2004 Volume 48 Pages 1519-1524
Field observations were conducted to investigate the transport process of fine particulate organic matter (FPOM) during a small flood in a lower reach of the Nanakita River. Sediment samples on riverbeds were collected at four stations before and after the flood. The flowing water was collected at three stations during the flood. The concentrations of suspended solid (SS) and particulate organic carbon (POC) were measured in both sediment and water samples. The total deposition and erosion rates of SS and POC were estimated from SS and POC in sediment samples. The time variation of the SS and POC concentrations, and the total transport rates were calculated from SS and POC concentrations in flowing water during the flood. The basic characteristics of the transport processes of SS and POC during a small flood in the Nanakita River were elucidated.
