Qanat Irrigation System

Timeline

1. 701–750Isfahan · IranAfter conquering Persia, the Umayyads inherited the vast Sasanian-era qanat network, continuing to maintain shafts and tunnels in central Iran and the edges of Mesopotamia to secure water supplies for oasis farmland and cities.
2. 750–800Baghdad · IraqAfter moving the capital to Baghdad, the Abbasid dynasty invested heavily in hydraulic works, repairing and building qanats and complementary surface canal systems on the Mesopotamian plain to meet the water needs of agriculture and gardens around the capital.
3. c. 700–800Turpan Basin · Turpan BasinQanat technology spread along the Silk Road into the Central Asian oases, where it was called kariz or qanat, forming dense underground irrigation networks in places like Turpan and Kashgar that became the lifeline of oasis agriculture at the desert's edge.