Economic Geography Research

Economic Geography Research

Evaluation of physical-spatial growth of the city during the time period of its level increase in twenty years (Case study: sari city)

Document Type : Articles extracted from Thesis

Authors
1 PhD Candidate in Geography and Urban Planning, Faculty of Humanities, Islamic Azad University, Chalous Branch, Iran
2 Assistant Professor, Geography and Urban Planning, Humanities, Islamic Azad University Chalous Branch, Iran
Abstract
Sari as one of the most populous cities in Iran is experiencing a growing presence of industrial and man-made structures, which has led to the degradation of its natural environment. The present study aims to evaluate the impact of built environments on energy consumption and air pollution in the urban ecosystem of Sari. This research is descriptive-analytical in nature and applied in purpose. Given that the study investigates the comparative impacts of the built environment on the natural environment of Sari across three time intervals (1999, 2009, and 2019), the study area includes both artificial and natural landscapes of Sari city.The data used in this research regarding air pollutants were obtained from Landsat and Sentinel satellite imagery. The analysis of the data was conducted using remote sensing techniques through ArcGIS and Terset software.The findings reveal that over the three time periods, land surface temperature (LST) increased in parallel with the decline in vegetation cover in Sari. In 1999, LST ranged from 19°C to 32°C, which rose to between 23°C and 41°C by 2019. The reduction in vegetation, driven by construction and urban physical expansion, has significantly increased surface temperatures. Moreover, the spatial correlation analysis of surface temperature across Sari shows a point-to-point spatial correlation of 0.47 between 1999 and 2019, indicating that approximately 5.3% of the city's area has experienced changes in its surface temperature pattern over the past two decades.
Keywords

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Volume 7, Issue 24
Autumn 2026
Pages 18-34

  • Receive Date 29 March 2025
  • Revise Date 10 May 2025
  • Accept Date 20 June 2025