Our country (Iran) with average annual precipitation of about 250mm is considered as an arid and semiarid climate. Sustainable shortage of rainfall has led to adverse foundation for supplying and distributing water for different uses. One of these efforts, which roots to the Islamic thought –Vaghf- has been shown in the distribution of drinking water in Shiraz city. The first water pipeline has been erected by Mr. Namazi (God bless him). His foundation, named, "Bongah AB Shiraz" had the responsibility of distribution of drinking water in the city. The refining center of water was also built in the vicinity of Namazi hospital.
The first formal foundation for the management of water affairs in the country, was confirmed in 1943, named independent water foundation (Bongah E Mostaghel E Abyari). In 1963 the proposal for innovation of water and electricity ministry was suggested and confirmed. Two years later, in 1965, the foundation of water authorities was established and in 1969 Fars regional water authority was established. This company was responsible for water resources management in three provinces (Fars, Bushehr and Koh. And Buyer Ahmad). Recently the other two provinces are separated in management and three companies are independent of each other now.
Specification of Fars province
1. Historical and Cultural Heritage: Cultural importance of Fars province with its great poets, Saadi and Hafez, great scientists and famous philosophers is not needed to be mentioned. Fars province is the basis of Iranian culture and historical entity. The great dynasty of Achaemenids with the famous emperors (Curus the great, Darius,etc) was established in Fars and remnants of their places and tombs are still among great stone architecture of the world.
2. Geographic Situation: Fars province with the area of 124000 square kilometers equals to about 7.5 percent of the area of country. 34.7 percent of the areas are plains and 65.3 percent are highlands (43000 and 81000 square kilometers respectively). This province is located between 50°-42’ to 55°-36’ longitude and 27°-20’ and 30°-42’ latitude and the mean elevation in about 1350m from normal sea level.
3. Neighbors: Fars province is in the vicinity of Esfahan and Yazd provinces (North borders), Bushehr and Hormozgan provinces (South border), Kohkilouyeh and Buyerahmad and Bushehr provinces (west border) and Kerman province (east border). Fars province consists of 112 study provinces and 182 large and small plains.
4. Climate: 271 stations are established for the hydrometric, climatic and rain and snow measurements in the whole province. Mean annual rainfall, in a 20 years span, is measured to be 332.86mm. The least and the most annual rainfall is measured in Abarkouh plain (150mm) and in the north of Dasht Arzhan (1200mm). The two final limits of temperature are -28 and +50 degree centigrade.
From all points of view, climatic diversity, span of beautiful plains and high mountains, from all aspects of agricultural products and as an ancient pivot of a vast cultural and historical civilization, Fars is called "lesser Iran".