Compare the advantages and disadvantages of multipurpose river projects

Q.2 (iii):- Compare the advantages and disadvantages of multipurpose river projects

 

Answer :-

The various advantages and disadvantages of multipurpose river projects can be compared as follows:

Advantages

Disadvantages

a.  Irrigation

b.  Electricity generation

c. Water supply for industrial and domestic purposes

d. Flood control

e.  Amusement

f.  Inland navigation

g.  Fish breeding

a. Natural flow of river is affected causing poor flow of sediments also

b. Excessive sedimentation of the reservoir

c. Stream beds become rockier

d. Dam fragments a river thus making it difficult for aquatic fauna to migrate, and for spawning

e. Reservoirs submerge the existing vegetation and soil leading to its decomposition over time.

f. Deforestation and displacement of local people.