Document Type : Research Paper

Authors

• Akram Mirzaei ¹
• Ziaoddin Shoaei ²
• Nader Jalali ³
• Alireza Eslami ³

¹ Assistant Professor, Department of Geology, Sciences and Researched Unit, Islamic Azad University, Iran

² Assistant Professor, Soil Conservation and Watershed Management Research Institute, Iran

³ Scientific Board, Soil Conservation and Watershed Management Research Institute, Iran

Abstract

In this research, Hydro-physical model was used for estimating of potential sediment yield in sub- basin of Karaj watershed. In this model limited field survey is required and five main factors as vegetation cover, rainfall, erosion ability, topography and area were used. The results of comparison made between the observed sediment yields in the gauged station of Siera with the estimation made by the model were highly correlated. Factor analysis by SPSS software was used for determining the role of those factors on erosion and sediment yield. The results showed those factors covered about 92% of sediment changing in sub-basins.

Keywords

• Hydro-physical model
• Preference
• Sediment yield potential
• Estimation accuracy
• ‎Correlation matrix