Water use in alluvial fans
Water use in alluvial fans refers to irrigation systems using the water resources in alluvial fans, mainly river floods and groundwater recharged by infiltration of rain or river water, to enhance the production of agricultural crops. == Background == Alluvial fans, also called inland deltas, occur at the foot of mountain ranges and mark the presence of river floods.
Source: Wikipedia — Water use in alluvial fans (CC BY-SA 4.0)