Karez


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Related to Karez: Karez System

Karez

 

(Persian; literally, an underground irrigation channel), an underground structure for collecting groundwater and conveying it to the surface. Such structures are in use in the mountainous and foothill areas of Middle Asia and Transcaucasia. Water from a karez is used for water supply and irrigation.

A karez consists of one or more water-catchment tunnels 1.0–1.4 m high and 0.5–0.6 m wide, with reinforced walls laid through a water-bearing horizon, as well as vertical ventilation wells and a water tunnel connected to a discharge channel. Karez tunnels can be as much as several kilometers long. The average yield of a water-catchment tunnel is 0.3–0.6 liters per sec per meter of the tunnel.

References in periodicals archive ?
In some areas there was a riwaj that no well should be allowed to dug close to the karez mother well (250 yards in case of soft land and 500 yards for stoney land).
The Peshmerga forces managed to regain control of the villages (Fiqirok, Kirkamish, Kopanki, Hanka, Karez, Ksrig, Large Brochure, Small Brochure ), in addition to controling of the strategic crossroad that connects Mosul, Kski, and Aowain in Zammar.
Sayed Murad Sadat, district governor of Nawzad, has confirmed the government forces control only one of the 360 karez (karez is a horizontal irrigation tunnel) and the office of the district governor.
The blast occurred in the Sauf Wa Karez area of the district on Thursday, the deputy police chief for Daikundi said.
Add to this the collapse of the Helmand region's ancient underground water cisterns, known as the karez system; frequent droughts; declining snow melt from the Hindu Kush; a lack of any national water or sewage treatment facilities to ensure that what little water there is, is fit to drink; and an insurgency that sees control of water as a weapon, and prospects for a stable and flourishing agrarian society as Afghanistan moves to transition in 2014 look grim indeed.
After successfully closing that base, the company was assigned to transition Forward Operating Base Sarkari Karez (formerly Forward Operating Base Ramrod) to the Afghan Ministry of Agriculture, Irrigation, and Livestock.
The enemies used bunkers and an intricate karez system to attack the Marines.
Add to that the collapse of the ancient underground water cisterns--known as the karez system, frequent droughts, the receding snow melt from the Hindu Kush, and an insurgency that now sees control of water as a weapon and the prospects for a stable and flourishing agrarian society as Afghanistan moves to transition in 2014, look grim indeed.
This drought has not only affected the agriculture systems but as well as lower down the level of water table and almost totally drying up the Karez.
The project "Optic Fiber Cable Balochistan Package 4" will cover tehsil headquarters of Gulistan, Musa Khel, Barshor, Duki, Harnai, Ziarat, Sinjawi, Zhob, Sherani, Qamar Din Karez and two neighbouring tehsils of Khyber Pakhtunkhwa namely Daraban and Darazand.
The fighters who ranked first in the championship were: Trifa Ahmed from Ararat club in 42 kg weight category; Nishan Qassim form Hawler Peshmarga club in 46 kg weight category; Aween Dzhwar from Qalla club in +46 kg weight category; Seaver Fathullah from Hawler Peshmarga in 51 kg weight category; Kalsum Murad from Qalla club in 53 kg weight category; Dilan Hamad from Hawler Peshmarga club in 55 kg weight category; Narmin Abdulrahman from Qalla club in 57 kg weight category; Berivan Hatam from Ararat club in 59 kg weight category; Frmesk Hatam from Ararat club in 63 kg weight category; Karez Edris from Hawler Ladies club in 68 kg weight category; Shilan Mohammed from Hawler Ladies clubs in 73 kg weight category.