frequency dependent on the rate and duration of the runoff. The aim of the monitoring studies was to specify the relationship between flow rate and suspended concentration for different water runoff conditions, which were used to calculate sediment load. The contribution of propluvial and pronivial runoff to gully development was assessed, particularly in the transport of sediment out of the catchment, and unit denudation rates were calculated as less than 1000 Mg km −2 year −1 , average 173 Mg km −2 year −1 , and during a single event as a maximal 900 Mg km −2 .

Suggested Citation

  • Jan Rodzik & Grzegorz Janicki & Krzysztof Stępniewski & Waldemar Kociuba, 2024. "Variability of Suspended Sediment Runoff as an Expression of the Long-Term Dynamics of Loess Gully Development—An Example from the Lublin Upland (Eastern Poland)," Land, MDPI, vol. 13(12), pages 1-21, December.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:12:p:2222-:d:1547296
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    References listed on IDEAS

    as
    1. Waldemar Kociuba & Grzegorz Janicki & Jan Rodzik & Krzysztof Stępniewski, 2015. "Comparison of volumetric and remote sensing methods (TLS) for assessing the development of a permanent forested loess gully," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 79(1), pages 139-158, November.
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