Water quality characteristics of vegetated groundwater-fed ditches in a riparian peatland

The Science of the Total Environment
Miklas Scholz, Michael Trepel

Abstract

The Environmental Ministry of Schleswig-Holstein (Northern Germany) has implemented a novel peatland rehabilitation programme to utilise the high denitrification potential of degenerated, minerotrophic peatlands for the reduction of nitrate input into aquatic ecosystems, and to simultaneously improve the habitat conditions. Realisation of both goals requires changes to the water management adapted to the site-specific geohydrological conditions. The effect of raised groundwater levels and extensive land use on the water quality of heavily vegetated and groundwater-fed ditches was investigated in a riparian peatland located in the River Eider Valley (a nationally important wetland case study area). The water quality of the selected representative ditches was regularly assessed at different discharge levels during different flow obstruction cover periods. The hydraulic residence time was predominantly a function of the ditch geometry and the overall flow obstruction. A better understanding of the effect of ditch vegetation on the temporal flow patterns and the hydraulic residence times is of high environmental interest, especially for improving nutrient standards in lowland rivers such as the River Eider. Within-ditch vegetation ...Continue Reading

References

Jun 19, 2003·The Science of the Total Environment·T P Burt

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Citations

Jul 3, 2008·Environmental Management·Ahmet SerteserMuhsin Konuk
Jun 10, 2011·The Journal of Experimental Biology·Roger S Seymour, Stefan K Hetz

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