Linked from
The 127 pages that link to Irrigation, each with the reason it gives.
Syr DaryaNarrower topic: Canals divert Syr Darya water to fields across the basin.
Rio GrandeNarrower topic: Diversion from the river has made agriculture possible in arid valleys.
Don RiverNarrower topic: Water from the Don basin supports agriculture in a region with dry summers.
Orontes RiverNarrower topic: Orontes water sustains agriculture across its Syrian valley.
Euphrates DamNarrower topic: Stored water is released to support agricultural irrigation downstream.
HetaoNarrower topic: Hetao is an example of large-scale irrigation in a dry region.
ShadoofNarrower topic: The shadoof is a simple irrigation technology for moving water onto fields.