analyzing settlement patterns and catchment areas of the chalcolithic sites around the alvand mountain in relation to the regional and inter-regional similarities

the revival of chalcolithic sites have a particular importance in tracing the settlement patterns of the region, in the aegis of special biological features and replacing in environmental elements. by depicting the special features, the characteristics of plain of hamedan and its strength in northern plain (kaboodarhang) must be hinted. this plain is determined as a joint fund between central zagros region and central plateau of iran, because of the situation and its replacement in an individual climate. approach to the research, based on surface survey data analysis purposes gis and then combine them with data from environmental assessments. which finally leads to the analysis catchment sites.