International Journal of Social Sciences and Management Review

EVALUATION OF EROSION PRONE AREAS IN ARDAHAN DISTRICT CENTER WITH MORPHOMETRIC INDICES

Author: Dr. Murat Fiçici

ABSTRACT

In this study, which evaluated potential areas for surface and gully erosion using morphometric analyses in the central district of Ardahan where is located in northeastern of Turkiye, stream power index, compound topography index and slope position index calculations were performed. Based on the findings, stream power index values in the study area ranged from -15,89 to 12,15. The stream power index shows positive values on the Upper Pliocene- Lower Pleistocene andesite bedrock, particularly in the western part of the Ardahan Plain. These areas are where gully erosion is well developed. Compound topographic index values range from -6.908 to 14.194. Negative index values are observed on the tuff-agglomerate and metamorphic rocks in the southeast of the study area and on the faulted topography in the northern part. Therefore, these lands are important for the development of surface and finger erosion. Land surfaces with a slope of “0” and a compound topography index of “100 +” correspond to the Ardahan Plain alluvial field and the older alluvial fields in the southern part. These flat and nearly flat lands were identified as areas where material eroded from the bedrock was deposited.

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