Question

What are the demerits and merits of canal irrigation in India?

Answer 1

Hint: Irrigation canals are the principal streams that bring water system water from a water source to the territories to be inundated. They can be fixed with solid, block, stone, or an adaptable film to forestall leakage and disintegration.

Complete step-by-step solution:
Merits of Canal Irrigation:
Un-inundated Bad Lands can be created by the trench water system, which would build the amount of biomass in the zone.
Monetary improvement can be facilitated by maintaining a strategic distance from hazardous dry seasons. Reliance on precipitation can be limited through trench improvement.
Channels are taken care of by water got by streams, and the water is utilized for the water system. The creation of yields requiring more water is likewise conceivable through channels. When contrasted with un-flooded soils, higher profitability per hectare is additionally conceivable because of trenches.
Trench framework is a lasting structure, thus just upkeep is needed for getting its advantages for quite a while.
Channels are multi-reason where separated from water system hydroelectricity age, route, drinking water supply, and fishery improvement is additionally done.
Demerits of Canal Irrigation:
Because of irregularity in the circulation of trench water, a circumstance of shortage someplace and water signing in different zones is caused because of the assortment of water there. It makes the dirt useless as unsafe underground salts and alkalis rise to the top level due to waterlogging. Land can likewise get mucky there.
Numerous illnesses are caused because of the spread of mosquitoes, worms, and creepy crawlies by virtue of fixed water in channels.
Now and then proficient channel the board brings about extreme creation of yields, because of which the ranchers can't get a reasonable cost for their item on the lookout.
Because of the lack of water in immersion waterways, crops are crushed for the need of water for the water system.
Standard support of waterways isn't done, because of which dregs are gathered bringing about a decrease in the limit of channels.

Note: At the point when the waterway goes through the sandy soil the leakage misfortune is at its most extreme and the trench is insecure. In this way, to make the trench totally impenetrable and sensibly steady, the most impenetrable sorts of linings should be suggested, for example, concrete cement and so on the perfection of the channel bed and sides builds the speed of stream which further increments.