Articles | Volume 8, issue 1
Research article
06 Jan 2017
Research article |  | 06 Jan 2017

Estimating soil erosion risk and evaluating erosion control measures for soil conservation planning at Koga watershed in the highlands of Ethiopia

Tegegne Molla and Biniam Sisheber

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Cited articles

ACRES: Koga irrigation and watershed management project feasibility study report. Koga catchment and irrigation studies. ACRES International Limited, Canada in association with Shawel Consult International, Ethiopia, 2006.
Adimassu, Z., Mekonnen, K., Yirga, C., and Kessler, A.: Effect of soil bunds on runoff, soil and nutrient losses, and crop yield in the central highlands of Ethiopia, Land Degrad. Dev., 25, 554–564,, 2014.
Andersson, L.: Soil loss estimation based on the USLE/GIS approach through small catchments: A minor field study in Tunisia, Technical report TVVR 10/5019, Division of Water Resources Engineering, Department of Building and Environmental Technology, Lund University, Lund, Sweden, 5–14, 2010.
Angassa, A.: Effects of grazing intensity and bush encroachment on herbaceous species and rangeland condition in southern Ethiopia, Land Degrad. Dev., 25, 438–451,, 2014.
Angima, S. D., Stott, D. E., O'Neill, M. K., Ong, C. K., and Weesies, G. A.: Soil erosion prediction using RUSLE for central Kenyan highland conditions, Agr. Ecosyst. Environ., 97, 295–308, 2003.
Short summary
This study was conducted to estimate the rate of soil erosion and to evaluate the existing SWC strategies in the Koga watershed. A mixed approach of field investigation and an integrated RUSLE model modified for Ethiopian highlands is being adopted for soil erosion assessment. Most of the existing SWC structures fail to meet the standard due to deficient construction and management of SWC structures. The soil erosion rate is by far higher than the tolerable soil loss rate.