Articles | Volume 25, issue 2
Hydrol. Earth Syst. Sci., 25, 497–509, 2021
Hydrol. Earth Syst. Sci., 25, 497–509, 2021

Research article 02 Feb 2021

Research article | 02 Feb 2021

Pesticide peak concentration reduction in a small vegetated treatment system controlled by chemograph shape

Jan Greiwe et al.

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Cited articles

Beketov, M. A., Kefford, B. J., Schäfer, R. B., and Liess, M.: Pesticides reduce regional biodiversity of stream invertebrates, P. Natl. Acad. Sci. USA, 110, 11039–11043,, 2013. 
Bos, M. G.: Discharge measurement structures, International Institute for Land Reclamation and Improvement, Wageningen, the Netherlands, 1989. 
Bundschuh, M., Elsaesser, D., Stang, C., and Schulz, R.: Mitigation of fungicide pollution in detention ponds and vegetated ditches within a vine-growing area in Germany, Ecol. Eng., 89, 121–130,, 2016. 
Doppler, T., Camenzuli, L., Hirzel, G., Krauss, M., Lück, A., and Stamm, C.: Spatial variability of herbicide mobilisation and transport at catchment scale: insights from a field experiment, Hydrol. Earth Syst. Sci., 16, 1947–1967,, 2012. 
Doppler, T., Lück, A., Camenzuli, L., Krauss, M., and Stamm, C.: Critical source areas for herbicides can change location depending on rain events, Agr. Ecosyst. Environ., 192, 85–94,, 2014. 
Short summary
We investigated the linkage between contaminant mobilization in catchments and their mitigation in vegetated treatment systems (VTSs). We identified different patterns in chemographs recorded at the inlet of a VTS, indicating distinct mobilization patterns that were associated with similar source areas, transport pathways, and discharge dynamics. Peak concentration reduction in the VTS was strongest for sharp-peaked chemographs, suggesting that dispersion was the principle mitigation process.