variety of regional names: qanat or kārīz in Iran, foggara in Algeria, khettara in Morocco, falaj in Oman and the United Arab Emirates, karez in Afghanistan...

large houses, the Almoravids built an original hydraulic system called khettara. It is an underground drainage tunnel that brings water from the groundwater...

system draws from both surface waters and subterranean waters. A series of khettaras (a type of underground canal) draws subterranean waters from the phreatic...

of their fertility may derive from irrigation systems called foggaras, khettaras, lkhttarts, or a variety of other regional names. In some oases systems...

its water supply by creating the underground water system known as the khettara. In 1125, the preacher Ibn Tumart settled in Tin Mal in the mountains to...

ISBN 9783447020022. El Faiz, Mohammed; Ruf, Thierry (2010). "An Introduction to the Khettara in Morocco: Two Contrasting Cases". Water and Sustainability in Arid Regions:...

by Arab warriors, it was created during the Almoravid period, using a khettara network. The ancient tale (more than 1000 years old) refers to this garden...

(ဘုရားကိုးဆူ, lit. "Nine Deities") – This was a devotional rite performed by Khettara Brahmins. The deities referenced were either Buddhist: Buddha and the 8...

in a more arid environment, was supplied in large part by a system of khettaras, an ingenious and complex system by which an underground channel was dug...

of Arid Environments, 33(3), 321-336. Lightfoot, D. R. (1996). Moroccan khettara: traditional irrigation and progressive desiccation. Geoforum, 27(2), 261-273...

dry. Water was brought to the city and to the gardens by a network of khettaras: an ancient method where underground channels were dug at a steady gradient...

importantly, he introduced a new system of waterworks, via cisterns and khettaras (gravity-driven underground canals) designed by his engineer Abd Allah...

needs grew, a modern khettara with far greater output flow was dug in 1932-33 to water the Agdal. Nonetheless, even this new khettara wasn't enough and much...

have traditionally depended on an efficient irrigation system known as 'khettara,' but rising temperatures and drought, along with phosphate and silver...

this cistern probably relied in turn on the revolutionary hydraulics of khettaras, a drainage system characteristic of historic Morocco. Base of the Almoravid...

the rest of the city) via a network of underground channels known as khettaras. There is also a small modern amphitheater on the edge of the reservoir...