The changes of erosion and siltation of Luokou to Lijin watercourse since the Xiaolangdi Reservoir
According Xiaolangdi Reservoir 2002~2015 years of water and sediment regulation data,situation of erosion and siltation of watercourse of Luokou to Lijin was analyzed, that water and sediment regulation to make Luokou to Lijin river erosion significantly, the cross-sectional shape of the main channel to the sound development, bankfull discharge increased,flow capacity greatly enhanced,but in recent years, sediment regulation data show that river erosion weakened, erosion efficiency reduced,riverbed coarsening,the main channel flow capacity has been basically stable.
water and sediment regulationerosion and siltationflow capacity