عنوان مقاله [English]
The purpose of this study is analysis of affecting factors in pattern forming and channel dynamic in mountainous Intervals of Garangu River between Khorasanak villages in Hashtrood to input of river in Mianeh city. The pattern of research is comparative – deductive. materials of research are include of Topographic map, Geological map, flow Hydrological data, data provided from Dem and field data. In this research were used methods of River Power Analysis, River specific power, Sinuosity Index, Central angle, Route Sinuosity and longitudinal profile analysis in order to channel pattern and dynamic analysis. Results indicated that forming of channel pattern and dynamic in studied area was controlled by lithological features of sections. So channel dynamic in sections such as section 1 is impressed by lithological resistance of river bed and sides mainly bed deepening and it in sections such as section 10 is impressed by erodibility and loose formation mainly bed Widening that it was controlled by river lithological features strongly. The results of this study can be used to identify of interval Maximum River power and interval affected by river erosion.