نظام هاي مديريت سنتي آبياري در مناطق خشك و نيمه خشك ايران

Traditional Managements of Irrigation Systems in Arid and Semi – Arid Area of Iran Case Study : Farms of Yang-Abad

Arid and semi-arid areas cover more than 30 percent of the earth lands. Analysis of the charactristics of irrigation systems in these lands can offer a basic foundation for local and regional planning. Massive research has been carried out on the existing ducts, water - storage and irrigation systems in central plateau of Iran, show the most important works of the country regard as traditional irrigation systems, where more than 70 percent of the land is arid and semi-arid. The research has been done by the descriptive - analytical method which indicates that the system of traditional management irrigation is based on particular natural geographical conditions especially water- deficiency, intensive evaporation and shining duration (the difference between day and night length in plant growth period) in Yang- Abad.