Irrigation water losses

Name(s): 
Evaporation water losses
Water losses from dams
Water losses from irrigation canals
Nature 
In hot, dry areas of the world evaporation rates from open surfaces can exceed local rainfall.
Incidence 
Up to 45% of irrigation water is lost and never reaches the plants it was meant for.
Value(s) 
Type 
(E) Emanations of other problems