Q.

Which of the following is not a measure for soil conservation?


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a

Terrace cultivation

b

Strip cropping

c

Shelterbelts

d

Overdrawing of groundwater 

answer is D.

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Detailed Solution

Overdrawing groundwater is not a measure of soil conservation; rather, it depletes the water table in the area. Preventing the soil from reduced fertility or soil erosion is called soil conservation. Farmers put some soil conservation methods into effect to limit soil degradation.
1)      Strip cropping is a farming method that requires growing a field divided into long, thin strips in a crop rotation system. There are no other options to prevent soil erosion except strip cropping when the slope is too steep.
2)      Terrace farming is a method of cultivating crops on the slopes of mountains or hills by planting on graded terraces cut into the slopes, and it prevents soil erosion.
3)      Shelterbelts are rows of trees planted along fence lines. Shelter belts protect animals or plants from cold and give shade during summer.
4)      Overdrawing of groundwater leads to soil erosion. So, it cannot be the method of soil conservation.
 
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