Analysis of Spatial Growth Patterns of Khorramabad City with the Ecological Approach of the Landscape

Cities are growing and developing rapidly, and analyzing the urbanization trend is one of the most important issues for urban planners. In addition to the high level of growth rate, changes in land use and conversion of land to urban uses are also important issues. The present study is an attempt to explain the spatial patterns of Khorramabad in the last 35 years. This research is applied in terms of purpose and in terms of descriptive-analytical method and is based on remote sensing data. First, the images of 1365, 1375, 1385, 1395, and 1399 were taken from Landsat 5, 7 and 8 satellites in TM, ETM and OLI sensors, then using NVEI software and supervised classification method to land use maps in four classes: urban, agricultural, mountain and water. Became. Then, this map was prepared using ARCGIS software to enter the FRAGASTATS software and in the next step, they were called to this software to analyze the landscape. In the next step, these maps were examined using spatial metrics (PALAN-PD-NP-LSI-LPI-PD-AWMFD). In the last stage, by calling these metrics in Shannon entropy model, an overview of the spatial growth pattern of Khorramabad city in the last 35 years was obtained. The results of this study showed that the city of Khorramabad in the last 35 years has gone through different growth patterns. These patterns can be classified into 4 periods. It spends scattered in separate urban spots. In the second period (2006), due to the reduction of migrations and the development of the city within the existing spots, the city goes through a period of intensive pattern, but again in the third period (2016), Khorramabad city has entered a period of dispersion pattern as in all metrics Tendency to spatial pattern of the city is scattered. But again in the last period of 1399, space metrics have shown a pattern of intensive growth and the tendency to internal development of Khorramabad city.