Which of the following soil conservation methods involves planting rows of trees to create shelter and break the velocity of wind, particularly in arid and semi-arid regions?
Answer
D. Shelter belts
The correct answer is D. Shelter belts — Evaluate Shelter belts: Rows of trees planted specifically to break wind speed, which help in stabilizing sand dunes and deserts.
Step-by-step solution
- Analyze the problem: The question asks for a conservation method involving rows of trees to reduce wind force in dry regions.
- Evaluate Contour ploughing: Decelerates water flow along slope lines, not wind.
- Evaluate Terrace farming: Restricts soil erosion on mountain slopes caused by running water.
- Evaluate Strip cropping: Leaves grass strips between crops on fields to break wind force.
- Evaluate Shelter belts: Rows of trees planted specifically to break wind speed, which help in stabilizing sand dunes and deserts.
Common mistake: Confusing shelter belts with strip cropping, which uses grass strips between crop crops rather than entire rows of trees.
Concept tested: Soil conservation techniques
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