Examination of the Effect of Urbanization on Agricultural Areas Using Remote Sensing – A Case Study in Çanakkale
Journal Title: ÇOMÜ Ziraat Fakültesi Dergisi - Year 2018, Vol 6, Issue 1
Abstract
In this study, the effect of the urban sprawl on agricultural areas was examined by multitemporal satellite remote sensing. The study area was selected as the Canakkale City Central District being famous with agricultural diversity located in the west of Turkey. Firstly, Landsat satellite images were classified by geographic object-based image analysis (GEOBIA) method and current land cover map of the study area was created. Subsequently, changes in urban and agricultural areas over the years were determined. In the classification process, indices images (normalized difference vegetation index (NDVI), normalized difference built-up index (NDBI), moisture stress index (MSI) and modified normalized difference water index (MNDWI) obtained from satellite images were used in the class assignment of objects. The overall classification accuracy was found to be 85% and over. The generated agricultural areas were confirmed and improved by using the cadastral information established by Çanakkale Agricultural Food and Livestock Provincial Directorate. The multi-temporal spatial change data obtained by remote sensing methods are correlated with population, product quantity and yield values using regression analysis. It was revealed that a high negative correlation between urbanization and agricultural areas (r=-0.985) is available and the spread of urban areas concentrates and exerts pressure on agricultural areas close to the city.
Authors and Affiliations
Emre ÖZELKAN, Alper SAĞLIK, Sarp Korkut SÜMER, Mustafa BEDİR, Abdullah KELKİT
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