Land use change detection in Denizli city center using spectral angle mapper method and evaluations in terms of some earth science data

Tolga Çan,Mamadou Traore,Halil Kumsar,Senem Tekin

doi:10.5505/pajes.2020.50707

Abstract

Land use planning is central for a sustainable development processes and should be structured in harmony with geo-environmental constrains. In this study, land use change detection was determined in Denizli residential area between the years 1984 and 2018. In the analyses, Landsat-5TM and Landsat-8 OLI images were used for 1984 and 2018, respectively. The geometric, radiometric calibration and atmospheric corrections were applied to the satellite images in pre-processing stage. Land use change detection was performed using supervised classification -Spectral Angle Mapper- method. Accuracy of the classifications was evaluated by the kappa index, which was 0.80 for 1984 and 0.87 for 2018 image. According to the results, between 1984 and 2018 there was an increase of 155% and 96% in built up and forest areas, while 52% and 40% decrease were observed in agriculture and bare land, respectively. It was also determined that the majority of the settlement areas increased in regions close to active fault zones. Accordingly, the built up areas within the 500 m buffer zone to the active faults were increased by 240% from 1984 to 2018.

Highlights

The exponential growth of the human population in the past two hundred years has led to significant changes in natural and built environments
Land use change detection was determined in Denizli residential area between the years 1984 and 2018
Land use change is mainly based on the comparison of the state of features, using at least two images that are taken at different times

Summary

Introduction

The exponential growth of the human population in the past two hundred years has led to significant changes in natural and built environments. Land use change is a complex and dynamic processes associated with the political, economic, cultural, technological and natural driving forces and the respective factors [2],[3]. The planning stages, from the upper level to the lower level are represented by Spatial Strategy Plan, Environmental Plan, Master development, and Implementation development Plan. In spatial strategy planning covering the national and regional level and in the environmental plans made at the region, basin or province level, it is necessary to analyze and identify natural hazards and risks for reducing the losses and take measures to decrease disaster risks. In master development and implementation development plans, geological-geotechnical or micro-zoning studies, geological, geomorphological, hydrological and hydrogeological structure, potential hazards of natural disasters, settlement suitability, risk management and mitigation plans should be evaluated

Methods

Results

Conclusion