in the 45,000-hectare watershed area of oghan in galikash, 15 hectares of watershed biological measureson development have been carried out. which includes irrigation and non-irrigation, as well as goat work and basbashi in the region, so that we can control the sedimentation and erosion of water and soil, as well as reduce the losses caused by tuberculosis. according to the general director of natural resources and water management of golestan biological irrigation measures have reduced 70% of flood damage in subsequent years by expanding vegetation, including the flood of august 6, 1400 and even the recent flood in galikash. in oqan watershed area , we had done very good measures in watershed management and had a very good effect in collecting part of those stones, trees, and shrubs . o meeting of the first page, many people talk about people, but not being with the people, o meeting of the first page, according to the justice of some of us, with our own reports, we exchange the test that there is a depressing bali train, the functions and estimates are the most important in the field