Step 1: Understanding the Concept:
Mechanical and engineering soil conservation measures are implemented based on land slope and erosion hazard.
Step 2: Detailed Explanation:
Terracing (including bench terracing and contour bunding) involves constructing stepped, level platforms across steep slopes on hillsides.
This breaks long, steep slopes into a series of short, gentle steps, reducing surface runoff velocity, increasing rainwater infiltration, and controlling severe soil erosion in hilly terrains.
Step 3: Final Answer:
Therefore, terracing is an effective method of soil conservation in hilly areas.