PPT Slide
The Zabol salient (see slide 3 for location) is documented as having been the breadbasket of Persia. Dams impounding water for modern irrigation, first con- structed upstream in Afghanistan and later in Iran, now send more brackish water through the canal system, and the land is rapidly becoming salinized, reducing its fertility. The surface salts are easily visible.
Farmers must remove 2-3 cm of accumulated surface salts each year.