عنوان مقاله [English]
This study aimed to determine the role of the social and economic dimensions of human geography variables - geography variables to decline in the development of speech in Tehran province and Varamin Township. Kind Of the present study was the application and of the method was casual-relative conducted. Cochran's formula was used to determine sample size. Based on this formula and the error rate of 5%, a sample size of 238 patients was determined by a stratified proportional selected. Validity of the questionnaire was a researcher-made questionnaire According to relevant experts and its reliability coefficient alpha was calculated that 0. 93 are obtained. The results for the different variables based on regression showed Increase public participation component by regression line coefficiento. 732, component subcultures 0.727, user's attitude about the Desertification 0. 704, economic support ratio 0.798, Components of the extensional methods used in this model is the amount equal to 0. 799 and Income operation in this model is equal to 0.716 Be a positive role in explaining the variance of the variable desertification.