Prevent river banks from scouring and collapsing. The significance of the Chongling River slope protection project in Changning is to prevent river embankments from scouring and collapsing during rainy days and during flood discharges. The purpose is to create a smooth and continuous protective layer along the embankments and embankment slopes to protect the safety of riverside organisms. Changning, affiliated to Hunan Province, is a county-level city managed by Hengyang City.