That would be "irrigation."
Irrigation
Satro
it is called irrigation
It sounds like you're referring to irrigation, where water is diverted by ditches and canals to make land more suitable for planting crops. Irrigation ditches can divert water from free-flowing rivers and streams or from reservoirs created by dams.
I think canals always have water and ditches only sometimes do
irrigationIrrigation
It is irrigation
The word is irrigation.
The water is controlled by dikes and ditches.
They established canals and ditches.
Sadly, the canals on Mars do not exist. although several astronomers reported seeing them, the canals are now believed to have been a combination of optical illusion and self-delusion.
Rivers, creeks, dams, canals and irrigation ditches.
pipe prevent water from evaporation.
Irrigation