Recently, the river dredging and beach landfill projects of the Zhanghe City
Heihecheng section ecological management project have been completed,
which was undertaken by the China Railway 20th Municipal Bureau. As one
of the key provincial projects, the project is of great significance for improving
the local climate, strengthening ecological environment protection, improving
water conservation capacity, and preventing soil erosion. It was used
silt curtains and excavator for river dredging.