The Arab world is located in the northern hemisphere between the equator and the Tropic of Cancer in the hyper-arid regions and arid planet. In this environment hostile to life, the Arabs have developed the technical to develop foggara oases on the passage of caravans and trade. Foggaras about 4200 are in operation today on a number 11500 dug in 16 Arab countries. The Sultanate of Oman tops Arab countries concerning the use of this technical. 3017 aflaj be involved in the irrigation of gardens in many oases of Oman. Algeria, with 903 functional foggaras is ranked second. Over 150 khettara are still operating in the region Tafilalt, Morocco is in third place. About 30 qanats Romani are still functional in the oases of Syria. Water flows again in a few tens of qanats throughout Yemen, Saudi Arabia, its UAE, Jordan and Tunisia. The foggaras are off and abandoned in Iraq. Remains and traces of foggaras have been identified in ancient oases of Libya and Egypt.

The Arab world is located in the northern hemisphere between the equator and the Tropic of Cancer in the hyper-arid regions and arid planet. In this environment hostile to life, the Arabs have developed the technical to develop foggara oases on the passage of caravans and trade. Foggaras about 4200 ...