Simulation of Some Mechanical Soil and Water Conservation Structures at Watershed Areas Using EUROSEM

Document Type : Research Paper

Author

Assistant Professor of Water Department, College of Agriculture, Shahrekord University, Iran

Abstract

Application of soil and water conservation techniques at watershed areas not only reduces soil erosion from watershed areas and sediment accumulation in the dam basins, but also improves rangelands and can recharge the aquifers . Improper estimation of the parameters corresponding to the mechanical soil and water conservation structures such as capacity, distance apart, number and distribution of these structures, may lead to loss of time and capital. In this paper a new model is introduced to predict runoff hydrograph and sediment sedigraph generated from a storm more accurately. The model used for runoff and erosion prediction at watershed areas is European Soil Erosion and Runoff Model, EUROSEM. This model is a physical distributed single event model derived to be used in small hydrological watershed areas. It is able to take spatial and temporal variations of rainfall, catchments and vegetation cover characteristics and process them in three input files and, finally, give out the results in three output files. The model was calibrated and validated using the data measured in the field for both protected and unprotected plots. The results showed that it could simulate all parameters
for  both  cases  successfully.  Thus,  proper  selection  of  input  parameters
enables the model to predict surface runoff for design and management of soil and water mechanical structures at watersheds.

Keywords

References

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Iranian Journal of Soil Research
Volume 23, Issue 1
March 2009
Pages 79-89

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