In this research, landform classification was performed based on the simple method developed by Weise, who used topographic position index (TPI) to classify the landform. TPI compares the elevation of each cell in a digital elevation model (DEM) to the mean elevation of a specified neighborhood around that cell. It can be calculated by a simple formula in different scales. After preparing landform map of the study area, soil sampling and physicochemical analysis were done in landforms which had the most repeatability in the region (plain and open slope). Results showed that transferring of parent material from the upper geomorphic surfaces and accumulating during the time are the main agents to form the plain and in case of open slope, moderately high slope changes with erodible parent materials that have varied over time, are the main parameters in landform formation.
Key words: Digital elevation model, geomorphic surfaces, geomorphology, landscape, topography.
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