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Advantage and disadvantage of multi-purpose river projects? |
| Answer» The advantages of multi-purpose river projects are as follows:\tWater can be stored in the form of reservoirs, which can be used for irrigation purposes.\tThey control or eliminate floods.\tThey help in the generation of electricity\xa0which is very much important for the development of the\xa0industry.\tThey can improve transportation as part of a canal system.\tThey are excellent for fish breeding and other aquatic species.\tThey also help in inland navigation. Such projects can create navigation facility in the country by developing ferrying services for transportation, raise fleet capacity and thereby can reduce the traffic load on rail and road transport.\tThe water can be used for domestic and industrial purpose.\tMulti-purpose projects can also facilitate to develop recreation facilities in the form of picnic resorts, holiday resorts etc. which are having much commercial viability nowadays.The disadvantages of multi-purpose river projects are as follows:\tThey cause large-scale displacement of local communities and submergence of trees and vegetation.\tRegulating and damming of rivers affect their natural flow, causing excessive sedimentation at the bottom of the reservoirs, adding to the problem of land degradation.\tDams fragment rivers, making it difficult for aquatic fauna to migrate.\tDams were constructed to control floods but they have triggered floods, devastating life and property and causing soil erosion.\tBig dams have been unsuccessful in controlling floods at the time of excessive rainfall.\tThey have induced earthquakes, caused waterborne diseases and pollution due to excessive use of water. | |