Journal of Civil, Construction and Environmental Engineering
Volume 4, Issue 1, February 2019, Pages: 35-41
Received: Jan. 29, 2019;
Accepted: Mar. 11, 2019;
Published: May 27, 2019
Views 934 Downloads 209
Dereje Gizaw Namomsa, Department Hydraulic and Water Resource Engineering, Wollega University, Oromia, Ethiopia
Tamene Adugna, School of Civil and Environmental Engineering, Jimma Institute of Technology, JIT, Jimma University, Oromia, Ethiopia
In worldwide, soil erosion effect on the water storage structures is significant for proper management of water resource and its use. The effect of soil erosion, improper management system and lack of suitable soil conservation measures have played important role for food production, and global warming problem. For modeling of soil erosion in Nashe watershed a geographical information system (GIS) version-based SWAT has been used to evaluate sensitivities and prone soil erosion area. To predict spatial & temporal soil erosion distribution stream flow calibration and validation of the soil and water assessment tool were applied using the compatible version of SWATCUP against stream flow for Nashe watershed were taken to estimate model performance on monthly basis. Soil erosion involves all parameters are important for feasible conservation of natural, agricultural and built-up environments. To model the soil erosion the analysis was done on over land runoff, soil loss and sediment yield. The model performance(SWAT) has been evaluated by using statistical parameters of (R2) and (ENS) 0.79&0.75 respectively for calibration and validation results 0.71 and 0.65 for R2 and ENS respectively, the results indicate that the best model to forecast hydrological process of the basin or catchment.
Dereje Gizaw Namomsa,
Swat Based Soil Erosion Modeling of Nashe, Blue Nile Basin, Ethiopia, Journal of Civil, Construction and Environmental Engineering.
Vol. 4, No. 1,
2019, pp. 35-41.
Arnold, J. G., Srinivasn, R., Mettiah R. S., Williams J. R. (1998). Large area hydrologic modeling and assessement part one: Model Development. J. American Water Resources Association, Vol.34(1): 73-89.
Awulachew, S. B. Mc Cartney, M., Steenhuis, T. S, Ahmed, A. A.2008 A review of hydrology, sediment and water resource use in the Blue Nile Basin. Colombo, Sri Lanka: International Water Management Institute (IWMI) 81p.
Ayana Abdi Boru, Desalegn Chemeda Edosa and Ekasit Kositsakulchai, (2012). Simulation of Sediment Yield Using SWAT in Finchaa Watershed, EthiopiaKasetsart J. (Nat. Sci.),. - pp. 46: 283-297.
Betrie, G. D., Mohamed Y. A., Van Griensven A., and Srinivasan (2011). Sediment managment modeling in the Blue Nile Using SWAT Model. Hydrology and Earth System Science, 15, 807-818.
Bezuayehu T. O. and Sterk G. (2008) Environmental impact of hydropower dam in Fincha’a watershed, Ethiopia Land use changes, erosion problems, and soil andwater conservation adoption.
De Jong, S. M., Paracchini, M. L., Bertolo, F., Folving, S., Megier, J. and De Roo (1999) Regional assessment of soil erosion using the distributed model SEMMED and remotely sensed data: Catena, 37 (3–4): 291–308.
Hurni H (1989) Soil for the Future. Environmental Research for Development Cooperation:Uni Press 62, University of Berne; Berne; 42–46.
Ndorimana L., Saad, S. A., Eldaw, A. K., Naggar, O. M., Nindamutsa, A., Chan (2005). Watershed Erosion and Sediment Transport.
Setegn, Srinivasan R., Dargahi B. and Melesse A. (2009). Spatial delineation of soil erosion vulnerability in Lake Tana basin, Ethiopia. The Royal Institute of technology, Stockholm, Sweden.
Shimelis G. and Setegn (2009). Spatial Delineation of Soil Erosion Vulnerablity in the Lake Tana basin, Ethiopia. Hydrologic process. USA: Spatial Science Labolatory, Texas A & M University, College Station, TX.
Tamene, L., Park S. J., Dikau R. and Vlek P. L. G., (2006). Analysis of factors determining sediment yield variability in the highlands of northern Ethiopia:Geomorphology, 76 - 91.
Teteri Bewket (2009). Assessment of soil erosion hazard and prioritization for treatment at the watershed level: Case study in the Chemoga Land Degradation, 609-622.
USDA(1972). National engineering handbook: hydrology section 4.
White, Smith D. and Wischmeier W. H (2008) Adapting the Soil and Water Assessement Tool (SWAT) for The Nile basin.
Wischmeier W. & Smith D. (1965). Predicting Rainfall Erosion Losses from Cropland East of the Rocky Mountains:Guide for Selection of Practices for Soil and Water Conservation. U.S. Department of Agriculture handbook No. 537.
Williams, J. R., H. D. and Barndit, 1977. Sediment yield prediction Based on Watershed Hydrology. Transactions of American society of Agricultural Engineers, Vol.20 (6). 1100-1104.
Yang W., Kanae, S., Oki, T., Koike, T. and Musiake K. (2003). Global potential soil erosion with reference to land use and climate changes: Hydrological Processes, 17 (14), 2913–2928.