The effective elements on the commercial structure of Duhok city

:-1. . 2. . 3. . . .The aim of this research is to detect the role of the natural and human elements in developing the commercial structure of Duhok city, and to determine the real reasons of it.in addition to the introduction and conclusion, the study discusses two points, the first one deals with the role of natural elements in changing the commercial structure of the city , while the second point tries to discuss the human elements especially the population growth ,and degree of their concentration , in addition to the role of social and economic elements , and the transportation, Planning act.The research concludes that there are many effective elements responsible of the development of the commercial structure of the city, while the population characteristics according to its growing, concentration and the rural migration was the important element to form the commercial structure of the city, spatially and functionally.