Question

What are the advantages and disadvantages of multipurpose river project for 0 geograpghy ncrt?

Answer 1

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.

Answer 2

Answer:

Compare the advantages and disadvantages of multipurpose projects.

Ans. Advantage:-

1. Flood control:- River valley projects control the flood and thereby check soil erosion.

2. Irrigation:- They provide water for irrigation in the command area during dry

Seasons.

3. Electricity generation:- These projects are the main source of power. They ensure

regular electricity for Industrial and household purposes.

4. Inland navigation:- River valley projects provide inland water navigation through the

main river and Canal that link different regions.

5. Fish breeding:- This provides ideal conditions for the development of fisheries.

6. Amusement:- People in large numbers come here as tourists and recreate themself

in boating on the canals and reservoirs.

Disadvantages

1. Displacement of local communities:- The building of large dams result in

displacement of local communities. The displaced people do not get full rehabilitation

facilities from the government.

2. Adverse impact on aquatic life:- Due to construction of dams on the rivers, the fish

in the downstream area do not get sufficient nutrient material.

3. Change in the cropping pattern:- Most of the farmers have changed the cropping

patterns sifting to cultivation of water intensive and commercial crops.

4. Increase the social gap:- River valley project has transformed the social gap

between rich landlords and the landless poor.

5. Excessive sedimentation:- Regulating and damming of rivers affect the natural flow

and excessive sedimentation at the bottom of the reservoir.