بررسي تغييرات ساختار مكاني مهاجرت هاي بين منطقه اي در ايران طي دوره هاي 1355-1385

A Study on Spatial Structure of Inter- provincial Migrations in Iran during 1976-2006

This paper aims to study the indices of Inter-provincial migrations by use of migrationʹs spatial structure model and mobility transition theory of Zelinsky, in Iran during 1976-2006. The study focuses on five conceptual aspects of inter-provincial migrations which include intensity, effectiveness, concentration, connectivity and distance of interprovincial migrations. The results taken from Migration Effectiveness Index indicate that the effect of inter-provincial migrations on population redistribution and mig-reprodoction rate has reduced during 1976-2006. In addition, the inter-provincial migration connectivity over the same period has increased. Levels and trends of migration centrality indices indicate centrality in Iranʹs migration system has reduced in recent decade. Additionally a stable pattern is observed for migrationʹs distances.Changes of in and inter regional inequality of per capita incomes, increasing of communications facilities and changes of regional population growth rates have been basic determinants of Iranʹs migration spatial structure.