Erosion Risk Potential Assessment Using GIS and RS for Soil and Water Resource Conservation Plan: The Case of Yisir Watershed, Northwestern Ethiopia
Agriculture, Forestry and Fisheries
Volume 9, Issue 1, February 2020, Pages: 1-13
Received: Aug. 18, 2019;
Accepted: Feb. 21, 2020;
Published: Mar. 10, 2020
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Habtamu Tadele Belay, Department of Natural Resources Management, Debre Markos University, Burie Campus, Burie, Ethiopia
Demelash Ademe Malede, Department of Natural Resources Management, Debre Markos University, Burie Campus, Burie, Ethiopia
Firaol Befekadu Geleta, Ethiopian Construction Design and Supervision Works Corporation, Surveying, Geospatial and Civil Informatics Center, Addis Ababa, Ethiopia
Soil erosion is more sensitive in the highlands of Ethiopia. The purpose of this study is evaluating erosion risk potential using RUSLE model with GIS and remote sensing to identify erosion potential areas for soil and water resources conservation plan and to prepare soil loss risk map. Collected data were processed and analyzed using Arc GIS10.2 version. Total average annual soil loss from the 2,120.33ha was estimated at 7161.06tons. The lower soil loss rate was 2.5t/ha/yr on plantation and natural forest, the maximum value was 100.62tons/ha/yr in steep slope cultivated land and average soil loss was 50.31 tons/ha/yr. About 6.35% of the area is under extremely very severe soil erosion rate. Level soil bund, graded soil, stone or stone faced soil bund, fanyajju, cutoff- drain in the above part of the catchment, waterway along the slope, trenches on grazing land, check dam SWC measures at Quala got, integrated physical with biological measures like tree Lucerne, Vetiver grass are the recommended SWC measures. This approach can be applied in other basin or watershed for assessment of erosion risk potential using GIS and RS, and this can be used as a preliminary watershed planning tool for decision makers in Ethiopia like Woreda Agriculture and Natural Resources management Office.
Habtamu Tadele Belay,
Demelash Ademe Malede,
Firaol Befekadu Geleta,
Erosion Risk Potential Assessment Using GIS and RS for Soil and Water Resource Conservation Plan: The Case of Yisir Watershed, Northwestern Ethiopia, Agriculture, Forestry and Fisheries.
Vol. 9, No. 1,
2020, pp. 1-13.
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