Storm-Wise Sediment Yield Prediction Using Rainfall and Runoff Variables at Educational and Research Watershed of Tarbiat Modares University

Document Type : Research Paper

Authors

Abstract

Soil erosion and sediment yield from watersheds confine sustainable use of land resources. Evaluation of governing process is, therefore, necessary for better understanding of the watershed system leading to appropriate management approaches. On the other hand, different behaviors of soil erosion and sediment yield as well as necessity of regional studies have been proved. The present study aimed to access the applicability of rainfall and runoff variables of 8 storm events occurred during 2008 in prediction of storm-wise sediment yield in Educational and Research Watershed of Tarbiat Modares University (Kojour) comprises 500 Km2 in MazandaranProvince using bivariate and multivariate regression models as well as simple and transformed dependent and independent variables. Results showed that regression models had good efficiency in estimation of storm-wise sediment yield with coefficient of determination, estimation error and efficiency coefficient of above 76, below 69 and above 52%, respectively. The results could facilitate the application of given methods obtained in the present study to other areas with similar conditions and leading to the suitable soil and water management.

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