Tag: the soil

• Soil conservation is a method of protecting soil from getting eroded either by wind or by water.
  
• Soil erosion is also caused due to defective methods of farming. Ploughing in a wrong way i.e. up and down the slope form channels for the quick flow of water leading to soil erosion. 
  
• The rest of the methods help in soil conservation.
  

Arid soils develop due to high temperature and evaporation.

On hilly slopes, terraces act as bunds and prevent the soil from being washed away by running water. 

• Soil erosion is the loss of top fertile layer of soil either by wind or by water.
  
• India is facing this problem in many parts. The area affected by soil erosion is 5, 00,000 square kilometres. It adversely affects productivity and economy of the country.
  
• There are many techniques to prevent soil erosion. But important step is to increase planting of trees or afforestation.
  

• Arid soils range from red to brown in colour. 
  
• They are generally sandy in texture and saline in nature. In some areas the salt content is very high and common salt is obtained by evaporating the water. 
  
• Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture. 
  
• After proper irrigation these soils become cultivable as has been in the case of western Rajasthan.
  

Strip cropping is a method or farming in which more than one variety of crops are grown in different strips.

One of the important crop that is usually grown along with other crops is gram. This is because it has good soil holding capacity and prevents soil erosion.

Moraines is any glacially formed accumulation of unconsolidated glacial debris that occus in both currently and formerly glaciated regions on the earth. These are formed of the debris of glaciers. They are not formed due to river erosions.