Çok Kriterli Değerlendirme ile Ankara Güvenç Havzası’nda Erozyon Risk Tahminlenmesi

Authors : İnci DEMİRAĞ TURAN, Orhan Dengiz

Pages : 285-297

Doi:10.15832/ankutbd.447600

View : 17 | Download : 8

Publication Date : 2017-09-01

Article Type : Research Paper

Abstract :The aim of this study is to determine erosion risk classes and to generate their map in Ankara Güvenç Basin using geographic information system insert ignore into journalissuearticles values(GIS);, remote sensing insert ignore into journalissuearticles values(RS); and statistical approaches with method of multi-criteria decision-making. Basin covers about 17.3 km². In order to determine erosion risk classes, seven criteria insert ignore into journalissuearticles values(texture, soil depth, precipitation, land use, elevation, slope and vegetation); that influence the occurrence of soil erosion, and sub-criteria of that seven criteria were taken into consideration. 1:25000 scale digital soil map and topographic map were used. In addition to that, Landsat 7 satellite images were used to generate the land use and vegetation cover map. Analytical hierarchy process insert ignore into journalissuearticles values(AHP); technique was used to determine the priorities of the each criteria while, the Z-score statistical analysis technique was used to determine the priorities of the sub-criteria. Finally, linear combination technique was used to determine classes of erosion risk. According to the obtained results, 45.9% of the basin area was identified as under high erosion risk.
Keywords : Analytical hierarchy process, Determining erosion risk, Linear combination technique, Z Score