Population Dynamics in Geographic Regions of Iran and its Consequences

Spatial structure of population is an important issue in regional studies. Iran population has unbalanced and unsuitable distribution. In some places population is dense and in some other areas it is sparse. The unbalanced and disproportional distribution can be attributed to various factors that can be divided into a variety of categories such as natural، economic، social، political، historical، cultural and etc. Development of car industries and promotion of trade، construction and development of rural areas and new towns in different ways has a new era of development and population displacement. Influx of rural migrants to urban areas and concentration of population in cities and small towns led to numerous inconsistencies in the distribution of population in Iran. The high population growth in one hand and the implications and consequences of large population on the other hand are important factors influencing population-based studies and population movements in the geographical areas. In this study، an attempt has been made to study the geographical areas with population change and effective factors. The consequences of this change are analyzed. The questions considered in this study are as follows: 1. Are crucial demographic factors such as population growth and the youth literacy rate in terms of active population and employment rates various in different areas? 2. Is the process of migration in recent decades influencing environmental policies and planning? Could the current trend of population distribution in different regions lead to an increase in the gap between wealthy and deprived areas? The method of this research is descriptive - analytic. To obtain information in the research we used library documents and statistics as materials. Then، demographic data were used individually and based on comparisons between different periods. According to the findings and discussions، the following research questions are discussed. 1. Are crucial demographic factors such as population growth and the youth literacy rate in terms of the active population and employment rates various in different areas? Population growth: based on the last General Population and Housing Census in 2011، population of Iran was 75. 149 million. This show an increase of 4. 65 million compared with 2006 Census. In other words، the annual population growth was 1. 2 percent in the same period. Young people: the young population increased from 2. 918 in 1956 to 17. 738 2006. The proportion of young population to total population to come in the year 1956 was 15. 4%، and for the year 1966 it was 15. 2%، for 1976 it was 19%، and for 1986 it was 19%، for 1996 about 25. 5%، and 25. 2% for 2006. The literacy rate: In Tehran province (83. 8 percent)، Semnan (80. 8 percent)، Isfahan (80. 2%)، Yazd (79. 2 percent) and Mazandaran (78. 4%) and the highest number allocated to 6 years old and more educated in provinces of Sistan and Baluchistan (57. 3 percent)، Azarbayjan- Gharby (69. 9 percent)، Kurdistan (70. 3 percent)، Khorasan Jonobi (71 percent)، Koohkiluyeh Boyer Ahmad (72. 9 percent). The lowest number has been 6 years and more literate. Growth rate of the active population is characterized byyoung and educated in Sistan- Baluchistan province. This shows the highest rate of population growth and lowest levels of education and low levels of the active population. The high percentage of unemployed is about 16. 8 percent. 2. Is the process of migration in recent decades influencing environmental policies and planning? Recent immigration trends are more in the provinces of Tehran، Khorasan Razavi and Isfahan. Due to unique political status، more income and employment opportunities، easy access and etc. Tehran has attracted the largest number of immigrants. Government policy was so that caused many people to migrate to Tehran because of more facilities available.. So، it is clear that immigration trends are influenced by environmental factors، and planning policies. 3. Could the current trend of population distribution in different regions lead to an increase in the gap between wealthy and deprived areas? Current trends indicate that the population distribution is mainly concentrated in metropolitan centers due to the concentration of material and social capital. Different migrant groups have a variety of living conditions. Most cities have immigration such as Tehran، Mashhad and Isfahan. The high populated areas have more job opportunities for people and attract more people from remote areas. The results showed that the distribution of population of Iran، from West to East and from North to South is influenced by environmental factors (topography، rainfall، soil and water resources and etc)، economic factors (income، employment opportunities، etc.)، political factors (government policies، government funding، etc.)، and social factors (migration، kinship ties، religious attractions، etc). The distribution of population may lead to different effects. For example، in some areas، increased migration of people to other areas has led to a situation that the facilities and services by public and private investments are left unused. The distribution of population density is increasing in some areas such as the provinces of Tehran، Gilan، Mazandaran. These increases in density could increase pressure on the utilization of resources and environmental damage. In this review، in the form of three questions listed above we have tried to check the movement of population and geographical areas and their consequences. The results show that the geographic distribution of the population is strongly influenced by environmental، economic، social، and political factors. Each of these aspects will consequently lead to different effects.