General:
     It is obvious that desertiuication in Iran has been existed as a dificaulty and now is progressing too. Besides, humanbeing occasionally confronts irreparable losses because of this phenomenon. Lots of expences have been spent annually inorder to rebuild roads and places which have been ruined because of movement of runing sands. Furthermore, vastness of lots of fertile land is reducing. So, administrators have grave responsibilities preventing this phenomenon in various WS as indicated to some of them here.
In this paper, it has been tried to point to the reason of existence
of desrtification and combat desertification. Also some politics related to this subject have been recommended.