Analysis of spatial growth pattern - time in Maragheh city using spatial metric methods

Spatial metrics are patterns for identifying and measuring spatial-temporal growth in urban planning. In this research, spatial pattern measurement criteria include the magnitude of urban spots, the environment of spots or parts, their proximity and proximity, the distance of spots with the largest spots or major urban spots, the number of spots, the vacancies within spots and the size The main part of the city has been investigated Exploratory-analytical research method. Data and information from satellite imagery has been obtained and the ENVI, ArcGIS and Patch Analyst plug-ins have been used for analysis Findings and results of the research showed that the complexity index of the components is increasing compared to the previous periods The AMWS index ranged from 1. 56 to 1. 84 and the AWMPFD index rose from 1.25 to 1.35. The centrality index was also found to be 2.14 in 1365 and dropped to 1.12 in 1395, with the creation of new parts around the city, the centralization was reduced. In terms of compression index, it has decreased and the number of built-in urban areas has increased and complexity has increased In terms of urban density, the density in 1365 was 333.9 per hectare, which decreased to 55.8 in the last period Therefore, it can be concluded that the pattern of urban growth has been horizontally uneven with the degradation of fertile
agricultural lands and natural resources, and their replacement with the tissue of dispersed
and incomplete urban neighborhoods.