FIELD OBSERVATION OF SUSPENDED SEDIMENT DEPOSITION BY USING SEDIMENT TRAPPING PANELS AND EXAMINATION OF SEDIMENT DEPOSITION RATE BY USING A SIMPLIFIED MODEL

In this study, a simplified sediment deposition rate model was proposed based on field observations of suspended sediment in vegetated areas of real rivers. As a field experiment, sediment trapping panels using simulated vegetation were installed in a small river to verify the physical properties of the deposited sediment. The results showed that the sediment deposited in the vegetated area was basically transported in the form of suspended sediment in the absence of renewal of riverbed materials by the bed load transport. The results by the presented model were of the same order of magnitude as the measured deposition rate.