Question

Canals are a channel for supply of water from rivers to the farm fields. The perennial canals are not only an advantage but can be disadvantageous too. The perennial canals are functional in the state of Punjab due to the favourable situations available there.

1. What conditions favour the development of canal irrigation in the mentioned area?
2. State two disadvantages of it.

Answer 1

1. Conditions favoring the development of perennial canal irrigation in Punjab:
   • Presence of numerous perennial rivers supplying water throughout the year.
   • Flat topography which facilitates extensive canal construction.
   • Soft soil that makes canal construction easier.
   • These favorable natural conditions make canal irrigation functional and efficient in Punjab.
2. Two disadvantages of perennial canals:
   • Excess supply of water can render the land infertile and unsuitable for agriculture in the long run.
   • Constant water logging in nearby areas leads to reduced soil fertility and increased soil salinity.