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प्रश्न
What is meant by the terms ‘soil erosion’ and ‘soil conservation’?
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उत्तर
Soil erosion refers to washing away or removal of the layer of soil by various agents like running water and wind.
Sheet erosion and gully erosion are the two most common ways by which soil gets eroded. When there is heavy rainfall, the top layer of soil over large areas gets washed away. This is known as sheet erosion. When rainwater in region flows down the slopes making deep and narrow furrows, it is called gully erosion. Soil erosion also refers to the loss of fertility of soil, which makes the soil infertile and exhausted.
Cutting down the trees and forests, overgrazing by animals, floods, and improper farming practices are some of the main causes of soil erosion.
Soil conservation is the protecting of soil against erosion and exhaustion by planting trees, shrubs and grass on hill slopes.
Soil can be conserved by controlling grazing of cattle and use of proper farming methods such as the levelling of fields, terracing of hill slopes, construction of mud walls or bunds and ploughing fields in circles.
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संबंधित प्रश्न
Name any four agents of erosion.
What are the components of topsoil?
Name the various methods of conserving soil.
Why is soil conservation important? Give three reasons.
Explain any two methods of soil conservation briefly.
Form pairs or groups of three or four students and discuss, with examples, how we depend directly and indirectly on soil.
Soil conservation measures are mainly aimed at protecting which of the following?
Read the following statements with reference to soil.
- Weathering is a very fast process of soil formation.
- Percolation of water is faster in sandy soils.
- Loamy soil contains only sand and clay.
- Top soil contains the maximum amount of humus.
Choose the correct statements from the above.
Unscramble the following jumbled word related to soil.
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Several terms related to soil are hidden in the squares given in figure. Spot them and make a list. Two examples are given for you.
