Rakaia River
New Zealand annual rainfall
Irrigated land
Soil drainage
Gold sluicing
Irrigation channels
Bob Semple in an irrigation pipe (1st of 3)
Rangitātā diversion race intake (2nd of 3)
Rangitātā diversion race (3rd of 3)
Winchmore Irrigation Research Station
Border dyke irrigation system
Irrigated and non-irrigated pasture (1st of 2)
Projected land use with and without irrigation (2nd of 2)
Dam water storage
Waitaki irrigation scheme
Centre pivot spray irrigation
Recreational use of water
Dairy cows and nitrate leaching
Lysimeters
Wild flooding
Border dyke irrigation
Traversing irrigation unit (1st of 3)
K-line irrigation (2nd of 3)
Moving irrigation unit (3rd of 3)
Drip irrigation
Measuring soil moisture
Open drains
Graded banks
Tile drains
Wetlands