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Long-term progress in water quality after grassing and fertilization reduction in spring areas of the Šumava Mountains

Author

Listed:
  • Pavel Žlábek

    (Department of Land Adjustment, Faculty of Agriculture, University of South Bohemia, České Budějovice, Czech Republic)

  • Václav Bystřický

    (Department of Land Adjustment, Faculty of Agriculture, University of South Bohemia, České Budějovice, Czech Republic)

  • Pavel Ondr

    (Department of Land Adjustment, Faculty of Agriculture, University of South Bohemia, České Budějovice, Czech Republic)

  • Tomáš Kvítek

    (Department of Land Adjustment, Faculty of Agriculture, University of South Bohemia, České Budějovice, Czech Republic)

  • Petr Lechner

    (Department of Land Adjustment, Faculty of Agriculture, University of South Bohemia, České Budějovice, Czech Republic)

Abstract

The changes in water quality caused by grassing of arable land followed by the reduction in the use of fertilisers after 1989 are demonstrated on an example of two tile-drained subcatchments in spring areas in the Šumava Mountains. The original water quality monitoring was performed in the mid-1980s, at the time when the area was used as tile-drained arable land. The monitoring was renewed in 2004 under different, i.e. extensive, land use conditions. The principal reason for the new monitoring at the site was to see what sort of changes, if any, in water quality had occurred in the location, particularly in terms of nitrate nitrogen leaching. The concentrations and ranges of the values of all water quality indices monitored decreased after grassing. The average nitrate concentration of 39.5 mg/l (min. 9.2 mg/l, max. 104.8 mg/l) in 1983-1985 dropped to 17.5 mg/l (min. 3.5 mg/l, max. 33.3 mg/l) in 2005-2007. The greatest decrease (by 85%) was found in average ammonium concentrations. A positive effect of current agricultural management in foothill areas on the reduction of all water quality parameters monitored was confirmed.

Suggested Citation

  • Pavel Žlábek & Václav Bystřický & Pavel Ondr & Tomáš Kvítek & Petr Lechner, 2008. "Long-term progress in water quality after grassing and fertilization reduction in spring areas of the Šumava Mountains," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 3(3), pages 121-128.
    • Handle: RePEc:caa:jnlswr:v:3:y:2008:i:3:id:3-2008-swr
    DOI: 10.17221/3/2008-SWR
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