IJERT-EMS
IJERT-EMS

Sediment Yield Assessment and Mitigation Measures in Finchaa Watershed, Ethiopia


Sediment Yield Assessment and Mitigation Measures in Finchaa Watershed, Ethiopia
Authors : Megersa Kebede Leta, Dr. Ankit Chakravarti
Publication Date: 16-08-2017

Authors

Author(s):  Megersa Kebede Leta, Dr. Ankit Chakravarti

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 6 - Issue. 08 , August - 2017

e-ISSN:   2278-0181

Abstract

The effects of land use land cover changes and improper management systems have played a significant role in causing high soil erosion rates, sediment transport and affects life expectancy of the reservoir and have an impact on the water balance of the catchment.This study investigates sediment yield to changes in land use, land cover and mitigation measure practices at Finchaa watershed, Ethiopia.The input data used for this study were Digital Elevation Model, land use land cover map, soil map and data, and weather data. As the measured data was not available on sediment yield, only the simulated data has been used to identify the impact of value on some measure of simulated sediment output. Model calibration and uncertainty analysis were performed with sequential uncertainty fitting (SUFI-2) that is linked with SWAT. The results of the land use and land cover change analysis identified those farmlands agricultural land use class has expanded. Performance of the model for both calibration and validation watershed were found to be reasonably good for calibration and validation respectively. Various land use mitigation measures were further evaluated based on economic analysis as adaptation options to mitigate the land use land cover change impacts and appropriate soil conservation measures based on suitable afforestation techniques can prove influential in mitigating the risk of soil erosion in this Finchaa watershed.

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