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Aisha Mohammed
Department of Irrigation and Water Resources Engineering, MadaWalabu University, Robe, Ethiopia
Ethiopia

Tamene Adugna
Faculty of Civil and Environmental Engineering, Jimma University, Jimma, Ethiopia
Ethiopia

Wakjira Takala
Faculty of Civil and Environmental Engineering, Jimma University, Jimma, Ethiopia
Ethiopia

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Morphometric analysis and prioritization of watersheds for soil erosion management in Upper Gibe catchment

Aisha Mohammed, Tamene Adugna, Wakjira Takala
  J. Degrade. Min. Land Manage. , pp. 1419-1426  
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Abstract


As morphometric investigation is connected to prioritization of watershed, morphometric analysis has got a significance role in light of soil and water conservation. In this study, an endeavour for the examination of point by point morphometric analyses of sub-basins was accomplished through the measurement of linear and shape parameters by using ArcGIS-9.3 software. Specifically, linear and shape morphometric parameters like stream length, stream order, drainage density, stream frequency, bifurcation ratio, Length of overland flow, basin perimeter, form factor, compactness coefficient, elongation ratio has been considered. The SRTM DEM (30 x 30 m) is processed for the delineation resulting in 61 sub-basins. The morphometric parameters which affect the soil erodibility are considered to organize the sub-basins and relegate positions on the premise of their association with erodibility to get compound parameter (Cp) esteem. Based on the value of Cp the sub-basin with the lowest Cp value was given the highest priority and then categorized the sub-basins into three classes as high, medium and low in terms of priority. Accordingly, high priority zone comprises 11 sub-basins, medium 19 and low 31 sub-basins. The sub-basins which are falling under high priority were a great deal more defenceless to soil disintegration and ought to be given high need for land preservation measures.

 


Keywords


ArcGIS; compound paramete; morphometric parameter; prioritization

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References


Ahmed, F. and Rao, K.S. 2015. Prioritization of Sub-watersheds based on Morphometric Analysis using Remote Sensing and Geographic Information System Techniques. International Journal of Remote Sensing and GIS 4(2): 51-65.

Angillieri, M.Y.E. 2008. Morphometric analysis of Colangüil river basin and flash flood hazard, San Juan, Argentina. Environmental Geology 55(1):107-111.

Brhane, G. and Mekonen, K. 2009. Estimating Soil Loss Using Universal Soil Loss Equation (USLE) for Soil Conservation planning at Medego Watershed, Northern Ethiopia. Journal of American Science 5(1): 58-69.

Horton, R.E. 1945. Erosional development of stream and their drainage basin. Hydrogeological approach to quantitative morphology. Bulletin of Geological Society of America 56(3): 275-370.

Nooka Ratnam, K., Srivastava, Y.K., Venkateswara Rao, V., Amminedu, E. and Murthy, K.S.R. 2005. Check dam positioning by prioritization of micro-watersheds using SYI model and morphometric analysis-Remote sensing and GIS perspective. Journal of the Indian Society of Remote Sensing 33:25-38.

Patel, D.P., Gajjar, C.A. and Srivastava, P.K. 2012. Prioritization of Malesari Minhroughi watersheds through Morphometric Analysis: A Remote Sensing and GIS Perspective. Environment Earth Science 69: 2643-2656.

Smith, K.G. 1950. Standards for grading textures of erosional topography. American Journal of Science 248:655-668.

Strahler, A. 1957. Quantitative Analysis of Watershed Geomorphology. Transactions of American Geophysical Union 38(6): 913-920.

Strahler, A.N. 1964. Quantitative Geomorphology of Drainage Basins and Channel Networks. New York: McGraw Hill Book Company.

Vandana, M. 2013. Morphometric analysis and watershed prioritization: case study of Kabani river basin. Indian Journal of Geo-Marine Science 42(2): 211-222.

Zende, A.M., Nagarajan, R. and Atal, K.R. 2013. Prioritization of sub-watersheds in semi arid region, Western Maharashtra, India using Geographical Information System. American Journal of Engineering Research 02(10):128-135.


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