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<div align="justify">Problem statement: Investigation of interaction of human activities and rivers has become&#13; a important problem because they have essential role on rivers morphology. So, in this study Atrak&#13; River in North-East of Iran has been considered. Approach: The aim of this research was to&#13; determine human impact on the Atrak River morphology in the past and estimation of future&#13; outcomes. Results: We used MSS, Landsat and SPOT imageries, aerial photographs with conjunction&#13; fieldworks to determined banks erosion about 40 Km along Atrak River. Therefore, banks erosion rates&#13; are analyzed for 2 time periods: 1956-1967 and 1967-2000 respectively. Comparison results of five&#13; periods showed significant changes in land use around the Atrak River. River meanders were&#13; completely varied during the last 50 years within the study region. Also, the river plan gradually went&#13; out of meander shape and the river became straight in direction. The quantified average bank erosion&#13; rates were found to be slow, ranging from 0.36-3.5 m year-1 for the first and second analysis period,&#13; respectively. Conclusion/Recommendations: Based on this study, for changing and development of&#13; Atrak River bank must consider the flow volume, erodibility extent of the river banks, river material,&#13; conditions and variations of land cover near the river, organic material of soil and type of land.</div

The Effect of Human Activities on River Bank Stability (Case Study)