Abstract :
The city of Herât which is an important settlement from the time of Macedonian Great Alexander region gave the name to the area referred to the same name. By its location, the area which is in the switch position of India and has an important position among the countries such as Iran, Afghanistan and Turk Countries, due to the fertile lands, agriculture is place where people’s main source of income. In the Middle Ages, although wheat was grown as a basic nutrient, irrigated agriculture was a high level one. Various products were grown especially such as melons, grapes, cherries and watermelons. Continental climate in the region shown in the figure a soft, this climate typ shows instability from time to time. Because of this reason, irrigated agriculture was made in the land. For irrigation in agriculture, depending on the rivers, irrigation canals were opened so that irrigated agriculture, was made in the land. Because of the irrigation of large area, here as in other parts of Khorasan had been created an irrigation law since the ancient times thus irrigation Works put on creatin order. Executives who dominate the region new ones have opened alongside old irrigation channels for increasing the welfare of the people. Construction and improvement of channels were even more advanced level in the Mongols and Timurids time
NaturalLanguageKeyword :
Medieval , Herât Region , agriculture , irrigation canals , water allocation law.
