Determination Of Spatial Erosion Risk Distribution For Management And Planning In Yeka Ankorucha Catchment Using ?RUSLE? Model, GIS And RS, Addis Ababa, Ethiopia | 18629
Journal of Earth Science & Climatic Change
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The use of RS and GIS techniques integrating with RUSLE makes soil erosion estimation and its spatial distribution feasible
with reasonable costs and better accuracy in larger area. Such methods provide significantly better results than using
traditional methods of measuring and calculating Erosion related biophysical data on the field. Human activities such as
urbanization and industrialization and the respective land use change within a basin is one of the contributing factors, which
cause deterioration of river water quality through its potential effect on erosion. Sediment yield in the form of suspended
solid in the river water body, which is transported to the downstream area, occurs as a sign of lowering of the water quality.
Hence, the aim of this study was to determine potential soil loss using the Revised Universal Soil Loss Equation (RUSLE)
model in Geographical Information Systems (GIS) environment within selected catchment of Awash River Basin. RUSLE
was used to estimate potential soil losses by utilizing information on rainfall erosivity (R) using interpolation of rainfall data,
soil erodibility (K) using soil map, vegetation cover (C) using satellite images, topography (LS) using DEM and conservation
practices (P) using data collected by GPS for the conservation actions made in the area .The results indicated that the rate of
potential soil loss in Yeka Ankorucha catchment, Ethiopia ranged from very low to sever. The area covered by low to moderate
potential soil loss was about 51%, whereas moderate to soil loss potential covered about 49% of the study area.
Zebene Worku Weldegeorgis specialized in Environmental Management and Natural Resource Conservation. He is a designer and manager of various
environmental projects and programs at national levels in Ethiopia. He has much experience in environmental development and conservation-project planning
and the application of the Ethiopia Government Environmental policy, strategy and programs. His soil and water engineering and management background and
interests in software, together with a great deal of initiation have left him confident in researching and finding new ways, techniques, approaches and solutions for
various ecological balance disorders and biodiversity losses in specific and environmental management in general.
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