Question

What are the three advantages of canal irrigation?

Answer 1

1. Regulated Year-Round Water Supply: Perennial canals connect to big, permanent dams and barrages erected across important rivers. This setup offers a controlled, constant, and extremely dependable supply of water to agricultural areas, even during the dry summer months when there is no rain.
2. Massive Coverage and Arid Land Reclamation: Canals can carry huge volumes of water across long distances, allowing for extensive coverage and arid land reclamation. This capability enables them to irrigate enormous, contiguous swaths of farmland and convert utterly dry, arid, or desert zones (such as the Thar Desert via the Indira Gandhi Canal) into extremely productive agricultural belts.
3. Multi-Purpose Infrastructure Benefits: The large-scale river valley projects that feed water to canal networks serve multiple purposes. Beyond field irrigation, the dams regulate large seasonal floods, provide clean hydroelectric power, promote local fish farming, and supply safe drinking water to adjacent towns and cities.