Pivot Irrigation Fields
Wadi As-Sirhan Basin, Saudi Arabia
Center pivot irrigation is used throughout the Wadi As-Sirhan Basin of Saudi Arabia. Water is mined from depths as great as one kilometer (~3,000 ft), pumped to the surface, and evenly distributed by sprinklers that rotate 360 degrees. Spurred by a government effort to strengthen its agriculture sector, cultivated land in Saudi Arabia grew from 400,000 acres in 1976 to more than 8 million acres by 1993. For a sense of scale, the total area shown in this Overview is approximately forty square miles (32,000 acres).