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http://dx.doi.org/10.3741/JKWRA.2012.45.6.617

Risk Assessment and Potentiality Analysis of Soil Loss at the Nakdong River Watershed Using the Land Use Map, Revised Universal Soil Loss Equation, and Landslide Risk Map  

Ji, Un (Dept. of Civil & Environmental Eng, Myongji University)
Hwang, Man-Ha (Water Resource Research Center, Korea Water Resource Corporation)
Yeo, Woon-Kwang (National Disaster Management Institute)
Lim, Kwang-Suop (Water Resource Research Center, Korea Water Resource Corporation)
Publication Information
Journal of Korea Water Resources Association / v.45, no.6, 2012 , pp. 617-629 More about this Journal
Abstract
The land use map of the Nakdong River watershed was classified by each land use contents and analyzed to rank the risk of soil loss and erosion. Also, the soil loss and erosion was evaluated in the Nakdong River watershed using Revised Universal Soil Loss Equation (RUSLE) and the subbasin with high risk of soil loss was evaluated with the analysis results of land use contents. Finally, the analyzed results were also compared with the landslide risk map, hence the practical application methods using developed and analyzed results were considered in this study. As a result of land use analysis and RUSLE calculation, it was represented that the Naesung Stream watershed had the high risk for soil loss among the subbasins of the Nakdong River watershed. It was also presented that the high risk area identified by computation of RUSLE was corresponding to the landslide risk area. However, the high risk of soil erosion by land use near the river or wetland was confirmed only through the calculation results of RUSLE.
Keywords
land use map; landslide risk grade; Nakdong River Watershed; Revised Universal Soil Loss Equation; soil loss;
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Times Cited By KSCI : 2  (Citation Analysis)
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