Bandsar, Local Pattern of Optimum Utilization of Water Resources and Soil (Case Study: Watershed, Sabe Sabzevar)

River drainage basins، in arid and semi-dry areas especially such as Iran and neighboring countries، has always been central to human settlement and civilization. In many low water regions of Iran، including Khorasan’s western parts، the old people take into account the importance of soil and water resources in their life and make efforts to protect them. The usage of the successful experience in the localization of watershed management will ensure the efficiency of these operations. The aim of the present study is to investigate the effect of Badsars on the sustainable use of water resources and soil and social systems will be studied too. Sabe Sabzevar watershed with an area of proximately 74. 10835 hectares located in the central desert watershed and in political terms it is located within the city of Sabzevar. Annual average rainfall is 271 mm and maximum monthly rainfall is 57 mm for the month of March and the least rainfall is 1 mm in the Summer. Bandsar diversity in ravine water shed context is 209 which is considerable and has an important role in Water and sediment output. considering the present circumstances during the past years، people made numerous small soil structures (Bandsar). These structures، in addition to income and employment in the region have an important role in controlling sediment. In this study different aspects of these Bandsars have been investigated which in conclusion show the potential of indigenous knowledge for optimum utilization of water resources in arid and semi-arid area and the necessity of considering this knowledge as essential.