Holocene floodplain sediment storage and hillslope erosion within the Rhine catchment

摘要: The response of fluvial systems to land use and climate change varies depending on catchment size. While forcing-response mechanisms small catchments are reasonably well understood, the larger drainage basins is less clear. In particular, impact Rhine system poorly understood because size (185 000 km 2 ) long history human cultivation, which started approximately 7500 years ago. A sediment budget calculated specify amount alluvial that was deposited during Holocene estimate long-term soil erosion rates. results suggest 599 /14/10 9 t stored in non-alpine part (South Central Germany, Eastern France, Netherlands). About 50% along trunk valley delta (Upper Rhine, Lower coastal plain), while rest tributary valleys. floodplain storage corresponds a mean rate 0.559 /0.16 t/ha per yr (38.59 /10.7 mm/kyr) across outside Alps. This Holocene-averaged amounts for sediments were delivered channel network at lower limit rates from other studies different methodology.