Which of the following methods are used for conservation of soil?

1. Mulching

2. Contour Barriers

3. Rock Dam

4. Inter Cropping

5. Shelter Belt

6. Terrace farming

Select the correct answer using the code given below.

The correct answer is 1, 2, 3, 4, 5, 6.

Key Points

• There are the following methods of soil conservation:
  • Mulching: The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture.
  • Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
  • Rock dam: Rocks are piled up to slow down the flow of water. This prevents gullies and further soil loss.
  • Terrace farming: These are made on steep slopes so that flat surfaces are available to grow crops. They can reduce surface run-off and soil erosion.
  • Intercropping: Different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash.
  • Contour ploughing: Ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope.
  • Shelter belts: In the coastal and dry regions, rows of trees are planted to check the wind movement to protect soil cover.