Class 8 Biology Conservation of Plants Animals Consequences of deforestation

Consequences of deforestation

  • Deforestation imparts devastating effects on the natural balance of earth. The devastating consequences of deforestation are as follows:
  • It leads to a decrease in the rainfall and hence lowers the level of ground water. This may lead to situation called droughts where people suffers from scarcity of water and hunger.

  • Plants take in the carbon-dioxide during the process of photosynthesis and gives exhales oxygen. But less number of trees leads to an increase in the level of carbon-dioxide in the atmosphere.
  • This leads to an increase in the temperature and level of pollution on earth.
  • The increased tempearture alters the water cycle and leads to reduction of rainfall. This results in occurrence of a situation called drought.
  • It also results in the alteration of properties of soil. Deforestation leads to soil erossion because roots of plants holds the soil firmly and hence prevents soil erossion.
  • But lesser number of trees results in removal of top layer of soil which in turn exposes the lower portion of soil which is hard, rocky, contains less humus and is less fertile. This way a fertile land gets converted to a barren land. This is called desertification.
  • Deforestation also reduces the water holding capacity of soil due which in turn reduces the movement of water to the lower ground from the upper part of the ground resulting in the increased chances of flood.

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