erosion control; sabo
Technical term for measures against sediment-related disasters, including erosion control, landslide prevention, and debris flow countermeasures. Often used in compound words like 砂防ダム (sabo dam).
Erosion control works are being carried out in this area.
The sabo dam was built to prevent debris flows.
Erosion control measures are being carried out in this mountainous area.
The prefecture is advancing an erosion control project.
防災 is the broad term for disaster prevention in general, whereas 砂防 is the specialized field dealing only with sediment-related hazards like landslides and debris flows.
erosion-control forest
erosion control dam; debris barrier
erosion control-designated area
Compound of 砂 (sand) and 防 (prevent), literally 'sand prevention'. The term was coined in the context of modern civil engineering for erosion and sediment control.