Flood sediment deposition and phosphorus retention in a lowland river floodplain: impact on water quality of a reservoir, Sulejów, Poland

In the Pilica River floodplain, the mass of fine-grain flood sediments amounts to an average of 84.8 g m−2. The phosphorus (P) content of fine-grain flood sediments averaged to 3.3 mg g−1 (d. w.). The sedimentation in the experimental Pilica River floodplain reduces the transport of flood sediments (25.3 t yr−1) and P (mean 38.2 kg floodplain−1 yr−1) to the reservoir and that's why contribute to reduction of symptoms of eutrophication.