In this study, it was aimed to determine soil erosion rates by using the 137Cs method in agricultural regions of Bursa. Soil samples were collected from cultivated sites undergoing soil erosion. 137Cs measurements in the samples were determined as spectroscopic using HP Germanium detector system. Erosion and deposition rates were calculated by Proportional Model. According to results, erosion and deposition rates varied between -8 and -63 t ha-1y-1, +1 and +14 t ha-1y-1, respectively

Bu çalismada Bursa ili tarim arazilerinde radyoaktif 137Cs izleyici yöntemine göre toprak erozyonu ve deposizyonu belirlenmistir. Toprak örnekleri tarim yapilan ve yapilmayan alanlardan toplanmistir. Örneklerdeki 137Cs ölçümleri HP (Saf) Germenyum detektör sistemi kullanilarak spektroskopik olarak yapilmistir. Toprak erozyonu ve deposizyonu tayininde Orantili Model kullanilmistir. Elde edilen sonuçlara gore erozyon hizlarinin -8 ve -63 t ha-1y-1, arasinda degistigi ve depozisyon hizlarinin da +1 ve +14 t ha-1 y-1arasinda degistigi tespit edilmistir.