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Influence of drainage system maintenance on storm runoff from a reforested, waterlogged mountain catchment

Author

Listed:
  • Vladimír Černohous

    (Forestry and Game Management Research Institute, Opočno Research Station, Opočno, Czech Republic)

  • Vladimír Švihla

    (Beroun, Czech Republic)

  • František Šach

    (Forestry and Game Management Research Institute, Opočno Research Station, Opočno, Czech Republic)

  • Dušan Kacálek

    (Forestry and Game Management Research Institute, Opočno Research Station, Opočno, Czech Republic)

Abstract

The maintenance of a drainage system in a waterlogged mountain catchment impacted by earlier harvesting operations was assessed on the basis of a hydrological analysis (hydrological balance, three linear reservoirs method). To restore pre-harvest hydrological conditions, the water-saturated localities were experimentally drained both by restoration of existing ditches and digging of additional open ditches. The rainwater retention of the soil was illustrated by two comparable storm flow events occurring before and after the draining treatment. Pedohydrological analysis revealed the important involvement of static retention in capillary pores in the rainfall-runoff process during rainstorm events. Restoration and addition of the drainage system yield more favourable generation and better proportioned distribution of storm flow discharge. There would be no danger of water depletion in the catchment during dry periods in connection with the draining treatment. In comparison with the state before drainage system maintenance, the static retention after draining treatment became greater than zero. Both the dynamic retention (detention) and static retention helped balancing storm flows in terms of flood and drought control. The successive drop of the raised water table level following drainage system maintenance resulted in changes of actual retention and subsequent runoff. The drainage procedure proved its positive influence on reforestation and the environment, as no negative impact on soil and stream hydrology was found.

Suggested Citation

  • Vladimír Černohous & Vladimír Švihla & František Šach & Dušan Kacálek, 2014. "Influence of drainage system maintenance on storm runoff from a reforested, waterlogged mountain catchment," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 9(2), pages 90-96.
    • Handle: RePEc:caa:jnlswr:v:9:y:2014:i:2:id:54-2013-swr
    DOI: 10.17221/54/2013-SWR
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    References listed on IDEAS

    as
    1. Ladislav Holko & Zdeněk Kostka & Martin Šanda, 2011. "Assessment of frequency and areal extent of overland flow generation in a forested mountain catchment," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 6(1), pages 43-53.
    2. V. Černohous & F. Šach & D. Kacálek, 2010. "Effects of drainage treatment and stand growth on changes in runoff components from a forested watershed," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 56(7), pages 307-313.
    3. V. Černohous & P. Kovář, 2009. "Forest watershed runoff changes determined using the unit hydrograph method," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 55(2), pages 89-95.
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